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2.9 3000rpm between shifts
My 1989 Bronco ii 5Speed will jump up to 3000rpm when i shift gears and it will stay that high until you go under 25mph. Then it will return to 1000rpm idle. I have a KOEO code of 41 which is O2 stuck lean. Ive found one vacuum leak were the plenum meets the lower intake. I was able to get the...- WillinHiFi
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- Replies: 6
- Forum: 2.9 Liter Forum