sultaan: I don't know anything but I know the oyinbo engineer eye design am put a duct with no holes in there for a reason and they clamped it tight so just defer to factory specs
honmusa: Can u explain why map was dropped in favour of maf in subsequent later model of Camry ,I want to learn from u .I am sure you are not born yet when I start to understand the concept of maf and map. Too many small kids in car talk this days ,no wonder Siena left for goods.
Easy bro
Well , this is a platform to share what we know and understand. some people might agree with you, some might not, based on their frame of reference.
What matters however is hard facts and readily available knowledge for all to tap from and see from a common viewpoint.
chukel: Mayor2013 and honmusa,u need to understand the concept of map and maF, what they measure and where they measure. Kudos to gazzuzz and obekediamondfuto
I Think they do. the issue is the situation where either sensor performs below threshold.
MAP sensors due to its design purpose is usually located where the best amount of vacuum can be measured. this is why it is located very close to the intake manifold (in most cases, the throttle body). Like i said earlier, any leak before this point should not give problems. But leaks after this point will definitely cause engine performance issues. Therefore only leaks around the manifold gasket, throttle body gasket or the manifold itself (cracked manifold) should be suspected when such issues arise, not leaking hoses.
the MAF on the other hand measures volume of air, which is then stoicometrically compensated for via the required pulse with of the injectors, depending on the driving conditions. For it to be most effective, it is always located immediately after the Air filter box. This means that any air that goes into the engine after this point will be unaccounted for, giving rise to lean codes and whatnot.
Some cars use both systems e.g 2008 Honda accord 4 cylinder( Gazzuzz check your engine bay, i might be wrong).
In the OP's case, what he should be worried about is the quality of air going into the combustion chamber. It would definitely affect the MAP sensor, which will end up becoming dirty and may start giving false readings to the ECU. , causing engine performance problems... This is aside the long term damage it might cause the engine.
Spiff20: Port harcourt city is no doubt the 3rd most developed metropolis in Nigeria after Lagos and Abuja and it's the Nigerian oil capital. The city is also listed among the world top energy cities and it is arguably the oil hub of Africa. Lots of visitors troop in to the city on daily basis ranging from foreign and local investors to tourists owing to the fact that it is regarded as Africa's top oil and gas destination. It has become imperative to list out the best cosy residential areas for people who are planning to relocate to the city either for work purposes or other personal reasons. These places are cool and serene, away from the hustle and bustle of the city and suitable for cool headed people who are allergic to noise, celebrities, expatriates, government officials etc.
1. NEW G.R.A: Most of you might think this place is for government officials alone, well you are wrong because it's not just for them alone though original it was, but as at now it isn't anymore because lots of people who are not in government own properties there and even the streets are named after them. For those of you who resides in the city you will agree with me that New G.R.A is very posh, cosy and well reserved. It could be regarded as a little town of it's own due to how large it is. It consists of G.R.A phase 1 to 5. Lots of hotels (5 and 4star) are located here, the prestigious Genesis Deluxe cinema, the PH Polo club, classy events centers, nite clubs, departmental stores, eateries are also located here. Despite all of these, it's still tranquil to reside in, though properties here are awfully steep, you have to pay through your nose to get one. Night life is common here, it's home to the popular night clubs the city boasts of (casablanca, cheers bar, PH lounge etc). The environs are neat with trees on every compound, creating the perfect ambience for nature and relaxation.
2. OLD G.R.A: Actually this place is for the high and mighty and for top government officials. But in recent times some non-government officials who are wealthy has come in to the picture and it's no longer the same again as far as you have the money you can own a property here. The environment is quiet as a grave yard that you can actually hear the sound of a pin dropped on the floor. It's also beautiful, trees form shades and boulevards are common here. It's home to the port harcourt club and numerous hotels.
3.PETER ODILI ROAD: Residents of PH would agree with me that this area is one of the fastest developing area of the city. It is part of the trans-amadi industrial district and few kilometres away from the city center. It's quite serene and beautiful suiting that cosy atmoshere you desire. Go there at night and you will appreciate it's beauty. It is gradually becoming a boom town. Located near the NLNG and Rainbow housing estate is another plus for it and in the near future it would match up with the G.R.A's if not surpassing them.
4. ADA-GEORGE/AGIP: Following the dualization of it's major road, this area sprang up to existence as one of the most sought after residential areas in the city. Not too rowdy, not too quite just at the middle it will suit any family.
5. EAGLE ISLAND: This little neighborhood lies in between the diobu river and the mgbuodohia/agip river. It's calm and placid has lots of beautiful houses close to the sea side and in close proximity with the Nigerian Agip Oil company and illaobuchi(PH Electronics village). For those of you who have a thing for island here is your place.
That's my top 5. Feel free to add yours so our visitors will have a handful of choices to make. Hope this makes front page.
From the video u can see an evidence of vacuum leak and the engine managment system is still able to detect lean condition even wen the AFS is not even working. So how come ? The speed density fuel management system of a Camry 5s doest not only rely on only the map sensor data to supply the stoic equivalent amount of fuel injection for each amount of air ,It also takes data from TPS and other sensor.There is actually a preprogrammed algorithms inside the ecu that checks for all the sensors data to make a self diagnosis decision not based only the map sensor And how vacuum leak can cause engine performance issue is that is air leak will introduce more air into the intake system which will not be compensated by the fuel injection needed to balance the tps angle opening causing less fuel and more air (lean ) Vacuum leak in camry 5s engine will cause poor performance issue ,high rpm at idle and high fuel consumption . Practically,i have gotten many cases of camry 5S customer complaining of poor performance and high fuel consumption and the sole reason is cause of leaking air duct. Although Maf will be more affected than speed density but that it will not be affected at all is a capital No Finally ,the primary reason for map is not for fuel injection decision making only ,it also perform egr sensing
GAZZUZZ: unmetered air from? All air still comes in via throttle body.
Infact remove all the plastic piping and run car without the filter box, you will have only unfiltered air.
Dont forget to block off the evap line.
But don't forget that u need the map sensor for the car to run. The air comes in as it is. What is really metered is the quantity of fuel supplied via injectors to the combustion chamber.
Unfiltered air, yes. As long as what component removed is before the MAP sensor, then there should be no problem, asides damaging your engine with dirty air.
This is a 1998-2001 toyota camry with a 4cylinder 5s-fe engine
It employs the use of a manifold absolute pressure system for its primary regulation of air fuel ratio.
There is no Mass airflow meter in the design.
engine will suck up air that is not filtered.
The harmonics wil sound a little different.
The positive crank ventilation unit will loose a little efficiency.
Summary get a replacement.
Unmetered air will still knock off the air-fuel ratio balance, which will still cause rough idle, missing and hesitation , asides unfiltered air. Also obvious would be vacuum leak issues . This in fact is what will affect the MAP sensor and will definitley cause incorrect info to the ECU.
Aboriota4real: But why do u people always sneak into other people affair like u guys have nothing important to do with ur time, how is changing the price is ur headache or problem, am in charge of the car and not u, so i can put any price that suit me not u and by the way u guys re not the ones buying so why taking ALAKUN on other people headache?. when i look around i see many jobless men on NAIRALAND. Nonsense
Na greed dey worry you. Just sell it quick and move on with any reasonable margin you get. The owner will end up selling it himself ooo.
Referendum50: No one gives him advice ,he opens his mouth to say anything calling one group 97% and calling the people that feed him 5% ... How can such a person be a leader of the free folk... Nothing good can come from the north ,people say
mayor2013: No propella.no drive shaft. Excuse me sir. For this journey to Warri. You are on your own
I see your car is 4wd.
i would say that the front differential is toast.this is most likely due to lack of oil in the case, most likely as a result of a leaking seal.
Yes of course , your gas mileage will improve because of less drag. Personally i do not see any negative implication of removing it, since the truck is by default 2WD until auxiliary is engaged by driver input to get 4WD. (which of course, in the present situation,MUST NOT!)
I would say that you should also take a look at your transfer case too, to be sure there is no binding/locking
All the same check if you are in Lagos, check for this moniker : GAZZUZZ on this forum and contact him for proper diagnosis
Paperwhite: Belated damage control as Buhari's bigotry is legendary from antiquity.Recall the 97/5% statement,even the independence day "hate speech" and the eastern railway corridors that were not initially included in the project but even when done,no funds were allocated for it while others have theirs approved.Sure the "presidency" cabal are here as usual to lace the obvious lie with more lies.Lies is richly engrained in the DNA of all members of the APC.*Spits*
okpobe: I'm have almost the same issue with my toyota camry, the only deffrence here is that my car start immediately the engine stop running, you can re-start, i have try everything with no solution now a friend is recoomending a mechanic in Abuja for me.
Have you replaced the fuel pump assembly?(not just the fuel pump)
Car Talk › Re: Auto Guru, Please Help. by Inception(m): 3:14pm On Oct 21, 2017
