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I seem to be running too rich; plugs fouled black, soot coming out of exhaust. I cleanted the throttle body, idle control valve etc, so I don't think it's an air problem.
I plan to replace the O2 sensor, but It seems to me I have read here in the past that AMMs needs to be calibrated. A while back I had a bad AMM and replaced with used, all seemed fine, but this my be when my rich running started.
Can/should you calibrate the AMM that's in the '89 (Bosch 016) ? If so, how is that done.
Thanks,
Andy in St. Paul
'89 244 136K, '91 745 Regina 185K, '87 245 lost the rust battle at 225K
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Andy '91 745 184K, '89 244 134K, '87 245 lost the rust battle at 225K mi
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