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n8jay 08-13-2010 07:38 PM

throttle body
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?


Scottina06 08-13-2010 07:56 PM

Re: throttle body
I would just wipe it out with a soft microfiber. You have an electronic you have to be careful with cleaners.

Just pull the negative cable on the battery and press the brake pedal several times to clear the codes

jeepgcoman 08-13-2010 08:06 PM

Re: throttle body
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.

n8jay 08-16-2010 03:09 PM

Re: throttle body
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?


jeepgcoman 08-16-2010 04:55 PM

Re: throttle body
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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