My okada too is emitting black smoke, wetin person no go hear for nairaland sef

PurestBoy:

My okada too is emitting black smoke, wetin person no go hear for nairaland sef

Wait a minute.
Whether Camry or Okada, are automobiles supposed to emit blood and not smoke?

Thank you the whole house, I was able to locate the O2 socket, got it plugged and that almost stopped the black smoke, but at high rpm or while trying to overtake with sudden acceleration i still observe some black smoke but disappear immediately.

Pls what is the best way to check the Airflow Meter, I removed the socket while the engine is on and it went off. What does that mean? I tried to start at that state, it did not start until i plugged it again.

All the contributions are appreciated.

@ Siena, i am still trying to locate where the coolant temperature sensor is located.
I believe i am going to solve the problem with the help of the people in this forum and others will learn.

I finally get to meet the poster, one on one, this afternoon. What a cool fellow! We spoke on the phone this morning, only for me to realise that my office is behind his at Zone 1. What a small world! From what i gathered from his explanation when we met, he has been able to get 95% issues with his car sorted out. I was impressed. Being man enough to deal with a problem or challenge can be very inspiring. I like such spirit.

Since the car stalled when the AFM (Air flow meter) plug was pulled out, the AFM should then be ok. If you hadnt noticed any change when the AFM plug was pulled out, then i would have suggested you swap the AFM with another and see if any change.

The CTS (Coolant Tempreature Sensor) should be located on one of the Cylinder heads, probably, close to water pump. The best way to test it is with Multimeter. You will need to check the resistance of the sensor with the Multimeter. Every sensor reading differs. You will have to find out from the workshop manual, if you have one, what your car model CTS should read. Normally, when you start the engine cold, it should read very low. But as the engine temperature rises (after about 10 mins of idling), the CTS should read high. Another way to test the working of the CTS is by starting the engine and allowing it to idle for 10 mins or the engine temp rises to operating temp. Then unplug the CTS wiring connector. As soon as its unpluged, the engine sound will change and will be hunting (revving high & low). It will go back to normal idle sound as soon as its plugged back. Its sounding low & high means that the ECU is no longer getting signal from the sensor, thereby it will start guessing, making injectors to inject excess fuel into the cylinders. But if you donot notice any change when you unplug the CTS while the engine is running, then the CTS is faulty. Goodluck.

Ikenna.

Ikenna, please help.
My QX4 Infinity 1999 does not move as fast as it used to and jerks and the plugs are showing black carbon deposit as well as the exhaust too. I have changed the plugs, fuel pump and filter, air flow meter, distributor and the problem persists. The odometer goes below one when I stop the car as if it wants to quench and goes up again. Consumes more fuel than usual. Please can anyone help me on how to get this problem solved as I have tried a full scan which detected air flow meter. I have changed it but the problem persists.

@ KOMBE

Read from the begining of these thread. Every info you need to fix the Injection issue with your car has been discussed here. Goodluck.

Ikenna.

@OP

Like Siena said, since you've reconnected your O2 sensor, the check engine light will still be on, it won't go immediately uless you reset it.

This means keep driving the car, it will take a couple of cycles for the light to go off.

Like an analogy I previously gave, imagine having a wound on you leg and limping from the pain, even when the wound is healed you might still limp for a while before your body readjusts to normal stance and that is what your engine is doing now.

If there is still anything wrong your check engine light will stay on.

Try this on a clear road, it will help reset system.

With fuel tank @1/2 or more and engine warm, gently accelerate to ~90kmph for 5 minutes then decelerate by taking your foot off accelerator(donot use brakes) until you get to 40kmph for ~30secs. Try it 3 times

I have to give it to Ikenna, We've all seen how much he has learnt in a couple of weeks just by getting his hand dirty.

Only he can guess how much in thousands he has saved, and trust me if you do what he did to get all the available information online those N100k-N250k many are using to buy ECU, trans, and engines would have been N10k max. By this time next year Siena will be dethroned by Ikenna3in1

I was looking for a huge and elderly person when Ikenna told me he was in front of my office. Surprisingly, he is slim and youthful like me very shy and down to earth. He is more intelligent while he speaks than what we read from him here. The first time i met a Nairalander one on one.

Yes, the check engine light is still on, i will drive it for sometime and feed back the forum whatever i observe.

Thank you every body! the car runs smooth and better now. I feel like driving it to Ibadan for a friend's wedding tomorrow but it is under restriction for now, guess the reason- CUSTOM PAPER.

Fixed?

No MIL(check engine light)

Auto experts,

I drive a Hyundai Sonata 2002.

I normally warm my car up for 10 minutes before driving off.  I do this because I noticed the car doesn't drag when I hit the road unlike when I just start it up and drive off.  Is that not a good idea for a Hyundai Sonata 2002?

Also, the same car sort off slows down or drags (again) when I'm driving up a hill or slope. I know most cars do this (as per the laws of physics) but mine is too obvious.  I have driven other cars (belonging to my friends) and theirs don't drag when climbing a hill the way mine does.

My mileage is over 145k, could that be a cause to the problem?

Awaiting replies.

Thanks.

Thanks Siena.

What do you think causes the drop in speed when climbing a hill or slope?

Thanks Siena

Hello wonderful nairalanders,
I must confess that I've been learning a lot from ur contributions here, but this issue of black smoke emitting from my Camry 99 v4 exhaust still persists even after changing 3 different Air flow metres on it. One of them gives white smoke, but hesitates on high speed. The ones that gave black smoke don't hesitate on high speed. In both cases, my fuel suffers as they consume fuel like hell. I just don't know what to do again. Can anyone help me with a guide on getting a manual for v4 Camry 99 model as well as a link to getting a scanning kit? I need to give it a trial with these on my own. One has really spent a lot on this issue without success yet. I need your help pls. Thanks.Hello wonderful nairalanders,
I must confess that I've been learning a lot from ur contributions here, but this issue of black smoke emitting from my Camry 99 v4 exhaust still persists even after changing 3 different Air flow metres on it. One of them gives white smoke, but hesitates on high speed. The ones that gave black smoke don't hesitate on high speed. In both cases, my fuel suffers as they consume fuel like hell. I just don't know what to do again. Can anyone help me with a guide on getting a manual for v4 Camry 99 model as well as a link to getting a scanning kit? I need to give it a trial with these on my own. One has really spent a lot on this issue without success yet. I need your help pls. Thanks.Hello wonderful nairalanders,
I must confess that I've been learning a lot from ur contributions here, but this issue of black smoke emitting from my Camry 99 v4 exhaust still persists even after changing 3 different Air flow metres on it. One of them gives white smoke, but hesitates on high speed. The ones that gave black smoke don't hesitate on high speed. In both cases, my fuel suffers as they consume fuel like hell. I just don't know what to do again. Can anyone help me with a guide on getting a manual for v4 Camry 99 model as well as a link to getting a scanning kit? I need to give it a trial with these on my own. One has really spent a lot on this issue without success yet. I need your help pls. Thanks.

The excessive black smoke emitting from your tail pipe suggest you have excessive fuel consumption,issues. what cld b responsible could b from the following:
1. faulty fuel regulator.
2. fuel pump that over pressurises
3. leaky exhaust system, and even intake manifolds.
4. excessively worn spark plugs
5. clogged air filter system
6. overdued engine oil service
7. ECU (brain box) faulty
Do not replace parts without carrying out tests on parts or components before replacement. Atleast dats what we do before parts replacements.
Best of wishes!