hey guys, hoping for a little help. I have been through the surging idle checklist many times but can't seem to solve my problem. I hit a wall and hoping someone has had the same issue and can lead me in the right direction.
my car has a slight idle surge when it gets warm. when I first start it idles great, sounds great and sits right at 650-700 rpm's. when it gets warm I get a slight idle surge, nothing extreme but it will surge a little then settle then surge a little etc. I have done a lot of things in the idle checklist but it is still going on. The only codes I have are 31 and 95. I have no egr (I believe that would trigger code 31) and I did not run the fuel relay line to the cpu when I did a mass air conversion (code 95). KOER I get 94, 44 and 31. I believe 94 and 44 is because i have gt40p heads and I capped all those vacuum lines. My tps is set at .7. I cleaned my iac valve in a bucket of carburetor cleaner. I have gt 40p heads and intake and I capped all the loose vacuum hoses. I have a 3g alt with an additional ground wire to block and to the ground location under the washer fluid fill bottle.
Does anyone have any advice on what else I can do? I have a b cam and I am wondering if that might be the problem? Like I said when my engine is cold it idles great and sound great. but when it is warm its starts to surge slightly. Oh yeah, It has new 02 sensors too. I also wired in the vss signal when I did the maf conversion.
Sorry for the shotgun approach to the list of things I did.
Thanks in advance!
my car has a slight idle surge when it gets warm. when I first start it idles great, sounds great and sits right at 650-700 rpm's. when it gets warm I get a slight idle surge, nothing extreme but it will surge a little then settle then surge a little etc. I have done a lot of things in the idle checklist but it is still going on. The only codes I have are 31 and 95. I have no egr (I believe that would trigger code 31) and I did not run the fuel relay line to the cpu when I did a mass air conversion (code 95). KOER I get 94, 44 and 31. I believe 94 and 44 is because i have gt40p heads and I capped all those vacuum lines. My tps is set at .7. I cleaned my iac valve in a bucket of carburetor cleaner. I have gt 40p heads and intake and I capped all the loose vacuum hoses. I have a 3g alt with an additional ground wire to block and to the ground location under the washer fluid fill bottle.
Does anyone have any advice on what else I can do? I have a b cam and I am wondering if that might be the problem? Like I said when my engine is cold it idles great and sound great. but when it is warm its starts to surge slightly. Oh yeah, It has new 02 sensors too. I also wired in the vss signal when I did the maf conversion.
Sorry for the shotgun approach to the list of things I did.
Thanks in advance!