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Re: My car is dieseling (1994 Lumina Z34)
Was the prom replaced with a new 1 or did they reuse the old prom from the old pcm. I would remove the neg battery cable for about 5 mins then reconnect it and take it for a long drive to help the pcm relearn. The 3.4 is a good engine but hard to work on and you dont want to break the timming chain tensioner by having engine after run
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