car running lean

[ramair6]

hey guys my SES is on and is telling me that my car is running lean. what could cause this? I just changed my fuel pressure regulator, could that have any effect on it?

[UDLOSE98]

Re: car running lean

could be, how long ago did you replace it....also could be injectors, fuel filter, pump, etc

[ramair6]

Re: car running lean

fpr was replaced no more than a week ago and fuel filter is about a month old. does oxygen sensors affect this problem?

[BLLDOGG]

Re: car running lean

yes.. do you have a reason to this they are the problem? read your manual that you were suppose to have to join this site about running lean

[black95maro]

Re: car running lean

is ur pcv valve going back into ur intake or do you even have it because i heard if u just have it but not going back into ur intake or just having the hole it was in it will run lean

[BLLDOGG]

Re: car running lean

your correct because the computer compensates for the fuel vapors that are suppose to be recirculating back into the intake from the crankcase