Aumio

It's alright.

Thanks

In the meantime, I'll try to find my way out. 

No Problem. 

Thank You for your help.

If you can remember the next time you're on the computer please do post it here.

On 10/22/2018 at 12:23 AM, Barry said:

MAF sensor code is irrelevant in this case. It’s a symptom, not a cause. The wrong airflow from the throttle body is causing the MAF sensor to report a problem.

There’s a few possible causes for this.

The throttle stepper motor is faulty, the wiring to the throttle stepper motor is faulty, there is a loose wiring plug on the throttle stepper motor wiring or the most unlikely, the ecu is faulty. 

Because you can scan codes, I will assume you have some technical knowledge. 

The first thing you need to do is make sure the throttle body is clean. And I mean surgically clean. The tiniest bit of dirt can jam it. 

After cleaning, you need to use your computer to do the idle relearn procedure. Depending on your computer, it can be incredibly simple and is just a matter of following the instructions on screen. 

Then get someone to push the throttle pedal and see if their action correlates to the movement of the throttle butterfly  

If that doesn’t fix it you need to physically inspect the wiring loom for breaks. These could be anywhere. Especially where the loom rubs against something else. 

Check the connections. Both at the throttle body and throttle pedal. Contact cleaner spray is your friend.

Check the voltage at the plug connecting to the throttle body. If it’s good and goes up and down when the pedal is operated, there’s a good chance the stepper motor is faulty and needs replaced. Always check the wiring before spending money on components.

Remember that after touching anything on the system, cleaning, removing and refitting plugs etc, the idle relearn procedure is required. Especially on a Nissan. They are very sensitive to stuff like this. 

These are a few things you can try yourself which can fix it. If you aren’t competent, further investigation will require a proper technician. And I mean a proper technician, someone who actually knows about cars, not one of the cheap mechanics in rashidiya or Sharjah industrial area. 

If in any doubt, show this advice to your mechanic. Don’t accept ok ok for an answer. This is the proper process.

@Barry Could you please let me what you referred as idle relearning? 

An youtube video or article would be really helpful.

Thanks

Thank You so much @Barry

These really help.

By Idle relearning did you mean these steps?

Hello everyone,

I finally figured out it's the Fault Code to P1122 mostly with an OBD scanner. (Throttle Control/Butterfly valve I guess).

It's a big area.

Any guess what could it actually be?

Sometimes, it's a P0100 (MAF sensor) as well though.

On 4/18/2017 at 11:55 AM, Rahimdad said:

@Aumio as per my experience I had similar issue of my LR Discovery loosing power when operating at optimum operating temperature. However switch it off for 30 minutes and start it up with cooler engine and it used to be fine. This problem also occurred when my petrol tank was half or less than half. The solution as it turned out was simple, the fuel pump for my Disco had gone bad. Try checking the fuel pump, that might solve your problem.

Thanks Man.

I'll do.

I am also having a feeling it's due to the Throttle Position Sensor.

I should have it checked as well.

What do you think?

Thanks, Treks.

No problem man.

I'll surely have them check.

But the thing is where we live it's hard to get a real expert on Nissan cars.

We have Toyotas all over.

Also, the issue is intermittent. So, It's hard for me to explain and them to figure out when it's on good condition.

I thought I'd get some advice as much as possible to assume and do the rest based on them which I got.

Thank you and everyone else for your help.

Thanks Barry. 

I'll have it checked.

Is there any possibility of that happening due to issues in CNG kit considering it happened for both CNG and Octane. 

I have started having the issue again after an year. 

I changed the air filter. Do you think this might cause it, by any chance? 

Thanks a lot @Gaurav

I've driven it more than 100kms by now. 

It's been 2 months I bought(used) it actually. 

I changed the oil filter after couple of days of purchase.

Still, some oil left in the bottle. 

"Also worth looking in changing all lubes slowly and make a track of all as a new start - coolant, brake oil, power steering fluid, gear oil, differential oil etc."

Changed brake oil (installed new brake pad and shoe), used water instead of coolant (might this be an issue? ), didn't change steering oil(will do) . 

Didn't change gear or other oils. 

I'll do. 

Thanks a lot man. It helps.

Thanks @Barry

I refueled it. But didn't fill up the tank entirely or close to that.

Should I try that?

Hi Guys,

The acceleration problem is gone now.

It's running real quick now. 

Both in Oil and CNG.

The car was sitting idle for 3 years. May be that was the issue with that.

It's running regularly now. This might have fixed that, I don't know.

What do you think? 

But I got another problem.

The engine shuts down intermittently. I can not tell when and how it happens. 

It does very rarely though. 

Can you guys shed some light what I should check about that?

@Rahimdad

@amid

@ethan

@harryd

Apology for tagging you if it disturbs you in anyways.

Thank You

6 minutes ago, Rahimdad said:

@Aumio If your car is running on Petrol and CNG than I am not in a good position to advise as I am not too familiar with that setup. I am having a Nissan Pathfinder R50 which is a 2001 model and is running without any issues. There was some race being lost when brakes were applied that it would almost stall, but that was due to timing going off when I replaced all the hose for the air intake. Once timing was set I did not face that problem again. You might want to check the fuel lines and hoses for the CNG to make sure there are no blockages.

 

Thank You. 

I'll check them.

4 minutes ago, Rahimdad said:

@Aumio as per my experience I had similar issue of my LR Discovery loosing power when operating at optimum operating temperature. However switch it off for 30 minutes and start it up with cooler engine and it used to be fine. This problem also occurred when my petrol tank was half or less than half. The solution as it turned out was simple, the fuel pump for my Disco had gone bad. Try checking the fuel pump, that might solve your problem.

 

@Rahimdad Thanks a lot for your insight. It helps.

However, My car have both Fuel and CNG. This happened for both.

Do you still think it's due to the Fuel Tank?

Also, I heard from a folk (A car garage owner, I'm not sure if he's a car genius or not) this is a common issue of Nissan cars.

And don't have any permanent solution.

What do you think since you seem to drive a Nissan car?

6 hours ago, harryd said:

For sure loose spark plug wire must have caused this, whenever happen again just tap on wires and see if it correct the issue then you need the new spark plug wires....

 

Thank you.

I'll try this if it happens next time.

Spark plugs are just installed very recently.

Thank You for your help Ethan

No smoke at all.

No overheat as well. The engine condition seems really good.

The temperature gauge was fine as well.

The car's condition is pretty well in comparison to the mileage.

Thanks a lot for your opinion.

2 minutes ago, amid said:

First things first bro:

• Car model?
• Car current kms?
• From how long you have this car?
• Car has service history?
• When and where last service done?

Then we can help you further better

1. Nissan Sunny 2003 Model. (JDM). B15

2. 140000

3. I just bought it used. It's here in Bangladesh from 2009.

4. Yeah. Spark plus has been changed and some wiring fixes. Throttle body has been changed as well recently.

5. Vehicle Solutions in Dhaka, Bangladesh.

Thank You for your swift reply.

I own a Nissan Sunny 2003 JDM Model (B15).

I'm not a car geek, so I'm afraid I may not be able to explain the issue well.

I'm recently having some sluggish Acceleration issue with the car.

For example one morning I wasn't getting any speed on the acceleration.

Looks like it's moving with the speed of lifting the break.

I shut it down and went home. After few hours I came back and started it.

All of a sudden it came back normal with a very fast acceleration.

Is that a Known issue with the car?

Have anyone experience this before?

If so, what might be some probable solution?

I'd be really helped.

Thank You