Has anyone been successful in changing the knock sensor without taking the plenum off. It a a v6 4x4. Friend of mine thinks it can be done with taking a motor mount off and a special tool.
I did that too as a temporary fix until I dug into the top end, it got rid of the codeThere is no way.. you would have to have a 5 jointed arm to be able to get in there then there is no way to move a wrench. What I did was just bypass that stock Knock sensor. and Use one from a Maxima and the wiring harness from the Maxima as well and just spliced it to gether and put the knock sensor on top of the intake plenum. Completely solved that constant code popping up about the sensor. I believe i picked up both the sensor and harness for about $40 on EBAY
What happened?Coolant leak on lower plenum... coming back apart tomorrow
Is it just misfire on startup or more often? Check the freezeframe data. That may be a hint for me for where to start to look next.Update- car drives great. Mechanic forgot to clear codes so I did. Haven't driven <1 mile it since but I did get new code P0301. Cylinder 1 misfire. Could it be from just resetting the code or do I need to change the wire?
Thats where the car's computer records what other sensors were saying when the code happened. That way, you can look for the misfire when it's expected instead of not knowing if the engine has to be cold, or hot, or whatever.It's on startup. Haven't driven it much to get a feel for it. My guess is it's a plug wire from when the mechanic put it back together after the knock sensor
What do you mean by freezeframe data
Check your throttle cable hookup and throttle cam for mechanical issues, if good then calibrate your TPS with a multimeter on ohms to spec, if it's still idling high you may have to do a throttle relearn procedureChanged wires and cleaned the code. Took it for a ride and rechecked. No codes. Idling high about 1800 rpms but steady no fluctuations
Sounds like you need to follow the procedure of checking your TPS calibration , you'll need a multimeter and possibly a set of feeler gaugesOk so today I started my truck. P0301 code was back. Cylinder misfire. Now I'm pissed. I Take a step back and begin to look. We'll find a clamp that was overlooked on the cold air intake. Start truck up and code is gone. Take it for a spin put about 20 miles on and now the rpms are steady 1100 when at a light. Cold start is about 1800 in park. Get back and new code p0510. TPS sensor closed. I feel like I'm chasing codes constantly