stangkiller

can a P0155-(sensor heater circuit malfunction) cause a P0300-(random/multiple cylinder misfire detected)?

ls1birdman

iTrader: (1)

i wanted to know did u fix your problem cause my car is doing the samething and i dont know what it is

gwj

I've got the O2 heater codes every now and then
(on fairly new sensors, even) and never saw
any correlation with misfires on my engine.
IF the O2 is functioning normally otherwise I
can't see that it would.
On a cold start the pcm monitors how long it
takes the O2 voltage to drop below 300mV.
If it does not within a certain amount of time
(time depends on other variables) then the
second time it happens the code sets.
LSS, when I get tired of it I just replace the
sensor.