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Pampered-Z · 09-25-2007, 08:17 AM

24 - VSS circuit

36 - OptiSpark high resolution signal faulty.

OK, did some checking around. Those with the quad drive errors means you're most likely having some type of electrical gremlin.

Check all the wires to the ignition module and make sure the ground wire is good and all the bolts are tight. Couple people had this problem and it turned out to be the ignition switch or ignition module. I would look at those before replacing the ECM or Opti.

One way to do a simple test if the VSS is bad, if your speed-o or cruise control doesn't work the VSS is bad. if both works you're getting a faulty code caused by something else.

09-25-2007, 08:17 AM	#7
Pampered-Z Sliderule / Moderator Join Date: Oct 2004 Location: Catawissa PA Posts: 2,294 iTrader: (1)	24 - VSS circuit 36 - OptiSpark high resolution signal faulty. OK, did some checking around. Those with the quad drive errors means you're most likely having some type of electrical gremlin. Check all the wires to the ignition module and make sure the ground wire is good and all the bolts are tight. Couple people had this problem and it turned out to be the ignition switch or ignition module. I would look at those before replacing the ECM or Opti. One way to do a simple test if the VSS is bad, if your speed-o or cruise control doesn't work the VSS is bad. if both works you're getting a faulty code caused by something else. __________________ 93Z M6 Black: The 385 Lives! Supercharged, 3-core front mount intercooler, GTP heads, 3:73's, Street twin clutch, Jethot Longtubes, Mufflex 4" catback/spintech, S+W cage, Spohn Suspenion, Yada Yada Yada 1) Build it 2) Race it 3) Break it 4) Repeat!!!