I have low compression all cylinders according to the people I have taken it to. They did a leak down test on Number 1 cylinder and got air out the tailpipe and the radiator reservior. The compression was around 70-80 according to the mechanics and I probably have a burnt exhaust valve. But I have been wondering since I am getting a lean code if not that much fuel is getting to the cat and not damaging it that fast.
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Originally Posted by BroncoJoe19  The code I got was if I remember right was a P301 I think, it was that the number 1 cylinder had a misfire and a 02 sensor was showing a lean indicator.
Could you give us some more info about the poor compression?
Is it in all cylinders? or just cyl#1 ?
A lean indicator could be just a vacuum leak, and a vacuum leak at the #1 injector could give you a missfire for cyl #1, and a lean condition on Bank#1.
Its possible that a $3 O ring is leaking and causing your problem. |
