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8upZR1 · 07-25-2007

The fuel pressure is constant at around 40 psi and then when I give it throttle it goes up to the 50's maybe low 60's. At WOT with the haibec chip my A/F meter says rich, with the GM chip it is closer to stoich, but still on the rich side. The problem is no longer intermittent, now it is a full time affair. I have tried swapping ecu's, no luck. I was thinking that maybe it is the wiring harness or a pin connection. As of yet I have found none. In the past I have looked at the igntion module to ECU connection but everything looks good and all wires are sending good signals as far as I can tell. I plan on checking this connection carefully tomorrow. Maybe I will find something.

07-25-2007	#6
8upZR1 Join Date: Jun 2006 Location: Thunderbolt, Ga. Posts: 253	Re: A serious problem The fuel pressure is constant at around 40 psi and then when I give it throttle it goes up to the 50's maybe low 60's. At WOT with the haibec chip my A/F meter says rich, with the GM chip it is closer to stoich, but still on the rich side. The problem is no longer intermittent, now it is a full time affair. I have tried swapping ecu's, no luck. I was thinking that maybe it is the wiring harness or a pin connection. As of yet I have found none. In the past I have looked at the igntion module to ECU connection but everything looks good and all wires are sending good signals as far as I can tell. I plan on checking this connection carefully tomorrow. Maybe I will find something.