Diesel Fuel Injection System Help Desk

[batosai]

Thanks sir DD..

How about blocking off the EGR. What consequence I'm facing if I do it and what are the benifits I can get after doing it.. I'm just thingking when I block the EGR there will be no hot air (Coming from the exhaust) will go to my intake so the denser the air the more power I can squeeze from the Engine?

Please enlightened me if my thingking is wrong.

Thanks again

[rion]

I see, Thanks DD!

[Dieseldude]

Thanks sir DD..

How about blocking off the EGR. What consequence I'm facing if I do it and what are the benifits I can get after doing it.. I'm just thingking when I block the EGR there will be no hot air (Coming from the exhaust) will go to my intake so the denser the air the more power I can squeeze from the Engine?

Please enlightened me if my thingking is wrong.

Thanks again

Emissions at idle will suffer if EGR is blocked off.

Fyi, EGR is open during idle and low part load conditions only, and is fully closed when the engine is loaded. Closing it will not offer any advantage.

If EGR is stuck open, it will continuously bypass exhaust gas to the engine's intake system at all driving conditions. Some people just block it off as this is the easier way. It is better to properly repair the fault.

[batosai]

Emissions at idle will suffer if EGR is blocked off.

Fyi, EGR is open during idle and low part load conditions only, and is fully closed when the engine is loaded. Closing it will not offer any advantage.

If EGR is stuck open, it will continuously bypass exhaust gas to the engine's intake system at all driving conditions. Some people just block it off as this is the easier way. It is better to properly repair the fault.

So is there a way we can check if the EGR is stuck open?

[rion]

So is there a way we can check if the EGR is stuck open?

experience ko na EGR Stuck open. when our Pajero A/T was converted to M/T. symptoms was erratic, acceleration from 1000-1500 rpm is medyo mausok and lossing some power on those range.

[batosai]

experience ko na EGR Stuck open. when our Pajero A/T was converted to M/T. symptoms was erratic, acceleration from 1000-1500 rpm is medyo mausok and lossing some power on those range.

So sir what did you do after finding that your EGR is stuck open?

[carnibal]

what will be the effect/advantage of adding a blower fan to a Top Mounted 'Intercooler'? will it ease out the enging if the fan is activated during traffic, specially during hot days?

thank you

[rion]

So sir what did you do after finding that your EGR is stuck open?

correction pala, I don't think it was a common EGR stuck open case. it is caused by the a/t to m/t convertion. not a faulty EGR.

first, we just block the vacuum hose going to the EGR. and the symptoms are gone. then later we put blanking plate between exhuast route to the intake.

what will be the effect/advantage of adding a blower fan to a Top Mounted 'Intercooler'? will it ease out the enging if the fan is activated during traffic, specially during hot days?

thank you

IMO, I think the fan on the bottom is sufficent. unless walang fan dyan. besides, intercooler is not efficient on traffic/low rpms. they only get useful on heavy loads, heavy revving... intercooler tends to lag you on traffics unless vgt yung turbo.

kasi hindi vgt yung turbo namin. I wish I could make a pipe switch where I could deactivate the turbo pipe routing to the intercooler on traffics and activate it on highways.

[Dieseldude]

So is there a way we can check if the EGR is stuck open?

Of course. But checking procedure varies, depending on the EGR's control system.

Blocking the valve itself is another option. If engine performance improves, the EGR system is faulty.

[avi42174]

Of course. But checking procedure varies, depending on the EGR's control system.

Blocking the valve itself is another option. If engine performance improves, the EGR system is faulty.

sir dieseldude,ask ko lng kung anong effect ng retard(advance) timing ng injections sa exhaust emission?

[Dieseldude]

sir dieseldude,ask ko lng kung anong effect ng retard(advance) timing ng injections sa exhaust emission?

Poor emissions...... black or even white smoke...... depende kung ilan degrees naka advance or retard ang timing. Pwedeng hindi ito mapansin sa mata kung off ang timing by 1 or 2 degrees lang, pero makikita na ito ng smoke opacity tester, lalung lalo na ng exhaust gas analyzer.

[cjpama]

Hi, I was wondering if someone could help me out because I'm still not over the shock of the quote from Toyota for a Supply Pump.

I have a 2nd hand Innova G Diesel A/T and the car has been stalling in the morning when the weather is cool. Also, white smoke seems to be coming from the exhaust when I rev the engine to warm it so it won't stall. Anyway, I brought the car to Toyota yesterday and they told me it may be the supply pump and they would have it checked.

Got the call today that I would have to spend 80,000 pesos for a new supply pump or I could get a reconditioned one for 40,000 pesos. Is that correct? I didn't even hear any mention of a warranty anywhere there. Is that because my car is 2nd hand?

Sorry guys... ask me about computers... not cars. Really need to know if my leg is being pulled here. Is it really that expensive?

Thanks for any advice.

[Dieseldude]

Hi, I was wondering if someone could help me out because I'm still not over the shock of the quote from Toyota for a Supply Pump.

I have a 2nd hand Innova G Diesel A/T and the car has been stalling in the morning when the weather is cool. Also, white smoke seems to be coming from the exhaust when I rev the engine to warm it so it won't stall. Anyway, I brought the car to Toyota yesterday and they told me it may be the supply pump and they would have it checked. Stalling is symptomatic of supply pump failure which is quite common to Innovas..

Got the call today that I would have to spend 80,000 pesos for a new supply pump or I could get a reconditioned one for 40,000 pesos. Is that correct? These prices are very expensive.

I didn't even hear any mention of a warranty anywhere there. Is that because my car is 2nd hand? I am not aware of Toyota's warranty coverage, and if it is transferrable. You can ask around at Tsikot's Toyota forum.

Sorry guys... ask me about computers... not cars. Really need to know if my leg is being pulled here. Toyota is probably correct in their diagnostics.

Is it really that expensive? It shouldn't be as we recondition these pumps for a lot less.

Thanks for any advice.

[avi42174]

Poor emissions...... black or even white smoke...... depende kung ilan degrees naka advance or retard ang timing. Pwedeng hindi ito mapansin sa mata kung off ang timing by 1 or 2 degrees lang, pero makikita na ito ng smoke opacity tester, lalung lalo na ng exhaust gas analyzer.

thanks for d info diesel dude.. more power and merry Christmas...

[cjpama]

Hi, I was wondering if someone could help me out because I'm still not over the shock of the quote from Toyota for a Supply Pump.

I have a 2nd hand Innova G Diesel A/T and the car has been stalling in the morning when the weather is cool. Also, white smoke seems to be coming from the exhaust when I rev the engine to warm it so it won't stall. Anyway, I brought the car to Toyota yesterday and they told me it may be the supply pump and they would have it checked. Stalling is symptomatic of supply pump failure which is quite common to Innovas..

Got the call today that I would have to spend 80,000 pesos for a new supply pump or I could get a reconditioned one for 40,000 pesos. Is that correct? These prices are very expensive.

I didn't even hear any mention of a warranty anywhere there. Is that because my car is 2nd hand? I am not aware of Toyota's warranty coverage, and if it is transferrable. You can ask around at Tsikot's Toyota forum.

Sorry guys... ask me about computers... not cars. Really need to know if my leg is being pulled here. Toyota is probably correct in their diagnostics.

Is it really that expensive? It shouldn't be as we recondition these pumps for a lot less.

Thanks for any advice.

Hi Dieseldude! Is there a reputable garage or person you may want to refer me to to have the supply pump reconditioned or maybe even a reputable reconditioned pump supplier? Any money I can save this season would be much appreciated.

[jologskyblues]

Help!

Biglang ayaw mag-start ng 2003 ford ranger trekker 4x2 namin. Wala naman problema the day before. Although medyo malamig ang panahon lately. around 24C sa gabi.

Nagcra-crank yung engine pero ayaw magstart.

Pano ba i-troubleshoot ito. Thanks.

[angbatangobong]

* sir dieseldude

Pwede po bang lagyan ng turbo yung 4d56 n/a na engine?
TIA!

[jpn]

Hi DieselDude,

I seem to have a problem with my 98 BMW725 TDS...the problem is at idle...there is so much fuel knock, my question...is there a quickfix to this...like diesel fuel additives/conditions that can minimize or eliminate it. About the fuel knock, its only present at idle around 800-900rpm. If I just tap the accelerator very lightly to keep it at 1000rpm the knock is totally gone....if I pump the accelertor several times very very quickly and let it idle it will idle without the knocking sound for about 2 seconds and the the knock returns...I also would wnat you to know the car has no problem at all, power is good, not much smoke emited when driven hard.
Another concern of mine, the car does not start quickly even when already hot, it will take 2 to 3 revolutions before the engine fires up...Whats your suggestion?
I believe you have a shop...are you capable of rebuilding the pump and are the parts available if ever I have it done? Could the injectors be a possibility or is it the pump, or thats just normal for older cars?

[Dieseldude]

Help!

Biglang ayaw mag-start ng 2003 ford ranger trekker 4x2 namin. Wala naman problema the day before. Although medyo malamig ang panahon lately. around 24C sa gabi.

Nagcra-crank yung engine pero ayaw magstart.

Pano ba i-troubleshoot ito. Thanks.

If your engine cranks normally, try checking for presence of voltage on your glow plugs.

If voltage is present, individually check your plugs for open circuit.

[Dieseldude]

* sir dieseldude

Pwede po bang lagyan ng turbo yung 4d56 n/a na engine?
TIA!

Shempre naman pwede. Pero malaki ang gastos dahil babaguhin mo pa ang intake & exhaust manifolds, and exhaust discharge pipe.

Papalitan mo din ang injection pump nung type na meron boost compensator para magkaroon ng additional power without smoke. Adding a turbo alone will not sufficiently increase power. To truly gain power, the inj. pump will also have to be recalibrated for more fuelling as the turbo will be supplying more air to your engine.