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Old 08-29-2017, 04:17 PM   #5735
snj8198
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Join Date: Feb 2007
Location: Star Valley, WY
Posts: 2,038
Re: What did you do to your truck today? Chapter II

Drove it. I've been having issues with the truck shutting down. Surprisingly, it is RPM noise from the MSD ignition box affecting the pickup wire for the FiTech efi system. I tore my wiring harness apart, separated the wiring between the efi and ignition and now it's running well again. Very interesting but frustrating too.
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1971 GMC Longbox. Full Roller Stroker 489 w/ FiTech EFI, Chris Straub Cam/NV4500/205/D60/14B w. Grizzly Locker and 4.11's. 2" Lift on 33's
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