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Old 09-24-2005   #8
Shane@DBPerformance
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Location: On the dyno
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Re: Tunning help please

What exactly does your fuel pressure do? Under WOT you should get base fuel pressure + boost level for a pressure reading and it shouldn't drop at all. If it drops at all and the boost isn't dropping with it, then you have a fuel pump/fuel line/fuel filter problem.

Another possibility is that you are hitting the injector pulse width cap with your 850s and modded ECU. Did Eric take out the cap limit in the EPROM that he made for you?

Also, if it's a 90, then tend to get lower O2 readings than the 91-94 cars for some reason. But if it read higher before and it's knocking then it's probably not just that.

What gas and how boost are you running?
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