The Mitsubishi Pajero Owners Club®

Ging-gur · * Joined: 21 Oct 2014 Posts: 34 Location: Lincolnshire

Hello. Sorry if this is already in the system. I have the 95 swb, was going ok and has recently started misfiring and being really rich. I replaced the oxygen sensor, no change. Tried with and without air filter, no difference. Confused

It's had plugs in approx a year ago, along with leads. Will try and get the codes read in a couple of weeks once back from holiday. It seems to play up once warm. Just so I have a pointer please anyone? It's just another job to sort whilst I source an adjustable rear o/s rear shocker! Ho hum. Thank you in advance. Confused

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Ging-gur · * Joined: 21 Oct 2014 Posts: 34 Location: Lincolnshire

Would I be correct that a certain code would point to a specific plug/lead?? It only ever drops to 5 cylinders when trying to accelerate. I will go loopy if the guy has screwed me over! I'll be straight round. If it was these, which leads and plugs would be advised please? I am just making sure if I have to get them you see. I'll fit myself as well, I'll know they're correct then. Confused

andyshirley · Posted: Wed Jul 06, 2016 21:53 Post subject:

Could be engine temperature sensor, I've just had to change mine.

Ging-gur · * Joined: 21 Oct 2014 Posts: 34 Location: Lincolnshire

Hi andyshirley, I've had the truck scanned for codes, none have been registered. I called Mitsubishi today to ask about temp sensors, who said there were 3 on it at the top, which I've located. The guy suggested the only issues he had with the 6g72 engine was when rust powder became evident in the petrol tank. I pointed out that the truck will run fine from cold start, 5/25,50 miles no problem at all, which kind of eradicates the plugs/leads I would of thought? The issue arises once I switch engine off, then re start after anything from 30 seconds to 30 minutes. This is when I get the single misfiring when trying to pull away. Was this your issue? Did yours register a code on diagnostics? I'm totally baffled with the bloody thing at the moment. Which temp sensor/cost did you replace? Many thanks..

andyshirley · Posted: Fri Jul 08, 2016 17:07 Post subject:

Mine was occasionally refusing to start after switching off with a hot engine. It did log a code. Sometimes missed initially when it did restart.
Mines a 1992, no obd2, you read the codes yourself with a multimeter. Is yours obd2?
I had a spare sensor already. They are cheap on eBay though. You can check them by putting them in water and heating it and checking the resistance at various temperatures.
If the sensor is playing up the vehicle will over or under fuel.
It's the sensor front left as you look into the engine bay.
All info in the Haynes manual.

hutchy · Posted: Fri Jul 08, 2016 17:49 Post subject:

that will be the engine control coolant temp switch that tells the ecu how hot the engine is so it can adjust fuel air mixture my gdi did it a year or so ago:wink:

Ging-gur · * Joined: 21 Oct 2014 Posts: 34 Location: Lincolnshire

Hi. Did it pull an error code for diagnostic? There are 3 on my v6, the middle one looking from front, was the temp gauge. Not sure about the other 2. Naturally one is going to ECU. All 3 sensors look identical, which is something I guess lol.

andyshirley · Posted: Fri Jul 08, 2016 23:40 Post subject:

URL=http://s273.photobucket.com/user/andyshirley/media/Mobile%20Uploads/IMG_20160708_233335_zpszy0wemj4.jpg.html][IMG]http://i273.ph

andyshirley · Posted: Fri Jul 08, 2016 23:44 Post subject:

http://i273.photobucket.com/albums/jj215/andyshirley/Mobile%20Uploads/IMG_20160708_233335_zpszy0wemj4

andyshirley · Posted: Fri Jul 08, 2016 23:47 Post subject:

http://i273.photobucket.com/albums/jj215/andyshirley/Mobile%20Uploads/IMG_20160708_233335_zpszy0wemj4. Third time lucky Smile

andyshirley · Posted: Fri Jul 08, 2016 23:49 Post subject:

http://i273.photobucket.com/albums/jj215/andyshirley/Mobile%20Uploads/IMG_20160708_233335_zpszy0wemj4.jpg

andyshirley · Posted: Sat Jul 09, 2016 0:09 Post subject:

Sorry, no edit button. All but last need deleting.

Ging-gur · * Joined: 21 Oct 2014 Posts: 34 Location: Lincolnshire

Cheers thanks. Is the GDI the 6g72 block?

hutchy · Posted: Sat Jul 09, 2016 21:28 Post subject:

The gdi engines are 6g74...

Ging-gur · * Joined: 21 Oct 2014 Posts: 34 Location: Lincolnshire

It does have the OBD connector. No codes were stored. It's a 95 6g72. It doesn't make sense as it won't misfire on the one cylinder until the engine is stopped, then started again. If it was a fuel tank corrosion issue, she would do it anytime surely? It revs to max revs even when the misfire is there between 1500 and 3000 rams. So to me she wouldn't Rev if fuel orientated. Sorry I keep going on, but it's really getting to me. The reason I think it's electrical orientated is simply because of the switch off, restart, then it's a pig until it's cold again. It goes like stink when not misfiring, so it can't be a compression issue. I've tried holding it at max revs, doesn't clear the issue at lower end revs. Sounds nice obviously as it's got the stainless exhaust lol, but, oh, bloody thing. A code would have been perfect, but nope, make it hard for me, bloody thing lol. No engine management light illuminates either.