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FPR not working? 700 1988

posted by  fisher on  Wed Mar 26 03:18 CST 2003
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I had the same symptoms with my 88 745t - surging and removing the vacuum line had little effect. I also did some O2 sensor readings and my car ran very rich even with a vacuum leak.

After replacing the FPR, I have no surging, better fuel economy (1.5 mpg better) and a lot more power at WOT. No more detonation either.

It's worth a try. If it isn't the problem, replacing the FPR is just a good thing to do anyways as they seem to get lazy as they get old.






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