running +24% l.t fuel trim...no light on still
#1
running +24% l.t fuel trim...no light on still
Need some help guys. For the last few months I've always thought the car wasn't running like i should. Checked a scanner here at my work and the short term fuel trim was +10-13 2 months ago. Took to ford and.was told nothing was wrong. And to wait for a light to come on. Fast forward to today and my shop foreman and I just checked the live data abs the long term fuel trim is +24% and the short term is -2% is it a vaccum leak or something else? Car is tuned by steeda and runs good just feel like its not running what ot can. Esp down in the low rpms. and I checked the spark plugs they are all clean and look alike. Even the #8. So thr motor is good just not making the power it should bc its throwing extra fuel at it. Thanks for any help or suggestions you guys have.
Last edited by shoeys08dkcandygt; 04-26-2012 at 01:15 PM.
#4
Need some help guys. For the last few months I've always thought the car wasn't running like i should. Checked a scanner here at my work and the short term fuel trim was +10-13 2 months ago. Took to ford and.was told nothing was wrong. And to wait for a light to come on. Fast forward to today and my shop foreman and I just checked the live data abs the long term fuel trim is +24% and the short term is -2% is it a vaccum leak or something else? Car is tuned by steeda and runs good just feel like its not running what ot can. Esp down in the low rpms. and I checked the spark plugs they are all clean and look alike. Even the #8. So thr motor is good just not making the power it should bc its throwing extra fuel at it. Thanks for any help or suggestions you guys have.
Had you datalogged your car at all with the stock airbox? If your fuel trims are off with the stock airbox and stock tune then something is wrong, but if it falls within the range that it wont set off the check engine light the Ford dealer will probably not do anything for you.
We can resend you a tune we know is right for a properly running car. If it is still off you should datalog the car with the stock airbox and see if that is off too.
Ideally trims should be + or - 5% or better.
#5
B1 is at +18% and b2 is at +10%. I saw it about 2months ago and the positive numbers were only in the short term and hadn't gone to long term yet. And that was with the stock airbox on it. It has felt off since then. Gus I called u from the dealership bc u were the first to say that I had a o2 sensor that was slow.to respond which it was and ford told me 'no problem found and to bring it back when a light came on. Still no light to this day but it doesn't seem to pull like it should. Esp tuned. Gus can I call u at steeda tomorrow and talk about the tune? Are you busy tomorrow?
Last edited by shoeys08dkcandygt; 04-26-2012 at 05:03 PM.
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