Re: more bad news for my 2001 Taurus SE, running issue
Hi Again Tbird
Ok the check engine light came on again so went to Autozone and the puter gave a PO133 code.
HO25-11 slow response (heated oxygen sensor bank 1 sensor 1)
the powertrain control module uses the oxygen sensor to calculate the air /fuel ratio in the exhaust
1 oxygen sensor defective
2fuel system running rich or lean check other codes first
so can an bad oxygen sensor cause the 0 compression on cylinder 1?????
Last edited by billjack; 08-17-08 at 04:13 PM.