So I have a 03 mach 1 built motor with a f1a @ 20psi. I am fighting it constantly trying to get tune finished up do to a lean issue around 5k @ wot. I dont understand why it keeps going lean....car has 3 gss342 pumps, 10an feed, 8an return, aeromotive rails, 80lb injectors, meth injection. I would think fuel supply wouldnt be an issue. Any input would be greatly appreciated to help me resolve this issue!!
Lean issue at wot
- Thread starter kevin_04svt
- Start date
Are you tuning this yourself? What have you changed since the lean issue started?
No im having a shop tune it...I just put a new alternator on it cause old one was bad....still same issue
What do the logs say? Duty cycle of the pumps and injectors? Maf counts, etc? Could be as simple as maf transfer needs tweaking, but I assume your tuner has that nailed down.
man i wish i knew...its probably something in the tune cause im willing to bet ive got plenty of fuel
Can't really diagnose without knowing details of the datalogs.
Yea we need alot more information here if were going to help.
Logs, data, pressures, AFR ect.
Logs, data, pressures, AFR ect.
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