Pinin 2.0 GDI 5 door - multiple errors / problems
Hello
I am new to the forum and I come here to ask you to help in some situations.
For a long time now I wanted to buy a Pajero Pinin because I had a little passion for the machine.
Fortunately I managed to get a second hand but it lacked a lot of "attention" from the previous owners.
Initially it presented the following errors:
P0420
P0300
P0190
Unstable idle
Braking force not constant despite the applied force on the pedal
The P0300 error was solved by replacing the ignition coils, as the previous ones presented a lot of corrosion inside the pipe.
The P0420 error disappeared with the change of the coils, while at the same time replacing the exhaust pipe and took the opportunity to remove impurities and clean the catalyst.
Error P0190 continues to appear (engine light on) at idle. At higher rotations it does not appear, although there is a clear lack of force in the engine. This is easy to verify in the accelerations and recoveries of Pinin against the announced by the manufacturer, being quite different ...
I've already changed throttle, fuel tank filter, o-rings, checked fuel tubes.
I checked and disassembled the high pressure pump and cleaned it.
I removed the ramp from the injectors and the injectors, cleaning all these items.
This problem still exists ...
However appeared new problem that of left the Pinin stopped !!!
It started by not accelerating more strongly and not exceeding 2500rpm, which in these situations seemed to lack power and cut the engine.
I tried to check all the admission and chips, and then it got worse and now it does not exceed 1500rpm with the same problem ...
Does not indicate any error code !!!
Please, I ask for your help or ideas so that I do not have to give up this small machine that I have been looking for ...
Hello I checked the MAF,
Hello
I checked the MAF, checked the connections and measured the voltage. It's all normal.
I have already performed the procedure for relearning the idle speed. It remains erratic ...
The problem now is not to accelerate nor to exceed 1500rpm, and if you accelerate or try to pass 1500rpm, it cuts off the engine and seems to fail the ignition.
As for cleaning, I cleaned the intake manifold with oven cleaning spray, and water under pressure.
The high pressure pump has been completely disassembled, cleaned and polished.
Together I send video link that I used to guide me ...
As for the insectors it was enough to pass with a cloth in the nozzle of the injectors that they were cleaned.
https://
https://
I have no way to measure the
I have no way to measure the pressure after the high pressure pump.
I checked and cleaned the filters of the injectors, the filters being in conditions.
I also cleaned the nozzle ramp.
The high pressure pump had no filters !!! I have already ordered them to replace them, so the problem will not be due to obstruction in the entrance or exit of the pump.
When driving the car, it gives the feeling of lack of power, which is visible by the ability (or lack thereof) of acceleration of the car. Therefore the error in the reading by the sensor may not induce this behavior.
High pressure pump
That sounds, like the io is operating only with the "normal" fuel pump. When the hp pump kicks in do you feel the real output of the engine.
Is the gdi lamp on the dashboard? When the accelerator pedal is depressed to exceed the 3500 rpm (at least in my 1.8 gdi) is when the gdi pump kicks in (gdi lamp should come off on the dashboard)
On the 2.0 GDI the high
On the 2.0 GDI the high pressure pump is mechanical and is always working because it is attached do the camshaft. I the engine rotates, the camshaft will operate the high pressure fuel pump.
The 1.8 high pressure pump is diferent but similar in operation. The only diference is that the 1.8 as a separate fual pressure regulator, and the 2.0 as a built in pressure regulator. The video above is for the 2.0 high pressure pump.
There seems to be a misconception here...
That sounds, like the io is operating only with the "normal" fuel pump. When the hp pump kicks in do you feel the real output of the engine. Is the gdi lamp on the dashboard? When the accelerator pedal is depressed to exceed the 3500 rpm (at least in my 1.8 gdi) is when the gdi pump kicks in (gdi lamp should come off on the dashboard)
On the GDI engines (both the 1.8 4G93 and 2.0 4G94) the high pressure fuel pump does not "kick in" at a particular rpm - as has been mentioned, it is a mechanical pump, driven off of the cam shaft - if the high pressure pump is non functional the engine will not run because will be insufficient fuel pressure to inject fuel into the combustion chamber.
I remember reading another
I remember reading another forum mentioning a similar problem few years ago.. and everyone concluded the problem was the hp pump (hope not in this case)
One time i had a similar problem, i can barely reach 30 km/hr, the mechanic/electronic guy tell me he erase the code of a TPS failure and from that time, my io never had the same problem again.
I'm not suggesting the problem is not the high pressure pump.
At this point I have no idea where the problem lies, although the symptoms do suggest insufficient fuel, so I would not rule out a defective high pressure pump as a possible/probable cause - what I'm trying to explain is that the GDI fuel system does not function in the way youthink it does.
A conventional MPI (multi point injection) system uses a similar "in tank" fuel pump which is rated to deliver somewhere between 30~100 psi, it can vary from one vehicle to another - this is enough pressure to spray fuel into the intake manifold which is usually at or below atmospheric pressure (unless the vehicle is turbo charged), a GDI (gasoline direct injection) system injects the fuel directly into the combustion chamber where the pressures are significantly higher - if the pressure in the fuel rail is less than that in the combustion chamber, rather than fuel being sprayed into the chamber, the compressed air in the chamber would be vented through the injector into the fuel system - this is the reason a high pressure pump is required.
The documentation I have (for the 1.8 GDI) shows 328 kpa (approx 48 psi) as the requirement for the low pressure pump and 1 mpa (approx 145 psi) as the minimum for the high pressure pump, with the norm being between 4~6.9 mpa (580~1000psi) - I trust now that you see the numbers you have a better picture of why the engine cannot possibly run the way you suggested.
As far as I know, the 1.8 GDI system will report an error if the pressure in the high pressure side of the fuel system is out of tolerance, I have no idea if the 2.0 does the same.
Hello The 2.0 GDI has the
Hello
The 2.0 GDI has the same type of error codes for the Gdi system.
In reality as i told before, the high pressure pumps are diferent because one as a separate fuel pressure regulator attached to the pump.
News...
My pinin still has the problem of not acelerating above 1500 rpm and cutting the engine (seems that way) but finally it showned a error.
Actually 3 errors...
P0100
P0105
P0110
All are related do the maf.
I a going to try and test the maf and replace if necessary.
Them i will go to the local mitsubishi dealer to ask them to test the fuel pressure and tell me what us the problem.
HELP URGENT
Hello.
news about my pinin.
After the P0100, P0105 and P0110 errors, i replaced the maf sensor and the errors disapered.
but the problem with the throttle is still there.
I sent the car to the regional mitsubishi dealer and the result came today... New high pressure pump needed!!!!
I need help to find (buy) a new or rebuilt pump.
The part number is:
MD367150 / E3T10371
Hello The problem is that the
Hello
The problem is that the pump is very expensive to buy new from any Mitsubishi dealer. And none of the dealers will open the pump to see what is the problem!
In my pump there were two issues. Some residues from the fuel that were in the 3 plates that make the valves and did not alow a good sealing and wold loose pressure, and there was a lot of debris (ruber, pastic) that came from some place (probably the fuel tank) and clogged the relieve vales, lossing all pressure back to the tank. Also the pressure regulator was stuck, and i had to adjust the pressure again (this is very complicated to do!!!)...
I know that it was a risky move but i was confident and my background was helpfull.
If any one needs help, just say...
High pressure fuel pump
High pressure fuel pump repair.
Hello
I will be more thant happy to help any one to repair and adjust the fuel pressure.
Notice that the 2.0 and the 1.8 (GDI) have diferent pumps. The 1.8 has a pump and separate (atached) fuel pressure regulator. In the 2.0 the fuel pressure regulator is integrated in the pump.
But i believe that the principle is the same and i can allways help in the 1.8 according with what i have seen in the 2.0 pump.
I will try to make a DIY procedure but i have to find new pictures online because i did not take pictures when repairing my pump.
ABS light
You may have a faulty sensor or broken wire. Try to locate all sensor on the car and test them all. I had the rear one with a broken cable once.
If you do not see any broken line, it still could be broken inside the insulation. Here a couple of video to help testing them....the second video have two test, try the second method when it show what a faulty sensor does, you do not have to pull it out of the car to test.
https://
https://
Happy io
Can the OBDII reader read anything at all?
Not all of the Pinins are OBDII compliant, if yours is, then you need a reader that car read the ABS codes, if it isn't (mine isn't), you may be able to flash the codes using a jumper wire in the under dash socket.
For what it's worth ABS sensors can fail in multiple ways - the system does a basic resistance check on each sensor at power up and will set a particular code if it's missing a sensor, and then, once the vehicle starts to move, it does a second check to see if the sensors are functional, and will set a different code - failed sensors are among the most common failures, but they are by no means the only things that fail.
Syndicate
High pressure pump
Hi, how do you cleaned the hp pump and injectors (hear some bad stories about ultrasonic clean)?
The erratic idle can be corrected with gdi ecu relearning procedure (search in the forum)
Do you replaced the air filter? Maybe a clean of the MAF sensor can help
The sparks plug are the correct ones for GDI? (There are 4 different ones, varies by year of fabrication)