I purchased my 05 Grand Cherokee HEMI about 4 months ago and wanted to take a look at the plugs to see what shape they are in. Anyways the plugs do need to be changed but as I was looking at that I took a look at my throttle body and notice it was extremely dirty, oily build up. What is the best way to remove this gunk. I remember on my old yj I was just buy some throttle body cleaner spray it down the thottle body while revving the engine with the throttle cable. Also while putting everything back together I forgot to replug the one little sensor in the air box now I am getting a engine light with p0113 (Intake Air Temperature Circuit High Input code - Intake air (charge) temperature sensor input above the maximum acceptable voltage.). I plugged it back in but whats the best way to clear the code. I know of the unconnecting the battery hitting the brakes for 30 secs and then reconnecting everything, is this the safest and best way to do it without a obd2 reader?
That code should clear itself in 3 "good" trips. These are drive cycles with it being plugged back in. Also, after you get the throttle body cleaned buy a catch can. It will eliminate the gunk problem on the backside of the butterfly.
Your right, three trips and the check engine light went out. I did the key trick but the error code is still present. How long before that removes itself?
I don't believe the code will go away on its own....just the MIL, as you've indicated. There are a number of choices though. To delete the code (now historical) you can try disconnecting the battery for a about a half minute (this may require resetting all presets though), go to an AutoZone (free) or dealer ($$) and have them do it, buy a Diablosport or Superchips Tuner (the SC is the best choice, IMO), a DashHawk (also a good choice, IMO), or some other OBDII code reader.
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