03 4.0 SOHC rough idle and DTC's
#1
03 4.0 SOHC rough idle and DTC's
So like it says my tuck has a rough idle at times to the point if i leave it alone it will die. The codes its throwing are a bank 1 lean and bank 2 lean and bank 1 sensor 1 stuck lean. anyone else have this happen to them? and is it an O2 sensor? or something else? The truck has 183,000 on it and i'm running a K&N air filter and a flowmaster delta 40 series muffler
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So like it says my tuck has a rough idle at times to the point if i leave it alone it will die. The codes its throwing are a bank 1 lean and bank 2 lean and bank 1 sensor 1 stuck lean. anyone else have this happen to them? and is it an O2 sensor? or something else? The truck has 183,000 on it and i'm running a K&N air filter and a flowmaster delta 40 series muffler
#3
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when both banks are running lean, its most likely the maf. my guess is its just dirty. K&N are known for letting particles in, and with 180k on your motor, i wouldn't be surprised if your maf is dirty. Also i think its already been said but the platic pipe that goes from your intake to the engine right after the MAF make sure its connected.. i got tired of that thing popping off that i replaced it with a radiator hose.
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