We had just replaced our alternator in our car and when we got it up and running again i noticed that it just wasn't driving right about 2 days later my car broke down. Our friend came over and hooked up the computer to our car and it came up that we had a camshaft sensor circuit malfunction. We tried a good camshaft sensor in it and still got nothing. Im not sure were to start looking to fix my car. I've had horrible luck with mechanics on my car so I'm not sure if this is one of those things we could be able to fix ourselves or if we should just take it to a mechanic. Do you have any suggestions on what else i could check to maybe get this problem fixed?
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code p0036 refers to heated oxygen sensor(HO2S) 2 bank1--heater control--circuit malfunction===causes wiring--HO2S---ECM
replace the sensor using the special tool so that the wires are not damaged on installaion
P0340 Hyundai - Camshaft Position Sensor 'A' Circuit Malfunction Bank 1 Or Single Sensor
- Faulty Camshaft Position Sensor
- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty starter motor
- Starting system circuit
- Dead (Weak) battery
PO335 crank shaft postion circuit "A" circuit malfunction This sensor is mounted on the left side of the engine block,Near the flywheel. If you replace this because its a code let me know if it worked and if you are getting more than 35 mph.
I have a 1999 BMW 740 il My SES light came on so I hooked up my OBD code reader p0340 - Camshaft Position Sensor Circuit Malfunction is what came up. so I went to the BMW parts department and bought the Camshaft Position Sensor.
I Replaced the with the new. My SES light was still on so I hooked up the OBD reader again hoping it may reset my SES light but it didn't what did happen is the OBD reader came up with the same code (p0340 - Camshaft Position Sensor Circuit Malfunction) witch is what I just replaced. now I'm at a loss. I'm not sure how to reset my SES light and if I just replaced the Camshaft Position Sensor why dose it the OBD code p0340 still come up. Any suggestions?
There won't be any spark for the plugs with this problem. The camshaft position sensor is what tells the PCM to send spark. There is a circuit malfunction with this sensor. As the name implies, it will be near the camshaft on bank 1. Mounted to the head. This has 3 wires and is held in place by two bolts. You will probably need to pull some things out of the way, air snorkel, engine cover (if you have one).
this is fairly common with these o2 sensors. replace the one that has failed. they have a 4 wire set up that incorporates a circuit for a preheater that warms up so it reads more efficiently and even controlls emissions at start up. there is a fuse under the hood on the left side for o2 sensor heater circuit. check this first and then replace if necessary.
Possible SolutionsWith a P0340 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
Visually inspect all the wiring and connectors in the circuit
Check for continuity in the circuit wiring
Check the operation (voltage) of the camshaft position sensor
Replace the camshaft position sensor as required
Check the crankshaft position circuit as well
Replace circuit wiring and/or connectors as required
Diagnose/replace the PCM as required
Sounds like since you have replaced both the camshaft and crank shaft sensors you need to look at the PCM. Go down the line of possible solutions and don't replace the PCM unless nothing else works obviously. I hope this helps but it looks like you are looking at getting a new PCM. Good luck. Thanks for rating my response and for using FixYa!