On a 16197427 $0D stock truck. Has had MPFI PCM and memcal mod done. WIth key on engine off, What would make fuel pump on time change from 2 seconds to 15+ seconds? Does fuel pump run constant in LHM?
On a 16197427 $0D stock truck. Has had MPFI PCM and memcal mod done. WIth key on engine off, What would make fuel pump on time change from 2 seconds to 15+ seconds? Does fuel pump run constant in LHM?
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
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