PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Bizzare issue's

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Old 03-12-2007, 12:22 PM
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Ok long story short. Did an LS2 swap a few weeks back kept getting p0343, ocassional hard starts etc. Yesterday I swapped to an LS-2 manifold with a 90mm Holley TB. Car started and ran fine. This morning the car would crank for days, but not start. My DTC'c have since changed to a P0341. What is even wierder is that if I plug a cheapie scan tool into the port; the car will start right up. However, if I unplug the scan tool; my oil pressure guage drops and the SES light comes on. Given enough time the car will ultimately die. Does anybody have any ideas?
Old 03-12-2007, 12:58 PM
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One thing I would mention is that some of the cam sensor harnesses that went out were defective. They had a couple of wires (I believe the two outside ones) crossed over. I know that this issue caused starting problems and cam sensor DTC's.
Old 03-12-2007, 02:06 PM
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Maybe check your earthing too?




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