s4in7 Posted April 27, 2015 Report Share Posted April 27, 2015 (edited) Since our DJ's (and most Chrysler Group vehicles) employ MAP sensors in place of MAF sensors, and there's barely any information about cleaning them, I figured I would step up.First, go to AutoZone or wherever and get you some MAF Sensor cleaning spray or in place of that Electrical Parts cleaning spray.Next, remove your engine cover and locate your MAP sensor. Unclip the sensor wire and remove. Then, turn the MAP sensor counter clockwise to about 3 o'clock (the back of the engine bay is 12 o'clock) and wiggle slightly while pulling straight up. It'll come out with minimal force.Grab your MAP sensor and spray and stick the straw in the hole of the sensor, careful not to go all the way down and rub the straw against the actual sensor inside the plastic housing. Give it 10 or so good, quick sprays changing angle slightly between each one. Shake out the excess and let it dry (should take 10 seconds).Plug the sensor back into it's home in the same 3 o'clock orientation and press down until the blueish o-ring is not visible. Keep pressing down, and turn the sensor clockwise back to its original factory orientation and reconnect the sensor wires.Fire it up, let it idle for a bit, rev it a few times, make sure it's not throwing a CEL and if all's good take it out for a spin. My sensor was a little dirty (I could see some dust and stuff down in there) and cleaning it really seemed to put a pep in it's step! Highly recommend doing this every time you clean or change your air filter or every few thousand miles. Edited April 27, 2015 by s4in7 Link to comment Share on other sites More sharing options...
redtomatoman Posted April 28, 2015 Report Share Posted April 28, 2015 Ok. Dumb question. Is cleaning my MAP sensor something I should be doing? Without Google, I would have no idea what it is. Peace. Link to comment Share on other sites More sharing options...
jkeaton Posted April 28, 2015 Report Share Posted April 28, 2015 Not necessary unless you get a check engine light telling you there is a problem. Then, this would be the first thing to try before replacing it. Unless you just like to take things apart and clean them. Link to comment Share on other sites More sharing options...
s4in7 Posted April 28, 2015 Author Report Share Posted April 28, 2015 I do And even though my vehicle has less than 1000 miles on it, the MAP sensor was still dirty with dust and specks of dirt or something on the sensor membrane. Cleaning it really made a difference to the ol' butt dyno. Link to comment Share on other sites More sharing options...
onecrazyfoo4u Posted April 28, 2015 Report Share Posted April 28, 2015 I would be worried about cleaning it too often. If it's as fragile as a MAF sensor that is. You even look at a MAF sensor wrong and they break on you... Link to comment Share on other sites More sharing options...
s4in7 Posted April 30, 2015 Author Report Share Posted April 30, 2015 MAF's aren't too fragile, you just have to be careful not to touch the hot wire! MAP's are much more basic and the sensor membrane is embedded in the square plastic housing, so as long as you don't get overzealous with the straw and poke it into the membrane you'll be fine It's a good idea to clean it every time you clean or change your air filter--at least in my experience. Link to comment Share on other sites More sharing options...
Woah322 Posted May 11, 2015 Report Share Posted May 11, 2015 I have yet to see any reason to take the chance of breaking it to clean without having a issue with it jkeaton and rolly 2 Link to comment Share on other sites More sharing options...
jkeaton Posted May 11, 2015 Report Share Posted May 11, 2015 If it aint broke, dont fix it. rolly 1 Link to comment Share on other sites More sharing options...
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