Some one pulled ethe oxy sencer wires apart.i replaced the oxy but after it warms up it wont drive. sputters and sounds like its running on 3 cyl.. i dont know if i hooked up wires right or if its something else.. need to get it fixed soon please help
If it is a three wire ox sensor then you must make sure that wires are hooked up right or it will not function and cause engine to run erratic. One of the wires are for the preheater in ox sensor so it must be hooked properly.
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check spark plug of the cyl. switch plug with another cyl, run engine until warm to see if misfire still comes on. if it stays on the same cyl. fault could be high tension wire or coil or worse leaky valve or rings. if misfire switched to the other cyl just change plug or better replace all plugs
bad need of a tuneup? like new spark plugs, ?
172 , is 02 rich/ lean warning. this one is low oxy for rich.
this code can just be a victim. for sure , with misfire.
means 02 sensor stuck at rich,
what is water temp in engine coolant, at failure? less than 150F?
could be lots of things.
leaking injectors, bad fuel.
injector sticking> causing misfire.
id use a scan tool and watch all sensor when it fails.
too high fuel pressure.
misfires cold, but only luke warm cold starts not fully cold.
just one DTC, no P0300 or 30x misfire codes, not even P0300 pendings?
sounds like the 2 wires on the lock cyl are broken you have to remove steering wheel, lock plate and turn signal switch to get to the lock cyl then the 2 wires run from the key lock cyl to under dash so you will have to run them into the steering column you do need special tools to replace the lock cyl