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#2
09-07-2003, 08:31 PM
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what year,motor etc.more info man.And i don't think those TPS are adjustable on bonns;atleast not on my '95.
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1999 GMC 3500 SRW 4x4 7.4 4:10's FF G80 2004 Chevrolet Impala LS 3800 "ALWAYS"......  full synthetic!!!
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#4
09-09-2003, 07:27 AM
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I'm doing this off the top of my head.
There are 3 wires to the TPS sensor. gray is your 5v reference wire black is the sensor ground blue is the sensor signal wire to the ecm If you back probe the blue wire( with a DVM to ground) with the key on/engine off, you should get a reading between .38 and .42 volts. That is the proper voltage at closed throttle.
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