My Pajero (1999, 3.5L DOHC 6G74, SWB) started stalling when i slow down. It doesn't happen when i start the car and go, but after 10-15 mins of driving with or without AC it stalls as soon as i slow down and about to stop. There is no hesitation like it stalling due to bad fuel supply or something, full throttle runs very well like before and again it starts almost instantly w/o any hesitation or hiccup.
Spark plugs changed couple of months back (3000 kms) and yesterday checked the spark plug again, it looks good. Cleaned the throttle body with spray, but it still same.
Any guesses what I need to look into??? Thanks in advance.
Have exactly the same problem on my 3.5 V6 GDI LWB Auto. Anyone who knows what's the cause, let me know!
Sent from my iPad using Tapatalk
Sent from my iPad using Tapatalk
Though my Pajero is my second car, so very rarely driven and actually I haven't got time to look into the actual problem.
However one of my known mechanic increased RPM to 1000 RPM from 800 RPM and its not stalling at all. He adjusted the screw under semi circle metal piece that hold the idler cable (dont know its name)near the throttle body. In cold start it starts from 800 rpm and when fully warm it reaches 1000 RPM. Temporarily this cured the problem and car not stalling in cold start or when fully warm. Only problem is when you put in neutral idle jumps back to 1k (not a good site), but in D it stays good at 750-800 range.
If I find time and dig into the root cause, I will update here and expect same from you. Good luck.
However one of my known mechanic increased RPM to 1000 RPM from 800 RPM and its not stalling at all. He adjusted the screw under semi circle metal piece that hold the idler cable (dont know its name)near the throttle body. In cold start it starts from 800 rpm and when fully warm it reaches 1000 RPM. Temporarily this cured the problem and car not stalling in cold start or when fully warm. Only problem is when you put in neutral idle jumps back to 1k (not a good site), but in D it stays good at 750-800 range.
If I find time and dig into the root cause, I will update here and expect same from you. Good luck.
Sounds like the ICV (idle control valve) is acting up... Quite expensive. It regulates the amount of air bypassed the throttle butterfly to control the engine idle speed at various load from the AC, torque converter with cold tranny fluid, power steering etc.
Sent from my GT-I9500 using Tapatalk
Sent from my GT-I9500 using Tapatalk
Nicholas Gibson
2005 Gen 3 Pajero 3.2 DiD Auto LWB
Mods:
ARB front bumper, OME, Lynx Bash Plate, Lynx Rock-sliders, Lynx rear steel bumper, Front Runner 40lt Long range tank, Madman EMS2 with EGT, dual battery system, 700FF spots
Corsa 1.4 Club (swambo)
Cape Town
"In my house I'm the boss, my wife is just the decision maker." - Woody Allen
2005 Gen 3 Pajero 3.2 DiD Auto LWB
Mods:
ARB front bumper, OME, Lynx Bash Plate, Lynx Rock-sliders, Lynx rear steel bumper, Front Runner 40lt Long range tank, Madman EMS2 with EGT, dual battery system, 700FF spots
Corsa 1.4 Club (swambo)
Cape Town
"In my house I'm the boss, my wife is just the decision maker." - Woody Allen
Hi Nick,
I am afraid it isn't ICV as I have replaced the ICV from previous engine I had and it acted exactly same. Then my mechanic cleaned the current ICV thoroughly and its still problem persist.
I am afraid it isn't ICV as I have replaced the ICV from previous engine I had and it acted exactly same. Then my mechanic cleaned the current ICV thoroughly and its still problem persist.
Hi,
I had a similar problem on my 2000 CK 3.5 V6. It always happens just after disconnecting the battery. I do not know if the engine control unit / computer does clever adjustments, but have found that you must not rev the car on first start. This is very speculative, so don't shoot the messenger it you disagree. Maybe somebody with some proper electronic knowledge can confirm the story behind the story.
So, as mentioned above, do not rev the car after you start up the first time after disconnecting the battery. It is almost as it must "find" and adjust the idling to suit the low revs. If you rev it high, then you confuse it, and it sort of stays that way.
So my advise is disconnect the battery and start her gently and leave it to idle for 10minutes, while you fiddle and set the dash display to LWB or SWB and set the time etc.
I had a similar problem on my 2000 CK 3.5 V6. It always happens just after disconnecting the battery. I do not know if the engine control unit / computer does clever adjustments, but have found that you must not rev the car on first start. This is very speculative, so don't shoot the messenger it you disagree. Maybe somebody with some proper electronic knowledge can confirm the story behind the story.
So, as mentioned above, do not rev the car after you start up the first time after disconnecting the battery. It is almost as it must "find" and adjust the idling to suit the low revs. If you rev it high, then you confuse it, and it sort of stays that way.
So my advise is disconnect the battery and start her gently and leave it to idle for 10minutes, while you fiddle and set the dash display to LWB or SWB and set the time etc.
Hi MMC,
Thanks a ton for heads up, I will surely give this a try as soon as I have a chance. And I understand the nature and intensity of these electriCRY issues, so don't worry I will still thank you even if it won't work. However it sounds quite promising and definitely worth trying.
Thanks a ton for heads up, I will surely give this a try as soon as I have a chance. And I understand the nature and intensity of these electriCRY issues, so don't worry I will still thank you even if it won't work. However it sounds quite promising and definitely worth trying.
Any idea which type of OBD ( 1 or 2) comes in 1999 Mitsubishi Pajero 3.5 Liter, DOHC, V6, Petrol, SWB.
As far as I know, it is a MUT II interface, not obd protocol.Gaurav wrote:Any idea which type of OBD ( 1 or 2) comes in 1999 Mitsubishi Pajero 3.5 Liter, DOHC, V6, Petrol, SWB.
Sent from my GT-I9500 using Tapatalk
Nicholas Gibson
2005 Gen 3 Pajero 3.2 DiD Auto LWB
Mods:
ARB front bumper, OME, Lynx Bash Plate, Lynx Rock-sliders, Lynx rear steel bumper, Front Runner 40lt Long range tank, Madman EMS2 with EGT, dual battery system, 700FF spots
Corsa 1.4 Club (swambo)
Cape Town
"In my house I'm the boss, my wife is just the decision maker." - Woody Allen
2005 Gen 3 Pajero 3.2 DiD Auto LWB
Mods:
ARB front bumper, OME, Lynx Bash Plate, Lynx Rock-sliders, Lynx rear steel bumper, Front Runner 40lt Long range tank, Madman EMS2 with EGT, dual battery system, 700FF spots
Corsa 1.4 Club (swambo)
Cape Town
"In my house I'm the boss, my wife is just the decision maker." - Woody Allen
I suspect Nick Gibson is on the mark, (Idle speed control valve).
An easy way to check it is remove the ISC from the Throttle body, still have it connected, while holding the ISC, have someone turn the ignition key to start briefly, but not start the engine.
If the ISC is working it will vibrate slightly and the plunger will move in or out. If it doesn't, you may be able to dismantle and clean it, otherwise it's cactus.
I had one that looked brand new on the outside but corroded on the inside.
An easy way to check it is remove the ISC from the Throttle body, still have it connected, while holding the ISC, have someone turn the ignition key to start briefly, but not start the engine.
If the ISC is working it will vibrate slightly and the plunger will move in or out. If it doesn't, you may be able to dismantle and clean it, otherwise it's cactus.
I had one that looked brand new on the outside but corroded on the inside.