High Negative Short Term And Long Term Fuel Trim All The Time, Edakun Help Me - Car Talk (2)

High Negative Short Term And Long Term Fuel Trim All The Time, Edakun Help Me - Car Talk (2) - Nairaland

Nairaland Forum › Nairaland General › Car Talk › High Negative Short Term And Long Term Fuel Trim All The Time, Edakun Help Me (8856 Views)

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Re: High Negative Short Term And Long Term Fuel Trim All The Time, Edakun Help Me by Aanumi16: 8:27pm On Oct 31, 2021

Kokomo:
Hey bro, I change where I buy fuel but I still get high negatve fuel trim

Why not check your MAF. In my case I used to have LTFT of - 25 to - 35 while STFT is always between - 0.8 to 1.6 throwing p0172. Cleaned the MAF and changed the MAF connector, my LTFT dropped to - 7.0% while STFT remained 0.8 to 1.6. Car is a Camry 09

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Re: High Negative Short Term And Long Term Fuel Trim All The Time, Edakun Help Me by calculation(m): 7:39pm On Nov 27, 2021

Op How far about your issue on LTFT & STFT? If resolve, how do achieve the solution ?

Re: High Negative Short Term And Long Term Fuel Trim All The Time, Edakun Help Me by Kokomo(op): 10:30am On Jun 28, 2022

calculation:
Op How far about your issue on LTFT & STFT? If resolve, how do achieve the solution ?

I live with it

Re: High Negative Short Term And Long Term Fuel Trim All The Time, Edakun Help Me by 9icetoo(m): 1:40pm On Jun 28, 2022

Kokomo:
Car Honda civic 2008

High Negative Short term and Long term fuel trim All the time, Edakun help me

But because the longterm native fuel trim hasn't crossed -25%, my ECU is yet to set a p0172 code, but my fuel consumption had been bad affected, before I do 34mpg average, now I do roughly 26mpg, same route to work

First things first, your idle rpm is too high.

What work did you do on the car?

Re: High Negative Short Term And Long Term Fuel Trim All The Time, Edakun Help Me by femarse: 5:34pm On Jun 28, 2022

I have same problem , high fuel consumption, my readin is different thou , honda accord 2000 4 plug auto

Any solution to this high fuel consumption, spark plug has been changed , injector serviced , change cold start , but the new one makes the vehichle sluggish alot , return the old one and vehicle moves ohk again , rpm at idle is largely unstable sometimes coming down to almost switching off and sometimes goes high at 1500 rpm

Re: High Negative Short Term And Long Term Fuel Trim All The Time, Edakun Help Me by dicksonadams(m): 6:20pm On Jun 28, 2022

femarse:
I have same problem , high fuel consumption, my readin is different thou , honda accord 2000 4 plug auto

Any solution to this high fuel consumption, spark plug has been changed , injector serviced , change cold start , but the new one makes the vehichle sluggish alot , return the old one and vehicle moves ohk again , rpm at idle is largely unstable sometimes coming down to almost switching off and sometimes goes high at 1500 rpm

You might have a leak along your intake

Re: High Negative Short Term And Long Term Fuel Trim All The Time, Edakun Help Me by JoeSef0(m): 9:02am On Nov 06, 2024

Hi everyone. Idk if this thread is still active.
I'm having the same issue. My Stft is almost at 30 while on idle. I get very bad gas milage mostly below 10mpg.
Car is an 06 Acura tsx. It has the same engine as the Honda accord 06.

I got a p2195 code once but it has never occured after that

dicksonadams:
You might have a leak along your intake

Re: High Negative Short Term And Long Term Fuel Trim All The Time, Edakun Help Me by calculation(m): 10:45am On Nov 06, 2024

JoeSef0:
Hi everyone. Idk if this thread is still active.
I'm having the same issue. My Stft is almost at 30 while on idle. I get very bad gas milage mostly below 10mpg.
Car is an 06 Acura tsx. It has the same engine as the Honda accord 06.

I got a p2195 code once but it has never occured after that

There is unmeter air intake, ie leak somewhere. Work on it and get improvements

Re: High Negative Short Term And Long Term Fuel Trim All The Time, Edakun Help Me by JoeSef0(m): 12:19am On Nov 07, 2024

I'm confused on how to even get started.
Technicians around me doesn't understand those details, explaining to them has always been a waste of time

calculation:
There is unmeter air intake, ie leak somewhere. Work on it and get improvements

Re: High Negative Short Term And Long Term Fuel Trim All The Time, Edakun Help Me by calculation(m): 5:58am On Nov 07, 2024

JoeSef0:
I'm confused on how to even get started.
Technicians around me doesn't understand those details, explaining to them has always been a waste of time

You will need to sit tight and be their guiding angle till you get result.

1 2 Reply

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