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Topic: ongoing saga almost complete

in Forum: All Vettes Discussion


ongoing saga almost complete

Posted: 8/18/07 5:40am Message 1 of 1
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Lanoka Harbor, NJ - USA
Joined: 12/21/2006
Posts: 828
Vette(s): 1975 metallic blue coupe with t-tops,L48, t/t steering, black leather interior. 1990 L98, white/red leather interior, auto,a/c
well the 90 is running folks. map sensor voltage was high and installed another new one. no change. i had the code for the oxygen sensor come on for the running rich. after checking map sensor with a vacuum guage and determined it was working, had a new oxygen sensor here so i figured i replace it . while doing that i checked for voltage the way the manual said to and no voltage. manual says replace ecm.

i already did with a rebuilt from gm but also bought a used one off of ebay. so last night i decided to swap it out and installed the used one. i couldn't believe it -- the map sensor is reading acceptable voltage (5.10 down to 3.8) and the tps went from 1'52 down to .62.

off i go now to gm and get a replacement ecm for a defective one. hard enough doing these computer controlled cars but when you get defective parts to boot it's enough to drive you insane.



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THE DYNAMIC DUO


in Forum: All Vettes Discussion


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