Diesel Fuel Injection System Help Desk

[Dieseldude]

Sir DieselDude,

One happy customer with Central Diesel. Sir Jake, Antonio, Karen, Nonoy, Cons, thanks for taking care of my ride. Sir Jake I didn't had the chance to meet you personally sir but your staff was very accomodating and courteous. I just had my innova supply pump replaced yesterday, tried it, drove it, no problem wala ng stalling, choking at pino na ang takbo. I would recommend Central Diesel anytime. Two thumbs-up sir Jake. Thanks again.

Kalyehero16

Happy to be of service to you. Would have been nice to meet a fellow tsikoter. I was probably out on a client call when you came. Drop by anytime when you are in the area.

DD

[Braguldo]

Sir DieselDude,
Thank you for fixing my Fuego problem, nag iistart na siya at umaandar...although after 2 days nabitin ako climbing a steep road after shifting to second gear....ayaw tumuloy ng krudo hangang sa nag stall na....i just did a manual pump of the fuel filter and then umandar na....sometimes then the idling would go down so kailangan ko bombahin...i guess that's the drawback for using surplus parts...no guarantee on when it will fail....the staff of Central Diesel were very accomodating and as written in the post they would not jump into telling you to replace this and that without testing....regards to Karen, Antonio, Jayson and Miss Inday for making my puyat worthwhile.

[ISO4113]

Good Afternoon Tsikoteers and Diesel Junkies.

Below are pictures from Dieseldude's workshop, this is one set of Ford Ranger 2.5L TDiC injectors with blown nozzle tips. The extreme damage on the nozzles are not because of normal wear and tear but due to modifications in engine management electronics.











Regards,

ISO4113

[locoroco777]

awww! so talaga palang mas maagang masisira ang injectors pag nag lagay ka nung mga chip chip nayun...(assuming chip mod yung ginawa dun sa ranger)

how bout the alcohol injection something? will it also do harm like this? or can it help prevent this?

anothe question. yan ba yung piezo-electric injectors na tinatawag?

[ISO4113]

awww! so talaga palang mas maagang masisira ang injectors pag nag lagay ka nung mga chip chip nayun...(assuming chip mod yung ginawa dun sa ranger)

how bout the alcohol injection something? will it also do harm like this? If installed incorrectly, it could.or can it help prevent this?be sure about the modifications you install in your vehicle, it should be model specific or recommended by the vehicle manufacturer. Mahirap na magsisi after mag lapse ang warranty mo sa modification mo/and car then makita mo ang negative effects sa kotse. Some modifications work, though we always advise to keep it in factory spec.

anothe question. yan ba yung piezo-electric injectors na tinatawag?Hindi pa ito piezo-electric CR injectors. These are magnetic-solenoid valve injectors; wala pa kaming na e-encounter na piezo electric injectors in cars being sold here.

Regards,

ISO4113

[Incubus007]

Good Afternoon Tsikoteers and Diesel Junkies.

Below are pictures from Dieseldude's workshop, this is one set of Ford Ranger 2.5L TDiC injectors with blown nozzle tips. The extreme damage on the nozzles are not because of normal wear and tear but due to modifications in engine management electronics.











Regards,

ISO4113

Hi,

Would it be OK if you could tell us the brand or the kind of modification that did to this severe nozzle damage?

Salamat!

[locoroco777]

Regards,

ISO4113

thanks for the info sir...

which leads me to this....Is their such a thing as a manufacturer recommended engine mod?

[Dieseldude]

thanks for the info sir...

which leads me to this....Is their such a thing as a manufacturer recommended engine mod?

I don't think casas will have any mods for their engines. They may have some mods like mags, sounds, etc......

Word of advice: Ask around, ask the casa's Service Advisor/Managar before considering any engine mods.

[Dieseldude]

Hi,

Would it be OK if you could tell us the brand or the kind of modification that did to this severe nozzle damage?

Salamat!

I will see. We are still conducting an investigation on this matter.

[Wh1stl3r]

awww! so talaga palang mas maagang masisira ang injectors pag nag lagay ka nung mga chip chip nayun...(assuming chip mod yung ginawa dun sa ranger)

how bout the alcohol injection something? will it also do harm like this? or can it help prevent this?

anothe question. yan ba yung piezo-electric injectors na tinatawag?

Bro I think mas accurate to say mas maagang masira ang injectors pag overadjusted ang chips. Also depending on what make of vehicle and brand of chip. Some makes are already carrying heavy fuel loads in stock form kasi. And yun din siguro, smaller injectors can only take so much.

[Dieseldude]

Bro I think mas accurate to say mas maagang masira ang injectors pag overadjusted ang chips. Also depending on what make of vehicle and brand of chip. Some makes are already carrying heavy fuel loads in stock form kasi. And yun din siguro, smaller injectors can only take so much.

You are right.

More fuel = more horsepower. But combustion temperatures and pressures increase as more fuel is injected.

This is what happens when the ECU or an add-on device pushes the CR injectors to discharge more fuel than what the engine can safely handle.

[locoroco777]

Bro I think mas accurate to say mas maagang masira ang injectors pag overadjusted ang chips. Also depending on what make of vehicle and brand of chip. Some makes are already carrying heavy fuel loads in stock form kasi. And yun din siguro, smaller injectors can only take so much.

ahh ok sir...so proper adjustment is the key pala...

[timo07]

ahh ok sir...so proper adjustment is the key pala...

It's not only proper adjustment. But as what he said on the last part, the injector's fuel delivery might already be optimized for the factory designed output. It is logical for manufacturers to optimize the parts that they install to minimize product cost.

The probable fuel over-delivery plus what DD mentioned on increased combustion temp and pressure makes for a disastrous combination.

[Wh1stl3r]

It's not only proper adjustment. But as what he said on the last part, the injector's fuel delivery might already be optimized for the factory designed output. It is logical for manufacturers to optimize the parts that they install to minimize product cost.

The probable fuel over-delivery plus what DD mentioned on increased combustion temp and pressure makes for a disastrous combination.

The problem sometimes with factory tune is that sometimes it is too lean. You tend to rev the engine quite a bit more and this could also contribute to premature nozzle tip damage. Specially if you have a heavy foot.

I agree a lot of makes these days are already running rich from the factory. In these cases putting more fuel in can't be good. But there are a lot of engines out there that are definitely sub optimal in tune. If you're still running lean, and are not sure on how much more pressure your nozzles can take, getting a relatively small gain in power is key.

[Dieseldude]

Hello Tsikoters!

If you noticed we have surpassed 100,000 views on this sticky thread. For those who read, asked questions, and contributed.....thank you! Let's continue to make this thread active. I will try my best to answer the best way I can. CHEERS!

DIESELDUDE

[hammerhead2]

hello. just seeking advice seeing that this thread has been very helpful. have a starex vgt recently serviced for 15k pms. i think it has lost power. some of the symptoms are: 1. upon initial start, it shakes about 4 or 5 times like it is losing its going to die then it normalizes. 2. when in 2nd gear, it sometimes gets stuck at 2k rpm. pushing the pedal further does not elicit any response. pumping the gas pedal 2, 3 or 4 times will let it speed away. 3. i have a hard time overtaking. i dont get the turbo feel it seems. however it still reaches 160kph. just brought it to baguio but i felt the power loss more going up kennon. really had to push and pump gas pedal. i told the casa about this but during testing they said they didnt feel what i described. however they said their gds is broken. i think its the device that reads the car computer. i was asked to bring it to another casa which is notorious for ridiculous charging. they have a gds that works. pls help so that i can avoid getting duped. ty!

[Dieseldude]

hello. just seeking advice seeing that this thread has been very helpful. Thank you.

have a starex vgt recently serviced for 15k pms. i think it has lost power. some of the symptoms are: 1. upon initial start, it shakes about 4 or 5 times like it is losing its going to die then it normalizes. 2. when in 2nd gear, it sometimes gets stuck at 2k rpm. pushing the pedal further does not elicit any response. pumping the gas pedal 2, 3 or 4 times will let it speed away. 3. i have a hard time overtaking. i dont get the turbo feel it seems. however it still reaches 160kph. just brought it to baguio but i felt the power loss more going up kennon. really had to push and pump gas pedal. Your car within warranty? Is your "check engine light" on? Does engine smoke a lot, black or white smoke? Have you checked/replaced your fuel filter?

i told the casa about this but during testing they said they didnt feel what i described. This is possible if the fault is intermittent. Fault may not have been active when you visited casa.

however they said their gds is broken. i think its the device that reads the car computer. Correct, GDS is their scan tool.

i was asked to bring it to another casa which is notorious for ridiculous charging. they have a gds that works. pls help so that i can avoid getting duped. ty! I will PM you.

[torogi kid]

Hello Tsikoters!

If you noticed we have surpassed 100,000 views on this sticky thread. For those who read, asked questions, and contributed.....thank you! Let's continue to make this thread active. I will try my best to answer the best way I can. CHEERS!

DIESELDUDE

thanks God for someone like you, for your unselfish dedication in helping us understand our engines. more power to you! mabuhay si DD.!

[hammerhead2]

Your car within warranty? Is your "check engine light" on? Does engine smoke a lot, black or white smoke? Have you checked/replaced your fuel filter?
there is no check engine light. fuel filter was replaced about a year ago when i did my 10k km pms.

This is possible if the fault is intermittent. Fault may not have been active when you visited casa. got it.

Correct, GDS is their scan tool.

I will PM you. [/QUOTE] i got your pm. thank you.

[Dieseldude]

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