Diesel Fuel Injection System Help Desk

**glenn manikis** · October 2nd, 2013 05:08 PM

Originally Posted by crazy_boy

Central Diesel in Q.Ave. cor. Sct. Magbanua

Home | Central Diesel (Philippines)

thank you sir!!!

**spacie** · October 6th, 2013 07:47 PM

sir pwede magtanong? ask ko nga po kung may idea kayo sa delica spacegear 4d56 engine automatic tranny subic?

parang sinisinok, nawawalan ng hatak pag tinapakan ko gas pero pag gianalit ko ng husto deretso naman takbo nya
pero pag normal lang bibilis babagal parang kinakapos ng hininga

nagpalit na po ako ng fuel filter pero replacement lang ganon parin nakakabitin pag oovertake

maraming salamat po

**debal** · October 17th, 2013 05:00 PM

sir diesel dude. tanong ko lang po ano reason bakit lakas sa krudo ng crosswind xto at 2002 na gamit ko. lumalabas po 7km/ltr. tpos may white smoke din po kahit naka idle lang sya. napa calibrate ko po sya last july. odo 250k. tia.

**Dieseldude** · October 17th, 2013 09:32 PM

Originally Posted by debal

sir diesel dude. tanong ko lang po ano reason bakit lakas sa krudo ng crosswind xto at 2002 na gamit ko. lumalabas po 7km/ltr. tpos may white smoke din po kahit naka idle lang sya. napa calibrate ko po sya last july. odo 250k. tia.

Kelan tumaas ang fuel consumption, after calibration?

**Dieseldude** · October 17th, 2013 09:35 PM

Originally Posted by spacie

sir pwede magtanong? ask ko nga po kung may idea kayo sa delica spacegear 4d56 engine automatic tranny subic?

parang sinisinok, nawawalan ng hatak pag tinapakan ko gas pero pag gianalit ko ng husto deretso naman takbo nya
pero pag normal lang bibilis babagal parang kinakapos ng hininga

nagpalit na po ako ng fuel filter pero replacement lang ganon parin nakakabitin pag oovertake

maraming salamat po

Hindi ko alam ang sagot.

Pero pa-check mo ang adjustment ng accelerator and/or transmission cables.

**debal** · October 18th, 2013 12:49 PM

Originally Posted by Dieseldude

Kelan tumaas ang fuel consumption, after calibration?

hindi po sir. bago ako nagpacalibrate ganon na consumption ko.

**Dieseldude** · October 27th, 2013 12:42 AM

Originally Posted by debal

hindi po sir. bago ako nagpacalibrate ganon na consumption ko.

Hindi maganda yung white smoke. Sana wala lang sa timing ang injection pump. Mas mabuti kung patingnan mo sa mechanic..

**uToy_Story** · November 24th, 2013 06:31 PM

Sir,

Good day.

I own a 95 JDM Pajero with 4m40 TDIC engine (A/T). It has 137,000 kms already. I regularly change my oil at 5,000 kms (including air filter, oil filter, and fuel filter). So far, I have no issues with hard starting, excessive black smoke. Fuel consumption is at 6km/L to 7km/L city, 10km/L to 12km/L highway. Never had my pump/nozzles repaired or replaced throughout my 5 year ownership.

I have read a lot of forums already (including this of course), I just want to ask for your honest opinion.

1) If I replace my exhaust pipe to 2.5 in., will this help in increasing my high speed (I target to hit around 120 to 130kms) and acceleration at low to mid speed ranges?

2) Should I replace my injectors or have it checked given the odometer reading? Though like you said before...if not broken dont fix it. I am just wondering if this could improve my FC and engine response. I got a chance to have my car dynoed and the owner said that based on their readings everything seems fine. But as the owner of the car, I believe there is still room for some improvement.

3) I have my thermostat removed from my radiator, would you recommend it having back? What is the effect of having this part removed?

As always, your opinions are very much appreciated.

More power.

**blue_gambit** · November 24th, 2013 10:16 PM

Originally Posted by uToy_Story

Sir,

Good day.

I own a 95 JDM Pajero with 4m40 TDIC engine (A/T). It has 137,000 kms already. I regularly change my oil at 5,000 kms (including air filter, oil filter, and fuel filter). So far, I have no issues with hard starting, excessive black smoke. Fuel consumption is at 6km/L to 7km/L city, 10km/L to 12km/L highway. Never had my pump/nozzles repaired or replaced throughout my 5 year ownership.

I have read a lot of forums already (including this of course), I just want to ask for your honest opinion.

1) If I replace my exhaust pipe to 2.5 in., will this help in increasing my high speed (I target to hit around 120 to 130kms) and acceleration at low to mid speed ranges?

2) Should I replace my injectors or have it checked given the odometer reading? Though like you said before...if not broken dont fix it. I am just wondering if this could improve my FC and engine response. I got a chance to have my car dynoed and the owner said that based on their readings everything seems fine. But as the owner of the car, I believe there is still room for some improvement.

3) I have my thermostat removed from my radiator, would you recommend it having back? What is the effect of having this part removed?

As always, your opinions are very much appreciated.

More power.

# 3 your engine wont reach optimum operating temp...

Sent from my GT-I9300 using Tsikot Car Forums mobile app

**Dieseldude** · November 24th, 2013 11:01 PM

Sir,

Good day.

I own a 95 JDM Pajero with 4m40 TDIC engine (A/T). It has 137,000 kms already. I regularly change my oil at 5,000 kms (including air filter, oil filter, and fuel filter). So far, I have no issues with hard starting, excessive black smoke. Fuel consumption is at 6km/L to 7km/L city, 10km/L to 12km/L highway. Never had my pump/nozzles repaired or replaced throughout my 5 year ownership.

I have read a lot of forums already (including this of course), I just want to ask for your honest opinion.

1) If I replace my exhaust pipe to 2.5 in., will this help in increasing my high speed (I target to hit around 120 to 130kms) and acceleration at low to mid speed ranges? I don't think doing this will improve the situation. Injection pump settings and turbo boost have the greatest influence on power and speed. You can measure exhaust backpressure to see if you have any restriction in your exhaust system.

2) Should I replace my injectors or have it checked given the odometer reading? Though like you said before...if not broken dont fix it. Your injectors seem to be okay, so use them. But if your injectors were inspected at our workshop, we would recommend replacing them as the nozzle flats would be deeply eroded due to high mileage wear. I am just wondering if this could improve my FC and engine response.It will not. I got a chance to have my car dynoed and the owner said that based on their readings everything seems fine. Did they measure exhaust backpressure during dynotest? But as the owner of the car, I believe there is still room for some improvement.

3) I have my thermostat removed from my radiator, would you recommend it having back? What is the effect of having this part removed? You have to put it back. Your engine will be running too hot or can overheat.

As always, your opinions are very much appreciated.

More power.