Last week I changed the air filter and took it in for scheduled oil change. They said it has a check engine light on which it has never had. I said that is strange but got the oil changed and took it to AutoZone to get it checked out. Their scanner showed a code P2006 with the suggestion of replacing the IMRC actuator.
I am a retired aircraft mechanic so I have been swinging wrenches for many years so I started researching what could have happened.
I pulled off the vacuum control actuator on the passenger side that controls the intake swirl tube and tested the solenoid and it clicks when adding 12 volts so then I attached a blown up balloon to the one vacuum tube and activated the solenoid and the balloon started to deflate so it appears the seal is holding properly and it is opening and closing as designed. The swirl tube easily rotates with no apparent hangups.
Next I pulled off the wiring plug on the opposite actuator electric actuator on the driver's side.I applied power and ground to pins 4 and 5 and watched the coupler rotate in one direction so I reversed the polarity on pins 4 and 5 and watched the coupler rotate in the other direction. It does not appear to be broken from what I can tell.
So next I mounted a small inspection camera to watch that coupling while I drove and I cannot see it moving at all from idle to 6000 rpms under driving conditions. Down the road (yeah I had my grandson watching the screen while I was driving).
So I am convinced that the ECM has losts its mind and this all has to do with that air filter change. The mass is not close enough to the air filter box to have gotten any debris in it while I changed the filter.
I have disconnected the battery twice and let it sit to kill the code. When I first start it and drive, the light is out but as soon as I shut off the engine and restart it the check engine light is back on. If it wasn't for the light I would never know that there were any issues with the car, it just runs so great.
I have a couple of other things to try yet but wanted to get some more ideas here. I know I can take it to a dealer and pay them $100.00 to hook it to their $7,000.00 scanner and maybe get the right answer. Thanks
have the same problem?
Wednesday, July 7th, 2021 AT 8:01 AM