Thread: Rich at idle
View Single Post
Old 01-15-2022, 02:38 PM   #1
Scooby Newbie
Member#: 524861
Join Date: Jun 2021
Default Rich at idle

Been having this issue for a while now
Car starts fine, but once it enters CL, the AFR will sit at 12-13 at IDLE, with -25% afr learning. Then it will bog super lean, then super rich again. At WOT the car will throw a p0103 (MAF Circuit High Input, likely due to colder weather)

I replaced my O2, MAF and IAT sensors, checked for obvious fuel leaks and checked all grounds. Had whole intake system smoke tested. Flow tested and cleaned injectors along with new o-rings. Compression tested with new plugs, all numbers came back strong and consistent.

Only other things I suspect could be an exhaust leak or some hidden electrical issues.

Any input would be appreciated. Iím losing my mind and money.

Mod list (that pertains to this issue)
Aeromotive AFPR
Walbro 450 pump
DW hardwire kit
ID 1300cc
IAG braided fuel lines
Catless DP
Perrin 3in turbo inlet
* Registered users of the site do not see these ads.

Last edited by e_navarre; 03-18-2022 at 07:16 PM. Reason: Update
e_navarre is offline   Reply With Quote