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Re: 1990 Buick Lesabre
I would start old school and check Fuel pressure and spark. Then
Because even though you done something a million times. Always check your work. Make sure your cam trimming is correct by pulling the cam sensor and looking to see if the magnet lines up at #1 TDC. That being OK, its time to start a compression test. If they are around 200psi across the board, its time to buy a scanner and start looking for the bad sensor/wire that did not like getting removed and replaced. It sucks trouble shooting a problem on an engine that has never run. This makes the OBD useless. No scanner you say. That is OK, just use a DVOM and an Oscope.
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