Toyota corolla 2.0D saloon poor performance issue

[pwuser149035821188]

respected @Xulfiqar

I had bought a Toyota Corolla 2.0D Saloon, 2003 model almost an year
ago. The car is running fine at start but later have concerned about its pick-up. I
have to push the accelerator pedal, almost to floor, to reach 100 km/h
and I can reach that speed (100 km/h) on very much a clear road. If em not on motorway I find it difficult to reach even at 80 km/h on long
route. Can you make your opinion ? And please guide me that what engine part can be
the responsible of poor acceleration so that I may go for its repair.
The problem remains there even worse after air filter / oil change and diesel
intake adjustment by mechanic. The car has now a max 40KM/H speed @full throttle leaving behind blue smoke,heavy engine noise along vibration, today vehicle is not being start up by startup motor or 4 men on DHakka program, diesel injection pump almost repaired 3rd time from different diesel laboratory here in faisalabad. Looking forward for your technical guide lines and support,

[pwuser149035821188]

@Xulfiqar
wiating for your kind response plz

[Xulfiqar]

You need to get your injectors and pump set by a real and proper diesel shop, The usual morons with shops have uncalibrated test benches, they hammer the springs open and furthermore dont know how to set the internal pump pressure (which is critical for correct timing advance)

After you get it back from the service job, you need to install it with help of dialgauge to get it at the correct timing sequence in relation to the crankshaft angle.

All this is only good if your engine itself is good, how bad is the compression?

[pwuser149035821188]

thanks for reply i really appreciate your response, you are a mentor

along fuel injection maintenance according to your guidelines i am going to conduct all following test of said vehicle too. make correction if em wrong on any of following tests

1. Tappet gaps
2. Cold start device on pump
3. Engine temperature
4. Engine oil pressure
5. Engine injection pump
6. Injection timing
7. Compression tester to see if cylinder are generating enough air pressure to ignite the fuel
8. Air to fuel ratio
9. Fuel pressure

[Moderator]

you can check thread by @agoodfriend as well

[Moderator]

[helper_learner]

@pwuser149035821188
This is the thread @Moderator bhai is talking about i think

[capsat]

if you are in karachi take your vehicle to this place.

very reasonable OEM Shop for Japanese Diesel vehicle

diesel injection pump almost repaired 3rd time from different diesel laboratory here in faisalabad.

simply remove the complete Injector pump from vehicle and send to this shop

call the person named above he will calibrate the pump and send back, install in your vehicle, crank start and good to go. Use reference of @Xulfiqar in USA

[Moderator]

sir @capsat @Xulfiqar is he same Mr. Rafique who's been referred to diesel motor owners' in past at DELPHI shop somewhere on sh.faisal in khi if i recall correctly ?

sirs, am truly impressed with bonding you guys enjoy even today with tech-shops and individuals, over so many years. list has a double digit figure if i compile.

my respects to you all.

[capsat]

it is just like that you are welcome.
but that will not neutralize my opinion about PakWheels Moderators at all,

[helper_learner]

but that will not neutralize my opinion about PakWheels Moderators at all,

🤦‍♂️🤦‍♂️

[burhanahmadbunny12]

im also face this probem can anyone tell

[capsat]

im also face this probem can anyone tell

refer to post #8 above please.

[pwuser149035821188]

at last problem solved by repairing of diesel fuel pump as its required to change rotary and sum other parts and calibrating as per toyota 2c user manual instructions.all above mentioned tests are ok.
i tried for Qabli 2c pump but not available right now in pakistan because no one spare it from a 2c engine for you. so i have to go with repairing.
but mileage is not satisfactory as vehicle give 15km/litre, while once it was 19KM/Litre any suggestion @Xulfiqar the legend please.
following mentioned workshop do their best and about milage they said its enough for this model at normal pump setting , they have to retired/advance the pump if i have to get 19KM/Litre

Great Job done Habib the mechanic at madni auto workshop lari addah, Faisalabad contact@03217684974

[pwuser149035821188]

@Xulfiqar @capsat @Moderator

[Xulfiqar]

what was the fuel delivery volume and internal pressure at 2000 pump rpm? and what pressures were the nozzles breaking open? Nozzles were adjusted with shim stack or treet blade? or hammering the springs?

is the pump cold start device working? does the pump advance timing at 600 pump rpm?