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2nd Generation
Misfire Diagnosing/Troubleshooting Advice?
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<blockquote data-quote="itzHypn0tic" data-source="post: 15964447" data-attributes="member: 190475"><p>I've cleared the codes and they do return, and it looks like I have bad heads/valves on those two cylinders... I'm not sure why the coil pack light is being triggered as I tested the cables with a multimeter and noid light and they seem to have good continuity from the PCM and to the coil packs. The coil packs themselves also seem to be working correctly even though they look rough and have minor cracks..</p><p></p><p>Pretty sure my intake valves may be burnt or bent as they only held 20psi with a leak down test (it was hard to hear exactly where the air was escaping, but I did not see any bubbling in the coolant...)</p><p></p><p>I also compression tested the engine to make sure and both cylinders held 0 pressure... I tested another cylinder to verify and it was near 150psi.</p><p></p><p>I pulled off the supercharger and lower intake last weekend and will be looking at the heads this weekend. The intercooler was disgusting and it looked like the previous owner sucked in tape or a plastic bag (not including the ton of oil).</p></blockquote><p></p>
[QUOTE="itzHypn0tic, post: 15964447, member: 190475"] I've cleared the codes and they do return, and it looks like I have bad heads/valves on those two cylinders... I'm not sure why the coil pack light is being triggered as I tested the cables with a multimeter and noid light and they seem to have good continuity from the PCM and to the coil packs. The coil packs themselves also seem to be working correctly even though they look rough and have minor cracks.. Pretty sure my intake valves may be burnt or bent as they only held 20psi with a leak down test (it was hard to hear exactly where the air was escaping, but I did not see any bubbling in the coolant...) I also compression tested the engine to make sure and both cylinders held 0 pressure... I tested another cylinder to verify and it was near 150psi. I pulled off the supercharger and lower intake last weekend and will be looking at the heads this weekend. The intercooler was disgusting and it looked like the previous owner sucked in tape or a plastic bag (not including the ton of oil). [/QUOTE]
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