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Old 03-02-2016, 06:56 PM   #11
Nodnarb76
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Join Date: May 2013
Location: Mississippi
Posts: 501
Re: 454 smog pump delete

Quote:
Originally Posted by Chevy3+3 View Post
Sweet! DO you know what that thing is that the wire was connected to? Only reason I ask is because if it doesn't change anything when its unplugged then it probably didn't do anything to start with. just seems wierd
Looks like it got a signal from the PCM to open/close. I recently removed the whole TBI harness and traced the plug back to the PCM. I had no check engine lights when I left it unplugged. Looks like it
just tells it to open or close, and does not get any info back to the pcm.
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