i did exactlly what you said, and the cel still came back on.
I disconnected the possitive from the battery, for a few minutes.
i reset the computer several times, the CEL will stay off till i turn the car off. when i start it up againe it comesback on.
what else do you think it could be ?
p0340 is the camshaft position sensor code.
i took it to advanced auto parts they are the ones who pulled the code.
i have a 3.8 sn95 mustang. the check enginr light came on. i got it diagnosed, it was the camshaft piston sensor. i replaced the camshaft piston...