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!!No power when hot!! Starts and idles fine. Help me fix this dog. '89 B230F 700 1989

posted by  bobp on  Mon Dec 2 03:32 CST 2002
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1989 740 with a B230F engine: My car just dogs along when in the engine is in the normal operating temperature range. I could barely get to work this morning! Almost zero accelleration onto the freeway. I couldn't drive past 55 mph. Once off the freeway, I had trouble going past 30 mph on the side streets uphill. It feels like I'm not getting enough fuel, rather than a misfire.
The car starts perfectly in the cold and idles perfectly. The car doesn't seem to show the lack of power when the engine is cold, otherwise I wouldn't have left the house with it.

I replaced the ETC sensor, which fixed a cold starting problem I had. This lack of power problem existed before I replace the ETC, but I drove it to work thinking that the new ETC fixed the problem.

I have an extra AMM, so I could try replacing the AMM.

So for now, I'm up the creek without a paddle.
--
Bob - 89 740, 86 745T






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