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Old 10-07-2017, 10:55 AM   #1
Bahlzeron
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Join Date: Jan 2016
Location: Grand Rapids, Michigan
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Bad ECM killing O2's?

Been having issues all summer long and can't seem to figure it out. I replaced upstream o2 sensor twice, first one lasted maybe five miles, the second one lasted thirty. What could be killing the O2 sensors so quickly? Dang thing will not idle, runs great off idle though. I've replaced the MAP, throttle position, crank position, cam position, and IAC as well. And here's the kicker... the computer isn't giving any codes.

Any suggestions?
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2001 Black GX Coupe 2.4l 5 spd, short shifter, trunk lid w/ spoiler (amazingly from same original dealership), hood struts, Cosmo Evolution SRI, front & rear stb's, GAGT mirrors, more to come
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