The Mitsubishi Pajero Owners Club®

munim · Posted: Fri Jan 08, 2010 17:42 Post subject: low mpg pajero jr

Would be very grateful if any body could help me with low mpg problem
My Pajero Jr automatic transmission does approx 8km/litre (22 mpg) which is too low

How can I improve this (chip tuning etc)

Dr Abdul Munim Khan

+92 345 5117720
Islamabad
Pakistan

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silverinca · * Joined: 16 Feb 2009 Posts: 29 Location: London

Hi there, mine does exactly the same (22 Mpg). I too was wondering why it is so low for a 1.1 litre engine. Can anyone shed some light on this?

Nuck · Posted: Fri Jan 08, 2010 22:49 Post subject:

How did you work out how many gallons you use? How large is the fuel tank in the engine?
Edit: 35 L or 9.25 Gallons

I've been getting about 25 or 26mpg

Nuck · Posted: Fri Jan 08, 2010 22:57 Post subject:

munim · Posted: Sat Jan 09, 2010 18:09 Post subject:

I have installed CNG kit in my Pajero jr
It has doubled my mileage in terms of cost per km

Previously it was PkRs 8/km now it is PkRs 4/Km in city

or 10 cents/km to 5 cents/km
you can convert in UK pounds

Petrol is 64 Rs/Litre
or 80 cents/litre

Correct tyre pressure/ Oil change/ Clean Air filter are important but I think the real problem lies in correct chip tuning

munim

munim · Posted: Sat Jan 09, 2010 18:15 Post subject:

My other car Corolla Xli 2003 is also CNG converted
gives great mileage for a 1300 cc engine car
Rs 3/km on CNG and Rs 6/km on petrol in city

that is 25% more mpg than Pajero Jr

munim

ViRuZzz · Posted: Sat Jan 09, 2010 19:13 Post subject:

«20 most probable reasons of the raised fuel consumption»:

1. A delayed ignition. Corner shift increases the expense on 1 % by 1 degree.
2. Incorrectly exposed spacings in spark plugs, and as faults in work of candles - 10 %.
3. The passing beam of headlights increases the expense on 5 %, distant by 10 %.
4. The temperature of a cooling fluid below the settlement increases the expense on 10 %.
5. Driving on непрогретом the engine increases the expense on 20 %.
6. The raised deterioration цилиндропоршневой groups. Each lowered atmosphere (a compression unit of measure) increases the expense on 10 %.
7. Deterioration of a connecting rod gear - 10 %.
8. Deterioration of clutch - 10 %.
9. Deterioration of the gear of a gas distribution, and as not adjusted spacings of valves - to 20 %.
10. The drawn bearings of naves of wheels - on 15 %.
11. Not adjusted descent a camber - 10 %.
12. An underpressure in tyres - on 9 % on each 0,5 kg/sm2.
13. Each 100 kg of cargo - on 10 %. The loaded luggage compartment on a roof increases the expense on 40 %, empty by 5 %. The trailer - 60 %.
14. A driving manner on 50 %.
15. Untimely replacement of an air filter (recommended periodicity - time in 5 thousand in km) increases the expense on 10 %. Application of air filter cartridges with heavy precleaners made of cloth increases the expense on 5 %. Filter cartridges of easy type without precleaners are recommended. Resistance of an air flow through such filter the minimum.
16. Problems connected with the feed system (the carburettor; a gasoline pump) - to 50 %.
17. Low-bracket gasoline application - to 5 %.
18. The deformed motors with the reduced compression ratio - to 10 %.
19. A head wind - to 10 %.
20. Movement on a line with low factor of clutch - to 10 %

I use the electronic translator, discrepancies in transfer are possible.

munim · Posted: Sun Jan 10, 2010 15:10 Post subject: high mpg

Dear Viruzz

Where is the connector for OBD II located in P Jr
Which OBD Scanner/ device to use to chip tune the engine

munim

ViRuZzz · Posted: Sun Jan 10, 2010 16:23 Post subject:

Dear munim.

The diagnostic socket to be at the left foot of the driver on the panel. I do not use the scanner.
It is possible to consider codes of errors by a blinking of display lamp CHECK - for this purpose it is necessary to close contact piece on a socket with the case.

Visit the Russian forum which member I am. There, practically, there are answers to all questions on Pajero Junior.

Pajero4x4.ru Russian OFF-road club (Junior theme)

ViRuZzz · Posted: Tue Jan 12, 2010 8:05 Post subject:

SCANNER OBD-II

red6 · ** Joined: 31 Jan 2009 Posts: 91 Location: Malta

I made a post on the scanner in this forum some time ago.
Briefly I found as far as the Junior is concerned - forget it ( unless you can afford a thousand pounds or so for a proffessional garage diagnostics consul.)
Yes the Junior has a socket - yes it is in the right place - yes it is correctly wired to the ISO standard - no it does not work.As with everything on this car nothing applies. The software for the Junior diagnostics is not standard so will not be read by a scanner.
I know, I bought one from the auction site (£50) just to test the theory.
I then rang the maker of the scanner, very nice people, who told me it will not work with a Pajero Junior (for the reasons I have already explained)
In short if you have an engine management fault ie the light stays on on the instrument console, you are on your own unless you can find a Mitsubishi dealer with the required computer program. I think that highly unlikely.
I have had one fault which as it happens is not covered by the scanner system anyway and that was the stepper motor causing idle problems. If anyone has similar contact me as I have spent many happy hours researching and fixing. (only £300 plus to fix on a Junior for a tiny item)
A nice motor completely ruined by lack of support and information, the big Pajeros were officially imported to the UK & other places with the Shogun name & so a network sprang up but not so the Junior. I had to import a towbar for example to Malta manufactured by a specialist in UK because (for the above reasons) people like Witter do not make them) You can get them for 2000 on but that is not Junior which finished in 1998/9.
I get some parts via Mitsubish but it always takes 9 weeks.

Nattyone · Posted: Thu Mar 10, 2011 21:27 Post subject: Gas Milage

I have had my Jr for about 4 years. it gives me 37 mpg from a full tank. It has been my trusty steed and has not failed me yet. Don't here we have tons of them. Out dealer brought them in. I'm looking to get the IO cause family is getting bigger.

dave1000car · Posted: Tue Mar 15, 2011 5:49 Post subject:

hi guys
mine is doing 25 MPG i filled it to the brim and did 120km on motorway average 4000rpm 100-110 kmph then refilled it and it took 13.4 lt convert to gallons and miles
and i get 25 MPG
and i've got BFGmud terrains on mine so i surpose not doing too bad
i have a 92 mazda rx7 twin turbo induction kits bigger wheels and chipped to about 300 BHP and on the same route average 120kmph getting 22 MPG but about 17 MPG
around the town Very Happy

cheers dave

Caner505 · Posted: Fri Sep 02, 2016 22:33 Post subject:

Hey I know it's an old thread but @Nattyone I'm really interested. How did you get such great MPG??

JayBee · *** Joined: 12 May 2007 Posts: 148 Location: Ireland

The owner manual states between 13-14 km/L of fuel.

As I said in a previous post (you will have to search for it) that I changed the viscous fan for an electric one and got an immediate improvement.

Losing a lead foot will help too. Too much breaking in town will lower fuel efficiency and going over 55mph on motorways doesn't help as you go over the ideal torque. On motorways I sit in behind trucks and leave them to move the air for me.