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Old 04-06-2010, 10:18 AM
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Re: been having serious problems with my 93 Jimmy 4.3 CPI

Quote:
Originally Posted by michaelcannon88 View Post
code 15 is thrown coolant temp censor, just replaced censor code still there after reset, overheated bulb in dash is good but doesnt turn on while starter turns, what could be the problem. btw temp guage works fine, and there is only 1 wire going to the censor and its green, wiring diagram in Haynes book said 2 wires are needed and 1 is yellow and other (ground) black. completely stumped on this 1 need help.

Also it got warmed up the past couple times and huge surge of power lasting several seconds to a full minute wanted to jump through my garage on its own.

Any ideas?
To start with you are working on the wrong sensor for code 15.
Code 15 is for a problem on 2 wire sensor to pcm.
Not tempt gauge.
The dash gauge has a one wire sensor?
Does you dash have gauge or hot light or both?

Explain the power surge?
Like engine speeding up on it own or fast idle?
Why are you running it in gear when testing or sitting in garage?
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