Help Needed - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 02-05-2010, 08:13 PM   #1
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My car stalls once in a blue moon but starts right back up. Also once in a blue moon when i shut the car off for like 10 or 15 minutes. It wont start up; I get two codes a P0336 and P1645. If i wait like ten minutes it starts right up. Before it will start up i erased the codes and the P0336 erased the P1645 stayed. The crank sensor is good. I always have my scanner with me and it shows crank rpms when cranked but dosent start till i wait like 10 minutes. I changed the ICM and and the one coil that was cracked but it still does it. Any help will be appreciated. Thanks.
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Old 02-05-2010, 09:36 PM   #2
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Check the cam position sensor.
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Old 02-06-2010, 01:35 AM   #3
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DTC P1645 Supercharger Boost Solenoid Control Control Circuit. I don't know the equip. but I can give you diagnostics for it.
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Old 02-06-2010, 01:41 AM   #4
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Hey sorry but i have to work on this some more.
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Old 02-06-2010, 01:45 AM   #5
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actually if you save thumbnails to your hard drive they will look much better.
be sure to consult with somebody else about probing connectors and PCM harness
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