LS1TECH - Camaro and Firebird Forum Discussion

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- PCM Diagnostics & Tuning (https://ls1tech.com/forums/pcm-diagnostics-tuning-7/)

- - pcm guru's (https://ls1tech.com/forums/pcm-diagnostics-tuning/591901-pcm-gurus.html)

68shortstep

Oct 14, 2006 07:25 AM

pcm guru's

is my pcm bad if im getting voltage out of the serial data line(key on)? and have resistance to ground (the key off)?
if it makes a diffrence its on a 95 buick 3.8l

GOaT Cheese

Oct 21, 2006 01:03 AM

PCM supplies voltage to data line. And resistance to ground is through internal PCM buss bar. You should see 5 volts, maybe 7, not 100% sure. As for he proper resistance value, dunno.

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