Question about 1997 Mitsubishi Pajero

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What are the function of the oxygen sensors on a 1997 Mitsubishi Pajero GDI 3500

The car stalls when you stop when it is heated up, but when cold it can iddle.

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 34 Answers

SOURCE: mitsubishi pajero io 1.8 GDI idle unstable

sounds like the cabbruter is losing pressure cheak tubes may be lose or damaged

Posted on Feb 24, 2009

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blueextc3221
  • 15935 Answers

SOURCE: need to know placement of heated oxygen sensor

The O2 sensors are located in the exhaust piping.
One (bank 1) is on the engine side of the Catalytic convertor.
Second (bank 2) is on the other side (exhaust end).

There are manufacturers that make universal fits that will go in either location. Be sure to specify the rear sensor when you go to the parts store.

It will look like this....

cfea0cf.jpg
It threads right into the exhaust pipe.

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Posted on Mar 05, 2009

  • 1 Answer

SOURCE: Mitsubishi Montero/Pajero ECU Ignition Wiring

my jeep is are not charging whet can do for me i replace the alternator i put the steter coile but not charging plz reply

Posted on Apr 05, 2010

  • 2 Answers

SOURCE: My car stalls when slowing to stop or crawling in traffic.

i had the same problem on my 95 pajero 3500 andafter all my troubles my car produced an occasional airfilter blow back from running on gas before it finally would'nt run my problem turned out to be my crankshaft sensor was failing then died.

Posted on Jun 12, 2010

jturcotte
  • 8273 Answers

SOURCE: My car is a 1997

Hi, an intermittent poor idle can be caused by certain valves that are perhaps not always closing properly. Three valves I would check are the EGR, purge, and idle air control valve. The EGR valve can get dirty and start to jam. The purge valve sometimes gets charcoal coming thru the line from the vapor cannister, and the charcoal can hold the valve open when it's supposed to be closed. The idle air control valve is the valve that is supposed to control your idle. If it is not opening properly, the car will not idle right. I explain a lot of this in the following post: http://www.fixya.com/cars/r7427423-fix_poor_idle_high_idle_stalling_fuel

On your car, I am not sure which emission controls are installed. If you have evaporative emission laws, you will have a vapor cannister somewhere in the engine compartment. I believe the purge valve is atop the cannister on the Pajero. Pull the hose off to see if there is charcoal in it. Also look inside the valve where you pulled the hose off to see if it is closed.
There are pictures below of the idle air control valve and the EGR valve. The idle air control valve is mounted on the throttle body, near where the cables from the accelerator pedal attach to the engine. Take the valve off and see if it needs cleaning. Also clean out the passages in the throttle body. Use carburetor cleaner to clean these parts. Also clean out the inside throttle body, if dirty.
Finally, if these valves seemed to be OK, take off the EGR valve and clean it out. Make sure it closes by default. If not, replace it. Please let me know if you have questions, and thanks for using FixYa.



IAC motor/valve:

jturcotte_232.jpg


EGR valve
jturcotte_233.jpg

EVAP system
jturcotte_992.gif

Posted on Feb 07, 2011

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sounds like the cabbruter is losing pressure cheak tubes may be lose or damaged

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