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BR3W CITY · 03-19-2018, 09:13 PM

Case is supposed to internally ground, but its a known issue when addressing grounding problems. Run a hard ground off the ecm case (just hold a wire to it and try) and see if it helps.

I'd also make sure you have the little mesh ground strap off the head, as they get lost in swaps sometimes and have been known to cause issues with things like injectors.

03-19-2018, 09:13 PM	#3
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: PCM is not grounding fans properly Case is supposed to internally ground, but its a known issue when addressing grounding problems. Run a hard ground off the ecm case (just hold a wire to it and try) and see if it helps. I'd also make sure you have the little mesh ground strap off the head, as they get lost in swaps sometimes and have been known to cause issues with things like injectors. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD