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Re: 99 4.3 Rough Idle, Low Temp, Bad Gas Mileage
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Originally Posted by dr_lee29
Thanks for the help!
Its an X engine.
I've checked the fuses in the fuse box located on the drivers side door these all look fine, is there another set of fuses that would run the diagnostic port? Are you saying the cigar lighter fuse runs the diagnostic connector? Or I can run power to the port by jumping a line from the cigar lighter to pin 16? If so, where can I get a diagram of the port to find pin 16? Again, I really appreciate the help!
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http://www.troublecodes.net/OBD2/
Fuse 2 cigar lighter on end of dash.
Put a test light on it and check for 12 volts both sides.
Yes you can run a fused jumper wire to pin 16 if all else fails.
Get power on it and check codes and then clear codes and see what comes back.
Post back code no.
Good Luck
Good Luck.
__________________
Remember proper testing gives us the answer to many problems.
MT
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