Dodge Repair Questions? Ask a Mechanic for Answers ASAP
Hi Im David, is there no fluctuation of the sensors?
5 volts on a scan tool? never seen that
that sensor is bad. and so is the downstream... wide open
the upstream should be fluctuating between .1-.9 thats it. the downstream should settle at around .550. on both banks
what codes are you getting?
for you not to be getting codes is insane
replace all 4 sensors with oem dealer. then we will see whats going on. you may also want to do a backpressure test to make sure the converters arent clogged.
you probably need to pressure test the coolant system to make sure youre not losing coolant internally, which would probably be a bad lower intake manifold gasket
hows it going?
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