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Old 03-04-2010, 02:24 PM   #21
old_master
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Re: 97 Chevy s10 miss under load

Quote:
Originally Posted by metalman55 View Post
....switching the wires on the plugs made it idle horribly....
The reason it idled horribly is because you had the plug wires crossed. You need to swap entire plug wires from cylinder #1 & #2, not just at the spark plug end. If P0302 is set, the wire that is on cylinder #2 is faulty. If the P0301 still sets, move on and do the coil test.


Quote:
Originally Posted by metalman55 View Post
....im taking it to a shop monday to have the relearn procedure done, then it sounds like ill have to drive it around for a week or 2 unitl it learns it....
When the relearn procedure is performed correctly with a scan tool, the relearn is done immediately. Don't let him buffalo you into thinking you have to drive it around for the ECM learn it. That's the reason for the procedure, to force the ECM to relearn.
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