Lexusgs430:


I have owned a 3rd generation Toyota Prius and a second generation Lexus GS450 H. I have not achieved quoted figures (probably because my right foot, is lead induced).
Hence my disengagement from the hybrid revolution.

"(probably because my right foot, is lead induced)."
You now see abi?
As I earlier mentioned, but did not go into detail;

Hope your mechanic does not service your hybrids with 20w50 oil? If so, run!

Hope your e-CVT has not been overfilled with transmission fluid? some mechanics refill through a wrong hole. If so, run!

watch tire change I.e differences between stock tires and new ones. It may determine inflation pressure that affects fuel economy. If you install new tires with higher max inflation pressure, kindly increase your tyre pressure. low pressure causes tyre sidewall flex, increases rolling resistance thereby increasing fuel consumption. Stock tires also have low rolling resistance in contrast to new ones.

Check aged HO2S and spark plugs. In fact, kazeems will remove iridium spark plugs that can ignite lean mixtures easily snd replace with conventional copper plugs. Run!

Hope kazeems have not gutted CAT. It's detrimental to hybrid engines becsuse of intake/exhaust valve overlaps.

Hybrid thermostat should be padlocked and be made a no-go area to a Kazeem.

Some hybrids are happier with higher octane fuel.

..........plenty plenty other reasons.
Regards.

Lexusgs430:


Have you owned or driven hybrid cars before? I tend not to believe all those fancy brochures and figures, manufacturers usually quote.
Real driving life experience, is the best judge!!!

I have a camry hybrid as I write.
I used to think same as you do because I am used to driving between 140km/h to 190km/h until I painfully tested about 100km/hr between Abuja and Kaduna this month. I was amazed at my findings (almost specs MPG value).

The highway MPG values released by the manufacturer is true but not under aggressive driving conditions. These values are higher for hybrids than similar conventional cars. Some people (myself inclusive) have had MPG values that surpassed the one quoted by manufacturer by very careful and skillful driving. I think they call it hypermiling...... There are some unique hybrid car driving skills.

Note: Bronchure MPG values for conventional cars may not be easily realised too under normal driving conditions we are used to.... so, it is not hybrids alone.
There are power train/other issues that can prevent a hybrid ( in fact, any car) from having good highway MPG values (there are special cases for hybrids). The discussion will be lenthy and not within the scope of this thread.

I do not mean that in real life, hybrids MPG specs are exactly as they are quoted by manufacturers but in comparison with non-hybrid versions, they have better MPG values even on highways (with lesser margins for highway in contrast to city).
Regards.

Lexusgs430:


When you use them within a congested city, yes!!! But as soon as you hit the motorways, it's the same consumption level as conventional engines within the same range !!!

You are right oga... but not exactly I think.
Even on highways, the hybrids are more fuel efficient because of regenerative braking, use of more efficient Atkinson cycle engine, electric power steering (though not for hybrids alone) and e-CVT.
The consumption will be identical to that of the conventional engines at very high speeds (with limited coasting/braking) when the batteries are not given the chance to recharge.
Hybrids still show remarkable MPG difference at highway speeds close to 100 km/h.
You get better MPG values when you use cruise control (not in terrain with hills) or you maintain constant speed rather than constant throttle.

What kills hybrid's fuel economy in this part of the world, for distant journeys, is use of AC at low temp settings because of our hot weather which kills MPG.
In the west and some other parts of the world with very cold weather, multiple cold starts kills MPG more (due to engine running rich for longer period at cold start due to cold weather). Thanks to the fact that hybrids warm up faster.

The difference at highway speeds might be small (depending on average highway speed) & is unnoticed to many, the difference actually exist.


Regards.

This looks like a hybrid

chuna1985:


Please stop using common sense for engineering explanations, ignore those sounds u hear wen u on fridge as well.....Lol.

An electric motor spins the coil rapidly @ a fixed pace n the coil inside the electric motor generates electrical energy from the mechanical energy generated (Energy conversion) Now no matter the number of electrical units u leave on, the coil can only dissipate what it Generates......U basically don't need more fuel to power the coil to carry more load.

Please don't browse for answers on this, u might meet people like u online n get wrong info. Ask any experienced mechanical or electrical engineer directly.

Or u can run the experiment urself. Get ah pass ma neighbour, put 1 litre of fuel on it, also on all appliances....... Repeat same with 1 litre with very things on, or u can off everything, The fuel will finish @ the same time (give or take some minutes)



Bro please, electricity from ur generator . borough about from coil, it has zero direct connection with fuel.

Na wa o.
Engineering has a long way to go in this part of the world.

Hello nairalanders,

The use of AC affects fuel consumption. The extent depends on whether one is doing city or highway driving. It increases consumption more when car is driven in the city.

Read about hybrid cars. Toyota hybrid economy mode works by reducing AC output, reducing throttle response.

It depends on the engine design too..... I wouldn't want to go into details of this.

Regards.

Put on several electrical loads and do a voltage drop test.
Check for parasitic drain.

Regards.

abatically:
A lot of things can be responsible. O2 sensors, injectors. Ecs, Tyre size, Tyre psi, bad thermostat or absence of thermostat, engine running rich due to spark plugs, coils, engine temperature not getting to operating temperature because fans have been connected directly and thermostat removed; catalytic converter, etc etc.

What engine size do u have and what mpg are u getting? Do u have a check engine light on, have u scanned the car?

In addition to this oga;
vacuum leak, weak fuel pump, bad fuel pressure regulator, dirty fuel/air filter, faulty knock sensor, exhaust leak, new tires(high rolling resistance), improperly aligned/unbalanced tires, faulty coolant temperature sensor, high engine oil viscousity/overguage, high transmission fluid viscousity/overguage, low octane fuel(especially when knock sensor is faulty), unbalanced injectors, wrong spark plugs, sluggish/bad A/F / O2 sensor, faulty throttle position sensor, wrong ignition timing, valve faults, intake manifold crack, malfunctioning egr, malfunctioning pcv, misaligned pulleys, inadequate d.c battery voltage/corroded or aged electrical connections, clogged exhaust/gutted cat, transmission faults(stucking in lower gears for too long), bad ignition cables/weak ignition coils, driving style(harsh driving), faulty MAF/MAP sensor, bad roads. e still remain o..... I no remember others now.
note: some of the above mentioned do not cause drastic rise in fuel consumption.
Regards....

If you have changed the dampers (shocks) before, I guess the new ones are too soft for your vehicle's application, causing your spring to oscillate unnecessarily and causing stresses in the spring.
Note: Soft springs go with stiffer dampers and vice versa.

Get someone who can analyse datastreams as the vehicle might not throw codes.
Chech oxygen sensor, catalyst converter, MAF, coolant temp sensor, large vacuum leak, check timing. Please check if that engine is a sludged engine. Lastly, check accessory drive pulleys for proper installation.
Regards.

AutosBay:
Would suggest you call 08080272682 for inquiries they are into automobiles. Kind Regards.

Thanks oga.

Hello house. I need a toyota camry muscle 4 cylinders catalytic converters. The cast iron manifold and the smaller one. If I get an affordable price quote, I will need both A/F sensors and oxygen sensors. I will need O2 sensor spacers too. I will prefer a brand new converter, a good fairly used one will be okay too.

The cat has been hollowed out and the car with vvt-i consumes fuel alot most likely due to "over-scavenging".
It also idles high at about 1,350 rpm & lacks power.

Car has been scanned and has "bank 1 sensor 2 voltage low".

It's a camry hybrid.

I will appreciate inputs in this regard.

GAZZUZZ:
Called someone yesterday about your engine, he said he saw a hybrid engine sitting in a warehouse in ladipo (toyota) but not sure if its 2az, or v6 , if I have the time ill go take a look at it.

Many thanks!

lomomike:


Zuba guys give warranty of between 2-7 days on engines. Is recommend you bring it in if you have any trusted person in Abuja. If a Zuba seller give you a defective engine, it is easier to send it back same day, get your cash and search else where rather than waiting till next day before trying to get a refund or a swap.

Shine your eyes for there make them no scam you. I'll ask someone (not a zuba part seller) about the price of the engine and let you know

You have been wonderful thus far.... I am anxiously awaiting your findings on price.

lomomike:


Enter into Abuja, get a very good mechanic to escort you to Zuba spareparts sellers where you can purchase the engine and install it.

Tell the mechanic the hybrid power system is very high voltage and he shouldn't 'kazeemize' the system.

Thanks man!
I will go all the way to Zuba from kwara because of this. I hope the engine will be readily available there.
All these contributions have been useful to me so far.

lomomike:


Where's your location?

kogi state. I am frequent at Ilorin, Benue, Abuja and Enugu also.
Regards.

chucky234:
Op don't even think of taking this path, just take Siena's advice and get yourself a replacement engine.
Ignore this advice at your peril.

Thanks.... I am in dire need of advice on how to get a replacement engine ASAP.

chucky234:
Op don't even think of taking this path, just take Siena's advice and get yourself a replacement engine.
Ignore this advice at your peril.

Thanks.... but I am in dire need of advice on how to get a replacement engine.

GAZZUZZ:
Regular 2az engine + compatible transmission, engine harness, engine ecm.

With this you go back to a regular gasoline.

Looking at roughly 500k.

You can sell your hybrid parts very (valuable)

Its a suggestion. But ill lookout for your engine.

Many thanks.... I will look into this. Please as promised, help lookout for the engine.

I appreciate all inputs. God bless!
@ Sienna/all: Please, how can I get a replacement engine and at what cost? I have made up my mind to get one.
Regards......

GAZZUZZ:


Since its an Atkinson Cycle engine, my suggestion is to buy half a regular 2Az engine and bolt in your Atkinson Cycle Head.

Thanks alot man! Do you have idea of cost and where I can easily get a good one?

@ Sienna

I do appreciate your response.
The engine is knocking and overheating seriously. The oil in it was seriously diluted with petrol and there was melted metals found when the buttom oil pan was removed.
Spark plugs and two ignition coils were bad.
Oil, ignition coils, coolant, spark plugs have been replaced but it seems that damage had been done to the engine's internal component(s).
I suspect the crankshaft, metals and bearings, as the engine load at idle is close to 60% (Shown on OBD II scanner).
please advise..... should I rework or get a used engine? How can I get one and at what cost?

Regards.

Dear all,
please assist.
Regards.

But it is obvious that these monkeys are not blacks....

I just like your honesty. I wish Kogi is close, I would have bought your car. I would have worked on its electrical system by myself.
Once again, your rare honesty deserves commendation.

Crankshaft position sensor, fuel pump, fuel pressure regulator, throttle position sensor, fuel pump relay, engine electronics relay, air leak, MAP/MAF.

PhockPhockMan:
http://www.vanguardngr.com/2015/03/mock-poll-exposes-card-readers-flaws/

Na wa o. Employ competent graduates, they will not but rather empower relatives. As per the batteries, the machines are not supposed to be put to lengthy use when they are commissioned unless they are fully recharged.

PhockPhockMan:
http://www.vanguardngr.com/2015/03/mock-poll-exposes-card-readers-flaws/

Na wa o. Employ competent graduates, they will not but rather empower relatives. As per the batteries, the machines are not supposed to be put to lengthy use when they are commissioned unless the are fully recharged.

valarinz:
Hello

My 2002 Volvo v70 automatic has some issues:

Hard starting:, it takes two times to get the car started, and sometimes when the engine is hot this doesn't happen

Slow acceleration: it takes time for the car to get going despite pressing hard on the pedal, and when it picks finally and struggles through the first and second gear, the movement becomes smoother

Hard to pick up while using ac: when the ac is on, the car seems heavier for the engine and accelerates more slowly

Please oga GAZZUZZ, any ideas on what might be the issue

many thing can cause the problem. I don't know where to start from. Fuel pump.... fuel Pressure regulator. .... fuel line leakage...... over retarded timing..... crankshaft position sensor..... wrong operating temp (bad coolant temperature sensor, thermostat, bad fan operation. ...).... air leaks..... MAF and/or MAP sensor...... faulty or blocked injector nozzles. ..... misfire due to faulty ignition cable/coil/spark plug.....bad EGR.....faulty valves....... engine with bad compression.... fouled engine oil...... engine running rich (bad operating temp, FPR, leaky injector, bad CTS e.t.c) and others........

If you have the minor things checked and they are okay, it's likely your throttle position sensor from your description of poor acceleration and AC dragging down engine power.
BR.

captalex:


But The Mechanic insists that the overboiling of the water in the radiator is because of the thermostat in the 99 camry.

Truely, the thermostat can do that when it is stuck closed. The ideal solution is replacement and not removal.
Also note that bad radiator pressure cap can cause it.
Always use radiator coolant solution rather than water. it has higher boiling point.
BR.