Knock Sensor replacement Nissan Xterra Complete knock sensor repair from start to finish. The car has a hard fault code P0325 Knock Sensor Circuit Malfunction.
After diagnostic was performed it was determined that the knock sensor would have to be replaced. Unforchanetly on this Nissan Xterra, the knock sensor is not acceptable unless the upper and lower intake manifolds are removed.
Labor time to do this by the book is about 5 hrs. So not the easiest or the cheapest repair. There is an option to relocate the knock sensor to save money.
I will tell you in my video the pros and cons of trying to relocate the knock sensor. The purpose of the knock sensor is to retard the timing to prevent cylinder detonation, in turn, preventing engine damage. The knock sensor works by sensing engine vibrations caused by cylinder detonation.
Cleared the codes and they returned. Scan tool has the actuator test for the exhaust valve timing control but there is no engine change. Average Reported Mileage: 117513 Tests/Procedures:
1. Clear the codes.
2. Scope the pulsed voltage signals to the exhaust valve timing control magnet retarder at terminal 6 and terminal 7 of connector F101 of the Engine Control Module (ECM) or scope then at the magnet retarder and look for 0-12 volt square wave signals at 1500 -2000 RPM.
3. Can try to operate the exhaust valve timing control with the scan tool and look for the square wave signal as well.
4. Ohm the exhaust valve timing control magnet retarder on each bank – specification is 9.0-11.0 ohms at 68 degrees F.
5. Remove the exhaust valve timing control magnet retarder on each bank and check the plate behind them for wear. May see one single groove. See if there is uneven wear.
6. Inspect the rear end of the camshaft signal plate for debris.
7. Perform the exhaust valve timing control learning procedure using the following procedure: a. Start engine and warm it up to normal operating temperature. b. Set selector lever to N position (A/T) or neutral position (M/T) and confirm that following electrical or mechanical loads are not applied. – Headlamp switch is OFF – Air conditioner switch is OFF – Rear defogger switch is OFF – The steering wheel is in the straight-ahead position, etc. c. Keep the engine speed between 1,800 and 2,000 RPM at 20 seconds.
Tech Tips: Feedback from Infiniti is that the exhaust valve timing control magnet retarders are wearing and getting out of position changing the camshaft timing and setting the codes.
Left Front Speed Sensor Circuit, ABS Code c0035 This one was a very easy fix. Found abs sensor unplugged due to broken clip.
Wish they were all this easy to fix.
If your ABS code is C0035 and is not so easy you can unplug the LF ABS sensor and check the resistance of the 2 wire ABS sensor with a multimeter. If you find the ABS sensor to be an open circuit it will need to be replaced. Also carefully check for a poor connection or chaffed through wiring. Which is also very common.
ABS wiring is always subject to the very poor condition due to road debris and moving parts.
p0011 camshaft timing over advanced P0455 EVAP System Large Leak Detected Smoke check evap system for leaks and none were found.tested all sensors and found purge valve stuck open. p0011 Camshaft Position Timing Over-Advanced/System Performance (Bank 1)
The Engine Control Module (ECM) duty-cycles the oil control valve to control oil pressure to the intake camshaft sprocket to vary the intake valve timing. Low engine oil or poor vehicle maintenance also cause this problem. Found oil very low and dirty. Did bg oil flush and oil change.
TSB OEM Number Issue Date Description 09-EM-002 No Date Available CVVT OIL CONTROL VALVE INSPECTION
P0011 Camshaft Position Timing Over-Advanced/System Performance (Bank 1) Possible Causes Setting Conditions full article at p0011 p0455
OTC: Genisys EVAP System Large Leak Detected Camshaft Position Timing Over-Advanced/System Performance (Bank 1) You can also see another video I have on variable valve timing solenoids here: https://youtu.be/-yBt92c7qk0
