Quote:
Originally Posted by a2j
so was anything done with coil packs or wires?
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yes, replaced
-Coil packs
-PTU
-re-gap spark plugs
-spark plugs wires
-FPR
-ECU
I believe I found the problem, is something related with FUEL, when I just start the car (at idle) Im getting a 11.x A/F ratio with a 38psi of fuel pressure and 13.x volts to the pump. after few minutes (warms up) the fuel pressure drops to 20 or bellow and start running lean, A/F ratio readings of 18.x plus.
what could be causing the Fuel Pressure to drop?
btw Im running a Walbro 255 lhp
External Fuel pump