ISC Testing

[deez]

I have been having issues with idle and stumbling and/or stalling, so I checked the ISC. The only test I could find online was for a non turbo, but they said it should test 28-33 ohms between pins. I got 36 ohms on all pins. Now, is it out of spec or do the turbo cars test out that way. Also when digging around back there I found the EGR vacuum line disconnected. Hmmm...wonder if that was an issue /ubbthreads/images/graemlins/smile.gif

 

[Terry Posten]

36ohms is just fine.

Do a boost leak test.

Even small throttle shaft seal leaks can cause a bad idle.