LT1-LT4 Modifications 1993-97 Gen II Small Block V8

having trouble connecting to pcm

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Old 07-26-2013, 06:44 PM
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http://i1286.photobucket.com/albums/...ps5dec401f.jpg

what do these 2 wires go to? my only idea was the AIR pump which was deleted. this is drivers side front of the engine, you can see the coil

http://i1286.photobucket.com/albums/...ps258ad44d.jpg

my ground strap is frayed but not cut, i'd imagine its still working just fine tho?
Old 07-26-2013, 06:54 PM
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Check the grounds on the rear of the heads.
Old 07-27-2013, 07:46 AM
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Originally Posted by englundjd
what do these 2 wires go to? my only idea was the AIR pump which was deleted. this is drivers side front of the engine, you can see the coil
Those look to be ground wires if I'm not mistaken. There should be three different ring terminals that ground out through the stud/bolt.
my ground strap is frayed but not cut, i'd imagine its still working just fine tho?
Should be replaced.
Originally Posted by FASTFATBOY
Check the grounds on the rear of the heads.
What ground wires are on the back of the heads?
Old 07-27-2013, 09:06 AM
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Was thinking LS, not LT.

Make sure none of the wires are pushed out of the ALDL connector.
Old 07-27-2013, 11:28 AM
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Originally Posted by SS RRR
Those look to be ground wires if I'm not mistaken. There should be three different ring terminals that ground out through the stud/bolt. now that you mention that... there was 2 extra rings on that stud when i replaced the coil, it made me wonder a little. ill reattach them

Should be replaced. I have some 8 guage ground wire around here somewhere is that overkill enough?

What ground wires are on the back of the heads?
the aldl port is in decent shape, i cleaned it with electrical cleaner and put some dielectric grease on the pins.
Old 07-27-2013, 11:43 AM
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Forgot to mention the one of the three is the ground strap. You can do 8 gauge if you want, but that seems a bit cumbersome. Grand straps can be had for cheap.
http://shop.advanceautoparts.com/web...ontent=5701635
Old 07-28-2013, 12:29 AM
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well i pulled the ground strap off and its not frayed it just had crap on it and looked frayed from where i was standing. It is showing quite a bit of corrosion tho so i think im going to go ahead and replace it, i picked up some 10 gauge wire and i will wire that in this week sometime but i doubt it's going to solve my issue with the aldl port



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