Should there be resistance on the ic wire from pcm to icm? And if so how much? And if not, what would couse there to be?
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97 yukon 5.7l starts then dies right away, have spark and fuel and timed
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Popular Answer
ziptie12on Dec 22, 2014
What is fuel pressure doing from key on engine running to 'start' then after it stalls? IF you answer , give PSI readings from a gauge , not just a yes it's good!...Ignition switch failure ... next thought. other guesses which can be tested/verified before spending money on wrong parts...Mass air flow meter(or leaks in intake hoses) and idle air control valve.
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My fuel stays at 60psi.no drop in psi. Ignition switch has been replaced. But some thing hapends the the conectshon with the turn signal switch after a few mounths. My blinkers would stop working at the dash and the bulbs but my haserds still work. I put my old switch in and it works. And i don't know how to test maf meter or iac valve but I'll look into it and get back to u.
use scanner to see live data values on maf & iac.