Checking Idle Speed

- D
- Dave
  
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posted
20 years ago

Mon, Mar 1, 2004 4:44 PM

1993 Saturn 1.9l dohc I have this old engine diagnostic meter that is supposed to hook up to the coil to check the RPMs. Is there someplace to hook this up? To check the idle speed. The Chilton's says I need to hook up a "IAC tester" and a "PDT scan tool to the ALDL connector". Can please someone please give me a break? Dave

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- L
- Lane
  
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posted
20 years ago

Mon, Mar 1, 2004 11:06 PM

If your Chilton manual has wiring diagrams, look for the lead for tach/rpm from the underhood ignition module to the PCM. For some reason, I believe it's a white wire. This is off of memory from a while ago, so someone please correct me if I'm wrong.

Lane [ l a n e @ p a i r . c o m ]

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