Diesel Fuel Injection System Help Desk

[akosijepoii]

effect yung magiging pdeng bad effect nya sa engine
pag na ka block egr ko on my patrol zd30 engine..or ano ang pros and cons??

[markstep128]

Hi sir Dieseldude, I have a 4m40 3 door Pajero and my problem before was my fuel consumption. So What I did was change the zexel noozles and had it pressure test, after that sir what i noticed is that my fuel consumption stayed the same when I rev up to 3k or above RPM experience black smoke and when I drive it full pedal it's hard to push beyond 80kms/hr. By the way sir I just changed new air filters. Are you saying that there was no improvement after replacing the nozzles?

Any advice sir? I'm thinking to just having it calibrated. Will it solve the problem? Thanks. Check EGR before considering calibration.

Yes there was only 1km/liter improvement after I changed my noozles. Also I let the mechanic adjust delay of the injection pump para maging matipid sya.

Is there an improvement in the fuel consumption sir if ma block yung EGR?

[Dieseldude]

Yes there was only 1km/liter improvement after I changed my noozles. Also I let the mechanic adjust delay of the injection pump para maging matipid sya. Timing is supposed to be set to specs.

Is there an improvement in the fuel consumption sir if ma block yung EGR? Fuel consumption and smoke will improve if a malfunctioning EGR is repaired or blocked.

[Dieseldude]

effect yung magiging pdeng bad effect nya sa engine
pag na ka block egr ko on my patrol zd30 engine..or ano ang pros and cons??

Walang bad effect sa engine kung tama ang procedure sa pag block ng EGR.
Engines with blocked EGRs will have higher NOX emissions at idle and part load operation.

[Pidok]

Sir Dieseldude, may electric supply pump ba yung montero latest model feeding diesel to the mechanical high pressure pump.

[Dieseldude]

Sir Dieseldude, may electric supply pump ba yung montero latest model feeding diesel to the mechanical high pressure pump.

Walang electric fuel pump ang montero dahil integrated na sa high pressure pump ang suction/feed pump.

[Pidok]

Walang electric fuel pump ang montero dahil integrated na sa high pressure pump ang suction/feed pump.

thank you sir sa info..naitanong ko kasi balak ko kasi ako magpalit ng fuel filter ng montero, baka kako mahirap magprime ng suction ng hp pump kung walang electric feed pump. so hand pump lang kelangan to prime the suction after fuel filter replacement?

[Dieseldude]

thank you sir sa info..naitanong ko kasi balak ko kasi ako magpalit ng fuel filter ng montero, baka kako mahirap magprime ng suction ng hp pump kung walang electric feed pump. so hand pump lang kelangan to prime the suction after fuel filter replacement?

You are right.

[juncallueng]

Sir Dieseldude, My Toyata innova diesel 2006 model stalled 3 times when we were going up to Tagaytay yesterday. It stalled again 1 more time when we were going back home in SLEX. Napansin ko nag stall say nuong 100kph ako, pero 80kph or less ok naman. I have no black smoke or no noticeable lost of power. Im not sure it its just my fuel filter (I never remembered changing them) or is about the Suction Control Valve.Will you be able to determine if its just my file filter or SCV. If it is the SCV that causing the problem how much will it be and how long will it take to fix it? Is central diesel open today or tom? Thanks

[Dieseldude]

Sir Dieseldude, My Toyata innova diesel 2006 model stalled 3 times when we were going up to Tagaytay yesterday. It stalled again 1 more time when we were going back home in SLEX. Napansin ko nag stall say nuong 100kph ako, pero 80kph or less ok naman. I have no black smoke or no noticeable lost of power. Im not sure it its just my fuel filter (I never remembered changing them) A blocked fuel filter will show on your dashboard. The filter indicator lamp will be continuously lit. Fuel filters need replacement at the prescribed interval, 1 year max if I remember right. An old filter can disintegrate and be pulled in by your fuel pump. Damage to your fuel system can be very extensive.

or is about the Suction Control Valve.Will you be able to determine if its just my filter or SCV. If it is the SCV that causing the problem how much will it be and how long will it take to fix it? Is central diesel open today or tom? Thanks Yes, this can be checked. But as I said, your fuel filter needs immediate replacement. Repair if necessary will take a day. Yes, we're open today.

[vincr]

Sir Dieseldude, I have a pajero 4d56 TDIC, A/T, is there a way to reduce the rpm between gear change? currently, I need to reach 3k rpm before it shifts, is there a way to reduce it tio 2500 or 2250 rpm? I have recently changed my ATF but the shifting is still the same. Thanks

[Dieseldude]

Sir Dieseldude, I have a pajero 4d56 TDIC, A/T, is there a way to reduce the rpm between gear change? currently, I need to reach 3k rpm before it shifts, is there a way to reduce it to 2500 or 2250 rpm? I have recently changed my ATF but the shifting is still the same. Thanks

I believe there is a dedicated Tsikot thread for autotransmissions. I will try to help you though. Adjust/loosen your downshift cable. Give it some slack.

[vincr]

I believe there is a dedicated Tsikot thread for autotransmissions. I will try to help you though. Adjust/loosen your downshift cable. Give it some slack.

Will try it, thanks sir and Happy Birthday!!!

[Dieseldude]

Will try it, thanks sir and Happy Birthday!!!

You're welcome, and thank you for the greet......

[cocoy]

sir dieseldude.. just a question.. what is the truth behind the diesel fuel of the different companies around? is the quality different? of is it just the cleanliness of the fuel itself from a particular company.. i have noticed in my starex.. that if i buy diesel from Petron, it feels really sluggish, and the exhaust smoke is noticeably black.. and at idle the engine clatter is also louder. but when i buy diesel from small players.. i can feel the power is better.. and the engine is quieter.

i just wonder has anyone done any test on the differrent diesel fuel from the different suppliers?

[boner1]

I would like to help! Throw in your questions regarding problems with your fuel systems (injection pumps/ injectors/ turbochargers/ electronic systems/ etc.....) Then you guys take it from there...................if I can be of help, why not!

Good morning, sir Dieseldude,

I need your inputs regarding my Isuzu Trooper 4jx1 2002 model. It is locally bought from Isuzu Inteco, has always been casa maintained. I sent you a PM a few days ago, not sure if it was the right way to send a note to you. Would appreciate to know the contact details of your office or shop.

Thank you.

[sotel]

ano po problema pag gray smoke?

[Dieseldude]

sir dieseldude.. just a question.. what is the truth behind the diesel fuel of the different companies around? is the quality different? or is it just the cleanliness of the fuel itself from a particular company.. I don't know.

i have noticed in my starex.. that if i buy diesel from Petron, it feels really sluggish, and the exhaust smoke is noticeably black.. and at idle the engine clatter is also louder. but when i buy diesel from small players.. i can feel the power is better.. and the engine is quieter. I've been on Petron for years......no complaints so far. I'll make it a point to try other brands on my future out of town trips. Thank you for sharing your experience.

i just wonder has anyone done any test on the differrent diesel fuel from the different suppliers? I haven't seen any research document on this matter.

[Dieseldude]

ano po problema pag gray smoke?

Hindi ko alam. Kulang sa detalya ang post.

[Dieseldude]

Good morning, sir Dieseldude,

I need your inputs regarding my Isuzu Trooper 4jx1 2002 model. It is locally bought from Isuzu Inteco, has always been casa maintained. I sent you a PM a few days ago, not sure if it was the right way to send a note to you. Would appreciate to know the contact details of your office or shop.

Thank you.

Sent you PM.