haolepinoy
Incomplete Idiot
What controls the idle speed on a 2003+ (3.8L) Gen3 Monty? Could someone explain to me how it works?
I've had an idle that sits at or slightly below 500 rpm when I'm in Drive sitting at a stop. Seems low to me, like maybe there's a gunked up component in there that needs to be cleaned (I just don't know who it is) or an adjustment that needs to be made. The Haynes manual for the Pajero says normal idle is around 700, slightly higher with the A/C running. I've also had a few instances of stalling when I've got several electrical components on or the a/c (but I think that's a different issue...a whole 'nother thread).
It's my first time dealing with an electronic throttle body so I've searched in vain for a non-existent IAC motor to clean (my first instinct). I've read about ten contradictory idle speed "relearn" procedures for the PCM. There's rumored to be an idle adjustment solenoid that bumps up idle speed when the a/c is on. The previous owner's service records have instances where idle troubles were associated with MIL codes for the MAF sensor (their notes also suggested a failing PCM could cause the idle issues). How does the EGR tie in, or PCV, or any of the other components in the vacuum system? Needless to say, I've been reading across the internet all week trying to sift through solid info versus not-so-educated guesses and am a little more confused than I should admit.
I'm 3 months into Montero ownership and am more than elbow deep into most of the "common" issues (glove box latch, rear seat latch, free-wheel solenoid, cam seal leaks, instrument cluster lights, and on and on...). Seems the previous owner managed to accumulate almost all of them before selling the car to me. It feels like I'm in intensive automotive school (a good thing for my brain, but not the wallet). The learning curve has been steep, so any advice/help from those of you who are more seasoned Mitsubishi owners is very appreciated (my Google skills are getting a little better Jeep-n-Montero, but they're not top-notch yet...spent a solid week there before posting here).
John in VA
I've had an idle that sits at or slightly below 500 rpm when I'm in Drive sitting at a stop. Seems low to me, like maybe there's a gunked up component in there that needs to be cleaned (I just don't know who it is) or an adjustment that needs to be made. The Haynes manual for the Pajero says normal idle is around 700, slightly higher with the A/C running. I've also had a few instances of stalling when I've got several electrical components on or the a/c (but I think that's a different issue...a whole 'nother thread).
It's my first time dealing with an electronic throttle body so I've searched in vain for a non-existent IAC motor to clean (my first instinct). I've read about ten contradictory idle speed "relearn" procedures for the PCM. There's rumored to be an idle adjustment solenoid that bumps up idle speed when the a/c is on. The previous owner's service records have instances where idle troubles were associated with MIL codes for the MAF sensor (their notes also suggested a failing PCM could cause the idle issues). How does the EGR tie in, or PCV, or any of the other components in the vacuum system? Needless to say, I've been reading across the internet all week trying to sift through solid info versus not-so-educated guesses and am a little more confused than I should admit.
I'm 3 months into Montero ownership and am more than elbow deep into most of the "common" issues (glove box latch, rear seat latch, free-wheel solenoid, cam seal leaks, instrument cluster lights, and on and on...). Seems the previous owner managed to accumulate almost all of them before selling the car to me. It feels like I'm in intensive automotive school (a good thing for my brain, but not the wallet). The learning curve has been steep, so any advice/help from those of you who are more seasoned Mitsubishi owners is very appreciated (my Google skills are getting a little better Jeep-n-Montero, but they're not top-notch yet...spent a solid week there before posting here).
John in VA