[gaaloul.med]

Hello everybody,

I am new on this forum, I am from Tunisia (North of Africa) and I have a 2001 MY - V78W - Pajero 3.2 DI-D A/T.

I have a problem of power loss and I hope that my post is under the right heading.

In fact, my Pajero got a lack of power problem further to injector nozzle replacement. Actually, I have used my old engine parts which was damaged at low mileage because of an overheat problem.

So, I have tested the relative injectors at a diesel service company and they reported that they are good.

I have installed the whole injector holder assembly of the old engine with its nozzles and the surprise! The engine starts well and very smooth, no more black-smoke…

But after a road test, I noticed an important power loss at low engine rpm and especially at high rpm. The vehicle top speed is only 150 Km/h!

So, I gone back to the diesel service company and I requested them to use only the nozzles of my old engine and install them on the injector holder of my vehicle. There is some improvement but not enough

I am confused, before spending money in new injectors, I want to know the problem origin. Are they the nozzles themselves which was declared in good condition by the diesel service company or these last ones cannot test and install on the right way this kind of diesel injectors (two spring injectors)

Knowing that the injector nozzle only was replaced and the injector holder inner parts were not disassembled.

Does anybody have this problem after injector nozzles replacement?

Your support on this issue will be highly appreciated

Thanks,

[Bigwill]

I would appear to me that you have done enough experimentation with different injectors to rule them out as a source of your problem. In my experience (see my other posts) the fuel injection pump is more often the cause of power loss. If your spare engine still has the pump intact which can be swopped in, that would be my next step suggestion. If not you will really have to take the pump to a reputable Mitsubishi diesel workshop for evaluation. This could turnout to be a rather expensive repair if its performance is found to be below specification. Note: Not all diesel workshops are able to work on the Mitsubishi pump. Most Bosch shops may be able to.

[gaaloul.med]

Hi Bigwill,

Thank you for your reply.

I have already installed the injection pump of my spare engine but what a bad news!!!

After pump installation the engine starts well and inside city road test - 40 km approx - everything seems unchanged

So, I decided to make a highway road test. After 50 km of driving I tried to push the vehicle to the top speed and the surprise! The top speed stills the same 150 km/h

But the worst, after 2 minutes of running at 150 km/h, I released the accelerator pedal and the check engine lamp illuminates

I stopped the vehicle, engine shutdown and restart, the lamp still illuminates continuously. Idling at 1000 rpm, vibration, a lot of black smoke when I try to accelerate and don’t overtake 2000 rpm when the accelerator pedal is fully pushed. But no black or white smoke at this engine speed (2000 rpm).
I have checked and cleaned all harness connections but no improvement

In fact, I will bring my car to Mitsubishi dealer to check what diagnosis code will be revealed and I would put you informed.

With regards,

[gaaloul.med]

Hi everybody,

I am back with some news.

Since, I am a dealer network manager in a Mitsubishi local distributor (but for L200 range only). I have called my colleague in workshop to check, with MUT-III diagnosis tool, what DTC is appeared.

The DTC is 48 – GE: Governor Electronic, which regulates the engine speed, is damaged

So, I managed to check with Bosch diesel if I can install the governor of my second pump instead of the damaged one and I can later put an order for a new GE part in order to save my second injection pump.

The part is not available at Bosch diesel Tunisia and the delivery time is 02 months approx

For your reference:

The injection pump Bosch part no. is F 019 Z1D 007 (Mitsubishi part no.: ME190711)
The relative GE Bosch part no. is: 9 443 613 373

I will put you informed according to the news.

With regards,

[gaaloul.med]

Hello everybody,

There is some good news

After the Bosch service refusal to perform the defected part replacement because they have not the Covec/VRZ testing machine. I decided to replace the GE: Electric Governor - by myself

I have performed the GE disassembly without removing the injection pump from its location in the engine (but of corse after intake manifold, injection pipes… removal). I have marked the old GE position and installed the new one in approximately the same position

During the new part installation, I left the GE bolts not fully tightened. In fact, I can later move the new GE while the engine running.

After the entire engine parts reassembly I have started the engine. It starts very well but idling at 1000 rpm and after some accelerations it idling at 1500 rpm!

So, with a plastic hammer I tapped the GE from the back to move it, a little bit, forward. Moving it forward decrease fueling and moving it backward increase fueling.

After a second test the engine working quite well. Idling at 750 rpm, no black or white smoke and performing better than before. But not as good as it was before injector nozzles replacement

To finish, I fully tightened the GE bolts and a road test. Every think is OK

So, I succeed to perform the pump repair at home for which Bosch diesel Tunisia declares that is impossible to replace the pump GE without the relative test machines and simply they are not able to repair any Bosch/Zexel VRZ pump . What a shame!

[RoelfleRoux]

Thank you for keeping us updated with this very informative thread.

[gaaloul.med]

Hello,

Thank you very much for your reply "RoelfleRoux", I appreciate

However, just for your reference, I would like to inform you that I have already ordered the whole injectors (injector holder & nozzle assembly) from Bosch Diesel. The delivery date is two months from the order date.

In fact, the Bosch part number 9 430 613 989 have the half price of the same Mitsubishi part no. ME203961. The unit price is the equivalent of 250 Euro for Mitsubishi injector and only 120 Euro for the Bosch injector. Actually they are the same and both of them are made by Zexel/Bosch

[llec999]

Hi everybody,

For your reference:

The injection pump Bosch part no. is F 019 Z1D 007 (Mitsubishi part no.: ME190711)
The relative GE Bosch part no. is: 9 443 613 373

I will put you informed according to the news.

With regards,

Hi, I am also struggling with dieselpump/lack of power. Did you check- are the model numbers of the 2pumps you have the same. Are both ME190711? What year is your car? And the spare engine?


Regards, andvthanks for your posts

Llewellyn

[gaaloul.med]

Hi every body,
I am sorry for no feedback from my side for a long time.
I was busy by the engine rebuild. But I have much good news too!!!
First of all, let we going back to the original matter “the lack of power”. As I presumed before the problem origin was the injectors. Following to the injector nozzle holder assembly replacement, parts ordered from Bosch as informed before, the engine get back its original performance as a new one!!!
Unfortunately, the happiness period does not still for a long time. Under heavy solicitation of the vehicle on the beach sand I noticed that there is an engine overheat!!!
The engine still performs very well, no black or white smoke but there is abnormal noise (knocking) coming from the cylinder block!!!
The first step, I checked the radiator by a specialist and he found that 50% of the radiator is jammed by tartar deposits and we presumed that on on-road use the radiator still able to cool down the engine because of the good air flow but still not on off-road because the hard solicitation and the limited air flow.
I proceeded to engine disassembly and after check the results are the following:
- The cylinder overhead is OK. Oops!
- The piston No. 4 is deeply scratched
- All the 04 cylinders are a little bit scratched
- The rest of the moving parts are OK
I managed to a full engine rebuild with new pistons +0.50 over-size and of corse with cylinder re-bore. But the surprise was at Mitsubishi distributor: +0.50 pistons are available but not the relative piston rings!!!
Standard ones all of them are available. So, I managed to solve the problem differently.
I bought a cylinder sleeves are made by ARCO – Taiwan. We bored the cylinder block and installed them with the standard pistons and piston rings + of course engine overhaul gasket kit.
The crankshaft bearings and connecting rod bearings are replaced by new ones too. Just to get a full rebuilt engine as new one because I am planning for something particular for this 3.2 DID!!!
to end with, New radiator of course.
Note: all the parts are genuine ones except the cylinder sleeves because are not provided by Mitsubishi
The engine working now really perfect and really powerful as a new one. But this is not enough!!!
After 2000 Km of driving I managed to do the following modifications:
- EGR out
-Catalytic converter out (+10 HP approx)
-K&N permanent air filter (+ 5 HP approx)
-Finlay a power-chip made by P-tronic (+40 HP)
A total of approximately 220 Horsepower and 500 Nm!! Believe me that the Pajero after all these upgrades has got a full metamorphose.
Incredible accelerations and phenomenal top speed, the results are the following:
Acceleration 0-100Km/h: Before 11.5 Sec - After 8.2 Sec
Top speed: Before 185 Km/h – After 200 Km/h (on vehicle speedometer)
Videos will be uploaded soon on Youtube. I will put you informed.
As a prevention, in order to preserve the engine reliability, I used an additive to the engine oil that increases 04 times the engine oil anti-friction features (1400 kg/cm2 instead of 400 kg/cm2 without). This additive made by ECOTEC France called T2S.
I hope that with all these precautions the engine will resists to the horsepower increase.
Any supplementary suggestion from your side will be highly appreciated.
Kind regards,

[gaaloul.med]

No comment from your side!