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        General >> Problems >> Long term and Short term Fuel Trims
        
(Message started by: nigelt on Jun 13^th, 2005, 12:47pm)

Title: Long term and Short term Fuel Trims
Post by nigelt on Jun 13^th, 2005, 12:47pm

Hi Guys,

I seem to be going round in circles with this one, and hope you may have some advice. I have been having trouble with the running of the car, missfire at light throttle, hesitation/starvation of air/fuel at times of gentle acceleration (worse when the air temp is cold) I have been lloking at LTFT and while at idle it was at 17-20% positive. Looking on this site I found that this could be an air leak or Fuel pressure regulator. So I finally bit the bullet and blocked up the EGR Valve ( as this can cause light throttle probs) and changed the FPR (not for a new one) now my LTFT is -5% but STFT is up at +20%

They all level out when driving at around 2000 rpm. I d**n sure I don't have an air leak... any Ideas guys I've been at it for months...

Nige :'(