Ikenna351's Posts
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Zenus, From what you described, the sensor disconnected is the Oxygen sensor. Its the only sensor been installed on exhaust pipe or exhaust mainfold on any Fuel Injected engine. Oxygen sensor function is to signal to ECU to reduce the air-fuel mixture when it senses rich mixture via carbon passing exhaust pipe. It kind of fine tune & regulate the air-fuel mixture. Without it plugged, the car will aways run rich or very thirsty (consume too much fuel). If i were you you, I would find out why it was unplugged. Some people unplugged the O2 sensor when it becomes faulty, so that the ECU can start guessing on the amount of fuel that needs to be sprayed into the cylinders via intake manifold. You can simply look for a new O2 sensor of the same part no/type, replaced the old one with it & plug it back please. There is nothing wrong in going for the scanning, but since its obvious that what eliminates too much fuel consumption on your engine is unplugged (02 sensor), you should at least fix that first, to avoid spending money on scanning & at the end refered back to the O2 sensor. Its what I would do. Ikenna. |
@ Poster, Did you at any time flushed & refilled the car cooling system/radiator without bleeding the cooling system? To be honest, your thermostat might not actually be faulty. if you change your car coolant without bleeding the system, the system will have what we call airlock. The airlock will make the engine to suffer what we call airpocket(overheating of cooling system). what & how do I mean? When you flush your radiator or cooling system, air will fill the vacuum, formely filled with fluid. Then, while pouring in fresh coolant, the air in the engine walls will be trapped, since the thermostat is shut/close. The air trapped is called "airlock". If one run the engine with the airlock, the air trapped around the engine walls will be boiling the coolant beyond the operating temperature & the boiled air ( in fumes) wont be able to pass the hole on the thermo when it opens. Thus, the engine will be overheating, few minutes after the engine starts. The engine will be regarded as suffering from "airpocket", which can easily blow up the Cylinder head gasket, if care is not taken. Whenever you decide to replace/fix back the thermo, make sure you bleed the cooling system from the bleed screw. You should be able to locate the bleed screw when you refer to your car owner's manual. If you dont have the manual, Trace the screw on all the hoses linked to the radiator, you will see it. Your manual should be able to guide you on how to bleed the cooling system. If you dont know how to bleed, ask & I will explain. There is a way you can find out if a thermostat works or is ok. Pour some water in a kitchen pot, put the thermo in the pot filled with water & boil. As the temperature rises to the temperature the thermostat is supposed to open to pass fluid, it will open right there inside the pot, even before the water start boiling. But like I noted in the earlier post, you need to check your car owner's manual to know the operting temperture of your car cooling system, which will tell you the temperture when your thermo should open. Like I would always tell people, stop listening to clowns/destroyers that call themselves auto mechanics/rewires here in Nigeria. Bunch of Clowns! Arm yourself with the your car owners manual, workshop manual & wiring diagram. Start to learn how to fix your car, at least, the basics by yourself (DIY). We cant be too busy or too big than the western world that diagnose & fix their vehicles by themselves. It can be scarely in the begining, but with time, you will know more than those clowns. You have access to internet which is a big impotant tool those clowns dont have to update themselves with the modern way of diagnosing a car. I dont remember the last time a mechanic or rewire touched my car. It feels very good/satisfactory when one diagnosed & fixed his/her car by him/herself. Its is the best way of ensuring PREVENTATIVE MAINTENANCE. I would also advice that you search for an online community or forum of your car .e.g. Honda Accord, Honda Civic, Toyota Camry,etc. No matter the make or model of your car, you will find a forum online where you will see your fellow owners of the car discussing & suggesting to a fellow member what to do & how to go about fixing his car problem, with a similar experience. you will learn a lot from others experience. There you can also get & download free owners & workshop manual from fellow members. Its so unfortunate that we are not getting such good things here in Nairaland autos. Instead, cars for sale. Unlike other forums that have sections for cars for sale & sections for discussions. Ikenna. |
Vehicle engines are meant to run well at a certain temperature. It could be 80, 90 or 95 degree centigrate, depending on the engine. only when it warms at the operating temperature that longevity of the engine is ensured. your engine is emiting black smoke from the exhaust now, I believe, because its running rich (excessive fueling). its running rich because its no longer warming to the operating temperature which is the work of thermostat. as long as your engine keeps running cold, the ecu will signal the injectors to spray excess fuel, believing that the engine is still cold. Your raditor electric cooling fan is no longer coming on frequently as it used to because the fluid/coolant in your radiotor are always cold & the sensor on raditor that is suppose to on the fan when coolant temperture starts exceeding the normal operating temperature its always sensing the engine temp very cold. If i were you, I would replace the thermo like you said you would do & have a piece of mind. Ikenna. |
Quick answer: If what you want is a car for city driving & once in a while travel with it, go for I4 Camry. So that you dont come back to complain that you were misled. On the other hand, if what you want/need is a car for frequent long distance use, then, go for Camry V6. It will serve you better for such usage. Also, most V6 cars have better/special suspensions, cross bars & struts (shock absorbers) that maintain the car good balance on high speed, considering the nature of Nigeria high ways, as well. Bear in mind, be it I4 or V6 Camry, they both can be durable only if PREVENTATIVE MAINTENANCE is adopted. Ikenna. |
A lot can cause such symptom: rich mixture. The following Injection system components can make a car run very rich or thirsty: fualty Oygen sensor (O2), failed Fuel pressure regulator (FPR), faulty Air flow meter (AFM), Vaccuum leak (leaking of air hose), clogged/dirty injector(s), blocked fuel line/pipe under the car, etc. You need to start eliminating all these one after the other till you get the culprit. If i were you, I would start with Vaccuum leak. Make sure that all hoses on the engine dont have any leak & are all well plugged in. Hope no one has disconnected the O2 sensor wiring connector/plug from the sensor? If I may ask, is the car emiting black smoke from the exhaust? Black smoke means "excessive fuel". That is too much fuel is been injected into the cylinders via intake manifold, which can be caused by any of the things i listed above. Bear in mind that the no of cylinders of a car engine(I4, V6, V8, V10 or V12) wont stop the engine from running rich if any of the injection system components is faulty. Proper maintenance & proper diagnosis keeps an engine mixing air & fuel properly in cylinders. Ikenna. |
Missed me? ![]() Two weeks ago, I pulled the engine bay harness (to Ignition & Injection ECUs) and explosed the wires and found what i was looking for: terrible connections on all engine sensors, disconnection of Injectors, fuel pumps, IAC & MAF relays and bypassing of the connections to battery. I reverted the wrong connections, reconnected the the relays,etc. I completed the job very late at night, around 8pm. I started the car and the engine started running sweetly, smoothly, no more hesitation, no more hard starting, no more surging, no more hunting,etc. All ignition problems gone. But i still saw little black smoke when accelerated very hard. I checked again vacuum lines and blocked one of them and it just stopped. I floored the throttle and didnt see any smoke. In fact, for the first time since i have the car, it was bringing out steam from the exhaust. Later on, i decided to try back the IAC the car came with which i replaced long time ago with one from 605 V6 (ZPJ). After putting it, the there was no smoke at idle, but would throw out little smoke from exhaust when accelerated hard. I removed & put back the 605 IAC and the black smoke was gone again. I filed the fuel tank, add MOBIL fuel injection system cleaner in the tank, drained and refilled the engine oil and replaced the oil filter as well two days ago. Am observing it to see if fuel will dilute oil in the oil pan again (which i doubt). The car is now running great! ![]() Now am happily hunting for 605 V6, which will be my daily driver, because the 505 V6 5sp manual is really a fun car to drive and will be used occassionaly and is my BABY! Ikenna |
zuker:Your car engine dosent have timing chain, rather, timing belt. Did your mechanic replaced the valves when he replaced the broken belt? Trust me! Broken timing belts on high speed send valves to graveyards. At, least, some of the valves must have bent or become unuseable. Next time, dont learn through the hardway, at high cost. Replace your timing belt every 20k kilometers, considering the low quality of spare parts in Nigerian markets. Ikenna. |
Possible cause: Vacuum leak, throttle stop or non-signaling of sensor to ECU. Start with Vacuum lines. Check if any is leaking or left unconnected. If checked out, try all the wiring connectors on the sensors to be sure they are well fixed/tight on the sensors. Unlikely, you can check the throttle stop. If out of adjustment, it can affect the TPS (Throttle position sensor) funtioning properly.i.e telling the ECU the position of the throttle butterfly, as you accelerate,etc. Goodluck. Ikenna. |
ikeyman00:I disagree with you! If a car engine operates at cold tempreature, it consumes more fuel, until it gets to a certain temperature. Engine is not meant to run cold. The way and manner this clowns that call themselves auto-mechanics and rewires in Nigeria confuse and wrongly advice people is very baffling. The Thermostart & radiator temperature switch control Radiator cooling fan. As the thermostart opens to allow hot coolant to flow back to Radiator via the work of water pump, the radiator temp switch will feel the temperature change in the coolant in the radiator. Then, The radiator switch will switch on the radiator cooloing fan & A/C condenser cooling fan to cool or suck heat from radiator, which cools the coolant while been pumped back to the engine walls, to maintain the normal operating engine temperature. As soon as Thermostart feels the normal temperature in the engine walls, it will close up. The coolant in the engine walls will remain there,while the hot coolant that has been pumped to the radiator will be cooled by the Radiator fan or breeze from the front grille, if the car is in motion. As soon as the temperature of coolant in the radiator comes down to normal, the radiator temp switch will turn off fan, pending when the car becomes stationary and start to heat beyond normal operating temperature, then the whole process will repeat again and again. Unfortunately, our mechanics will disconnect the radiator switch and connect the fan directly to Ignition switch and disconnect the thermostart. Thereby making radiator cooling fan to permanently run as soon as ignition is on. Thats the more reason why the Electric fan dies often here in peoples car in Nigeria. Running continuously shortens their life span. It shouldnt be running when a car is in motion or on speed. The breeze entering the engine bay via the front grille is enough to keep the engine at a normal temperature. Please, stay away from those Clowns!! They will kill you before your time. Ikenna. |
What does the engine Immobilizer got to do with replacing the engine?! These clowns here in Nigeria that call themselves mechanics and rewires. Run for your dear life. The problem with the car is pure electrical. If the electric wouldnt power the relays, sensors and finally ECU, no Jupiter will make that engine to run. If your car security system becomes faulty (which is electrical), your ECU wont run the Injectors, etc. I think 406 ECUs have inbuilt Immobilizer (am not sure). If that is the fault, borrow ECU from another 406 Prestige and try. Or you find the car immobilzer and disconnect it. It could even be a minor electrical fault, that wont have anything to do with the ECU. Do you have the 406 workshop manual and wiring diagram? If not, try to get one, to save yourself from the "Clowns" that will kill your car, in the name of trial and error. The manual will show you how to troubleshoot your car electrics and the location of electrical components in the car. It wil also tell you where and what to check, replace or do when the car is having various faulty smyptoms. You wont need any rewire again to diagnose your car if you have the car workshop manual. Ikenna. |
Simon, You know the answer to your question. You just needed people to tell you what you want to hear, not what you need to hear. I will be straight with you. There is nothing wrong with automatic trans. You just have to bear and deal with it annoyances as it shows up. Because, it will surely does. Why, Auto tranny hates heat. Its a straight ticket to its graveyard. Traffic jam situation in Lagos will make sure of that. Only if you will have to be religiously maintaining the box, by changing the fluid regularly/frequently with quality auto box oil with recommended viscosity. Manual tranny, can be a nightmare for someone who is not an expert in driving them (lacks good knowledge of Clutch engagement). People that complain about how unreliable clutches are, are people who do not deserve such cars. Not every person you see on the steering wheel is a driver. Final note, if you are ready to maintain the auto box, buy the auto option. It could suite your need. Ikenna. |
Joofirst, Toyota Collora is good & reliable, but you wont get any driving pleasure out of it! The car might seize to interest you sooner than you expect, as soon as you get it, i.e. if you are expecting it to ba a ride. its not a ride, rather, a car (from point A to point B). just for mobility sake! VW Golf! Hmm. its road handling is much better. Performance is much better too. But i woudnt know how reliable it is. It can be considered as a ride, but not a performance car, though. Fellow, it all depends on what you want in a car. Both are good, but have their good sides & annoyances. Ikenna. |
Hi Siena, I sent you a mail yesterday to siena@hotmail.co.uk. Have you receieved it? Ikenna |
Hi George. First time we agree on something ![]() Anyway, i hate wasting my time trying to prove to one how relaible, durable & powerful a V6 is. No matter how good an I4 engine is, it can never eliminate engine vibration at high rpm. Unlike V6 engine that will smoothly rev beyond 7000rpm or the red zone. The balancer shaft on most of the V6 does the work of eliminating engine vibrations, even when clanking the engine. If you doubt me, place your hand on a car bonnet with V6 engine and have someone clank or start the engine for you. Come back and tell us your findings. V6 engine high torque/engine speed is so powerful that even when one of the spark plugs is not working, the engine still pulls the car as if nothing is wrong. Once you get on the wheel of any V6 and hit highway, you wont give a damn about the propaganda of fuel economy of V6. The manuovering and road handling of V6 car on hiway gives one so much fun and relaxation. In fact, you will be gigling like a girl till you hit your final destination ![]() About the crap about high cost maintenace of V6. Keep listening to the Clowns that call themselves mechanics in Nigeria. V6 engines have proven to be very durable. A V6 engine, if properlly cared for, can exceed 800,000 km before need for engine rebuild. The extra 2 cylinders reduces the stress on the engine been cause by the added load on the engine such as A/C, power steering pump and long distance drive. There is nothing wrong with I4, though. Ikenna. |
Am still anxiously looking for a 505 V6 in good condition to buy. who has one to sell please? ikenna. |
What!!? A 4 what!!? Hmm! You are not serious. What makes you think that the cause of the rich economy is because its V6? Even I4 engine would as well drink fuel like hell, if its having fuel economy issues The more the cylinders, the less stress on the engine, especially when on a long jourrney. Its a long distance vehicle, not a city car! Fix what you have. Even the I4 has its own headaches too. Ikenna. |
biggiyke:The Rocker arm is located in the Cylinder head. Its attached on the Camshaft and it controls the Inlet & exhaust valves to open and close via the engine timing. Yes, faulty rocker arm would cause rich fuel economy (engine will drink fuel like fish ). It appears your engine needs valve job.Ikenna. |
Siena:V8 keh! Of course, i would love to. I love driving cars with powerful engines. Its just that the PRV 2.8 even-fire engine is a very sweet smooth running 90 degree V6 engine. It has so much power, with roaring sound when in action. Being a short stroke engine makes the engine to produce a high torque at low rpm. And also, the bottom part of the engine has been proved over time to be indestructible, as long as there is oil in the sump. Also, its camshaft is driven by chain,not belt, prone to failure at will. I wouldnt mind to have V8 in a 505 really. But maybe, will consider that when i have 2nd or 3rd 505. V8 makes sense really ![]() Ikenna. |
Siena:Siena, By myself, I was able to reverse the wrong connections the rewire did. The car is now running. But it appears the injectors will need to be replaced (all). Fuel dilutes oil in the sump, the engine hard start when it warms and still emitts black smoke, with unburnt fuel odor that pains the eyes from the exhaust. All these systems I believe are been caused by leaky/leaking Injectors. Also, the damaged MAF sensor by the reiwire is yet to be replaced. Those, the injectors and MAF, are the next components on my to-do list to be replaced, hopefully, would fix the remaining electrical issues with the car. Except that, the car runs and performs like rocket once it hits the road, especially the highway. I love that car. Since am not sure when the "promised" one is coming, I will be a fool to fold my hands and keep waiting, when I know , with determination, this one can be fixed, though at high cost. But am doing the fixing myself. No more mechanics or rewires for me, except in serious matters, maybe in future. Ikenna. |
There is this French car forum http://www.aussiefrogs.com/forum/forumdisplay.php?f=12 that am recommending that you join, which am a member of. Believe, you wont need a mechanic to diagnose your car, once you become a member. Ikenna. |
This will help in explaining it more to you. Enjoy. http://en.wikipedia.org/wiki/Peugeot_406 |
That depends if yours is Petrol driven. Is it Diesel? Ikenna. |
Since its 1996 production, its 1st series 406. From 1995 to 1997, I4 engine was used. The engine model no. is XU5 JP (BFZ). And the cubic capictty of the engine is 1.580 cc (1.6 liters). So, to make it easier for you, look for a '96 406 production and get the ECU part no. Google it.m It wont be that hard for you. Also. you will need to join online various 406 owners forum. Getting a part no. like this wouldnt have been a problem for you, if you were a member of such forums. You will get all the help and technical info you will need to keep the car on the road. And finally, learn how to fix your car by yourself (DIY). It will save you a lot of headache the Nigerian mechanics and rewires will be giving you, each time you give them your car to fix for you. Ikenna |
Pls mind you, our mechanics and rewires here also call or regard Ignition module as "Brain box" too . So you will need to find out which of the "brain boxes" the mechanic was refering to ikenna. |
oladele007:Still sound weird that you drove the car without the ECU ![]() Let me get something clear. Does the engine still start and run at all? You said the engine knocked when you drove it , Was it after the the ECU was "removed/stolen"(according to your mechanic) that the engine knocked? Anyway, let assume the car really dosent have ECU now. For you to get the part no of the engine model ECU. First, you need to find out the model year of the 406. Is it the 406 the first series? I couldnt open the 2nd pic you send which you noted in the mail that its the car pic. Otherwise, i could tell from it which series it is. Also you may also need to find out the engine model no. or its cubic capacity. Knowing the year model of the car will help a lot in tracking the factory spec ECU part no. Installing another ECU type involves replacing or modifying the wiring harness/loom. The question is "Do yoy trust the competency of whoever will do the transplant/modification for you?" Oladele, trade carefully since you are dealing with electrical/wiring issue with the so called Nigerian rewires, so that they wont end up grounding the car for you. Trust me. You wont like it when it happens. Ask Siena what i went true with mine in their hands. Ikenna. |
The engine pics shows its EFI (Electronic Fuel Injection) engine. So, yes, there should be ECU in the car that controls the engine electronic components. The engine cannot run without it. Its the ECU that signals the injectors to open and inject fuel into combustion chambers via intake valves. The ECU gets info from sensors, including AFM/MAF sensor, and determines the fuel/air mixtures in combustion chambers via intake manifold. The ECU dtermines which spark plug to ignite or produce spark in combustion chambers. Simply put, the engine cant run without it at all. I believe locating the ECU in the car is the problem with the mechanic. Lets hear from Siena too. Ikenna. |
Dont forget to send the pics to Siena too. Ikenna |
Hmm! what kind of Mechanic that tells you your car engine runs without an ECU? Unless the car engine is fuel carburetted, thats weird! Ikenna. |
Operation:Operation, You were not pissed more than I was when I gave my car to a rewire to replace my starter solenoid, which was cating up, only for him to start messing with car wiring connections he didnt understand and ended up grounding the car. I temporally became a madman that day when I came from office to pick the car, only to meet my car undrivable. Hmm!! Bunch of clowns that call themselves mechanics and rewires in Nigeria that cant even differetiate Injector with throttle body. Bunch of clowns With the workshop manual, i reversed, myself, the useless wiring connections he did and replaced all the electrical components he burnt/damaged that cost me fortune. None of those clowns will see my engine bay again, especially the rewires. I have resurrected the car again. Its now running, but have some issues i still have to take care of myself. Start learning how to fix your car yourself. You will have a better understanding of your car than those clowns that have no access to online, to update their timid knowledge on autos. Goodluck Ikenna. |
toyota3506:What an Irony! Everything you said was just the opposite. Wake up man! Even though am not a fan of any of them (Toyota or Honda), Honda still makes sense, compared to Toyota. Toyotas, to me, are just "Mobilities". Something that takes one from one point to the other. Just a semi-car. Lol! Ikenna. |
oladele007:Its called ECU (Electronic Control Unit). Most modern cars that are not Peugeots use PCM (Powertrain Control Module) which does the same function of ECU. Before you condemn your ECU, have your mechanic confirmed if the culprit is CKP (Crankshaft Position sensor)? That depends on what is wrong with the car. Is it that there is no spark? ( I mean the engine cranks, but no start?) Also, has he also checked the Amplifier/Ignition Module? If any of these components is faulty, the car will not have sparks on the spark plugs, which most Nigerian mechanics would attribute to faulty ECU. Peugeot, at least the older products, used Bosch Jetronic ECU on their EFI engines, which have been proved to be very durable, reliable & industructible to some extent. I can attest to this, after owing and using 505 V6 for a while. If 406 has Bosch ECU, then I would adivice you to check the two components i mentioned above, that is, if they have. Is your 406 model the Distributorless type? Ikenna. |
Thanks Siena. Of course, I know what entails and the risk that will be involve in replacing the wiring harness with the V6 loom. Definitely, it wont be a simple drop, there might still be small modifications to make it work. But the problem is "who is competent to do it here in Abuja?" Am not ready to take that risk again with all these incometent rewires here in Abuja. Its only in the East that the job can be done well. It will be an expensive project to emback on. Besides, the car has to be in the East to get it done. I have made enquires at Onitsha and was told the V6 wiring harness & instument cluster and would cost me N15,000. But they are yet to get the price of the two ECUs (Ingnition & Injection ECUs), which are both Bosch. Like i noted in that thread, I would prefer another 505 V6. But this time, a standard one. I will check the sites like you suggested. Ikenna. |
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These clowns here in Nigeria that call themselves mechanics and rewires. Run for your dear life. 