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Check Engine Light/Diagnostics 200 1990

posted by  interstition on  Mon Aug 15 12:14 CST 2005
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last visit: Mon Apr 28 10:13 CST 2014
[RELATED]

Don't know why the light didn't come on right away, but your symptoms nad codes are identical to what I had in my '89 after I fouled my O2 sensor with leaking ATF. Mine ran better with the 02 sensor unplugged until I was able to install a new one. (Old one was frozen in place and had to replace the header pipe.

Let me be the first to tell you that Brickboard lore warns that all manner of pestilence will befall any who fool around with the AMM wire while the car is running! I always wondered how true that was. Post back if your AMM fails next week, but I think you are OK.
--
Andy in St. Paul. '89 244 153K mi, '91 745 Regina 202K, '88 244 184K






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