Senior Member
hey guys,
After modifying the engine with 8 rib belt and pulleys, a 10% od crankshaft pulley , and a smaller pulley on the supercharger, I keep getting the random misfire code. Ive not retuned with Marty yet.. soon.
Could the larger crank pulley w/o a tune be the cause of the code?
Ive not heard or felt a misfire.
Thanks
-KK
'03 Silver Birch. Rebuilt 4.L 32V DOHC, V7-JT blower w/ADTR racing supercharger kit, Shift kit in transmission, stainless works long pipes and cat backs, Ridetech coil-overs front, shocks in back (ADTR kit). Rebuilt calipers, upgraded front rotors, OEM Mercury wheels, [boost, oil P, WB fuel/air, and fuel pressure] gauges. Build duration was Dec 2019 to Mar 2022. Upgraded to 8 rib belt to reduce slip, July-Nov '23. Car broke during tune with Marty Feb '24. Running again May '24. Still needs tune.
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