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How Much Fuel!

PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

How Much Fuel!

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Old

Mar 9, 2006 | 05:21 PM

#1

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How Much Fuel!

I've scaled tables as much as a 160% and have seen little or no changes in AFR. Supercharged car with 12#'s, wideband, speed density. Car is still lean. Any ideas as to what is going on any help would be greatly appreciated.

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Mar 9, 2006 | 05:40 PM

#2

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post a bin/tun/hpt file...and what "tables" you've scaled there are several tables that affect fueling...are you running an fmu? are you running a 2 bar tune? are your injectors maxing out? Info is helpful

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Mar 9, 2006 | 05:44 PM

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You probably have to do your tuning in the back-up VE table instead of the primary.

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Mar 9, 2006 | 05:46 PM

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No fmu, running sumped tank with aeoromotive 1000 inline pump, 42lb svt injectors, @70 psi fuel pressure. i am referring to the ve tables.

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Mar 9, 2006 | 07:05 PM

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then you probably forgot to turn off MAF, or it failed to fail over

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