Help: Evo IX running lean, stock MAF/Injectors - Page 3

project_skyline · Nov 7, 2009, 11:05 AM

I was thinking if it was a pump issue and you had the injectors in the fuel map maxed out then duty cycle would reflect that no?

Too bad you dont have FP gauge then you could see fuel pressure in boost at the rail.

jcsbanks · Nov 7, 2009, 06:09 PM

Quote:

Originally Posted by crcain

JC thank's for listening to this diatribe

Yes we did change MAF, regulator, fuel pump, vacuum line and vacuum source to regulator.

Yes he is running an HKS mushroom filter with an HKS aluminum intake pipe.

I have seen >10% AFR errors with HKS cones. MAF sensor under-reads.

**MR Turco** · Nov 7, 2009, 11:35 PM

got to play with the locals car i have been having issues with. swapped MAFs, nothing. Swapped pumps, nothing. He is going to order a new FPR but i am not hopeful. Not sure what the hell is going on. I have to log IDCs next time he is here but i can't understand why he would be out of injector at 330whp.