Originally Posted by SRpowrd 
Ok so a month ago or so. I had my ecu retuned from JWT. Went from 50lb injectors to 72lb'ers and from 9:5/1 comp ratio to 8:5/1. I installed a new FPR (china made) and new braided lines and AN fittings. I didn't change anything else. Before the car would pull a consistant 11.4-11.6 AFR at WOT. Now i hit it and it falls to 11.4 ish and then it starts to climb to 12.5-12.8 when it gets in the upper rpm's. So found that the FPR I installed wasn't making the right fuel pressure. CHINA JUNK. At 15psi it was only making 3.75 bar. I can set it to 3 bar with the vac line off. But it should make roughly 4 bar @ 15psi. So I went to Summit Racing last night and bought an Aeromotive FPR. Installed it and now it makes 4 bar fuel pressure @ 15psi. The AF's are better now but still climbing into the low 12's. 12.5 was about the highest. So I bought a new Walbro when I picked up the FPR. So I put that in this morning. I haven't drove it on the highway yet to see, but the small ride I took it still seemed to be climbing into the 12's. I have boost leak checked with intake pipe on and no leaks. I put a new fuel filter in even though it didn't need it. I did all this before the new FPR and pump. So I am running out of ideas. Please help. Any info is appreciated. Thanks guys
o.k. is the setup blow thru? and what maf?
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