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bpu699 bpu699 is offline
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Join Date: Apr 2007
Location: wisconsin
Posts: 2,539
Odd you should mention that. Last week I disconnected the oxygen sensor, and it made no difference. Now, I just did it, and disconnecting it fixed the problem for now.

I bought the plx afr meter, will connect next week.

Would a flaky Bosch oxygen sensor do this? The prior owner had it disconnected.

Note that I did have to lean it out a quarter turn either way.

I do wonder if after years of sitting something in the fuel system was constricted, and it just opened causing a rich condition...
Old 07-27-2014, 05:40 PM
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