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Drifter1309 · 08-01-2010, 11:16 AM

Hi, I just bought a 1990 240sx. On my way home the car started sputtering and backfiring. We noticed that the o2 sensor was not in the header and it was burnt a little. the car would only act up at 2-3000 RPM. Would this be a timing issue? Please help me out I'm new to the 240 world.

08-01-2010, 11:16 AM	#1
Drifter1309 Join Date: Aug 2010 Location: Green Bay, WI Age: 32 Posts: 1 Trader Rating: (0)	KA24E Problems Hi, I just bought a 1990 240sx. On my way home the car started sputtering and backfiring. We noticed that the o2 sensor was not in the header and it was burnt a little. the car would only act up at 2-3000 RPM. Would this be a timing issue? Please help me out I'm new to the 240 world.