Diesel Fuel Injection System Help Desk

[timo07]

Hi DD, my innova will finally reach 40K km reading in odo after more than 5 years. Other than fluid changes recommended by casa, will you recommend egr cleaning? There is a very slight change in fuel consumption from the usual 10.5kpl to current 10kpl, city driving. Other than this, no performance issues whatsoever. TIA.

[Dieseldude]

hindi kaya sir... barado or naka bend ang fuel hose return?

I don't think so.

Try EGR.

[Dieseldude]

would blanking plates sa EGR ng D4D engine cause any issues?
I don't think so.

would it help in fuel consumption sir and pass the emmission tests?
Effect on fuel consumption will be very minimal. It will pass emission opacity test if smoke is reduced.
However it will fail exhaust gas analysis if NOX is measured.


thanks sir Dieseldude
You're welcome.

[Dieseldude]

Hi DD, my innova will finally reach 40K km reading in odo after more than 5 years. Other than fluid changes recommended by casa, will you recommend egr cleaning? There is a very slight change in fuel consumption from the usual 10.5kpl to current 10kpl, city driving. Other than this, no performance issues whatsoever. TIA.

EGR often cleans itself through occasional hard driving.......sa NLEX/SLEX.

[timo07]

EGR often cleans itself through occasional hard driving.......sa NLEX/SLEX.

Thanks DD. Think this was already suggested before in several postings. Sorry for my short memory.

[mackie08gt]

Hi..Question lang po..ano magandang brand ng Synthetic Oil for Diesel Engine? regular naman yung change oil namin..pero i want to try other brands..baka mas gumanda yung performance..or kung may combination okay din..lagi na lang kasi sa Toyota..hehe TIA!

[timykoo]

Hi..Question lang po..ano magandang brand ng Synthetic Oil for Diesel Engine? regular naman yung change oil namin..pero i want to try other brands..baka mas gumanda yung performance..or kung may combination okay din..lagi na lang kasi sa Toyota..hehe TIA!

May thread na tungkol dyan. http://tsikot.com/forums/engine-fuel.../index138.html

[weslu]

I own a 2003 Isuzu Crosswind AT. Had it's nozzle cleaned about a month ago, together with the fuel filter and sedimentor. After this, I noticed na medyo "sakal" yung power. Found out from the calibration center that I went to, that when the nozzle's were cleaned, the "pressure" was set to 180 instead of the 185 recommended by isuzu. According to the mechanic, hindi daw ito yung possible cause nung "sakal" na power. Mas ok nga daw yung lower setting kasi it means masmadali daw pumasok ang fuel dahil sa lower pressure. Is this true?

the mechanic thinks its the injector - baka kailangang linisin na daw. (air filter is about 3 months new pa lang. wala namang restricted sa air supply). When the mechanic steps on the pedal, napansin nya na hindi agad nagre-respond yung engine. Floored na yung pedal pero di pa "sumisigaw" yung engine...parang humahabol pa lang yung combustion (kaya parang sakal nga yung power).

Could the culprit be the wrong nozzle setting or the injector?

Appreciate any inputs. Also, can you PM me if you know of good calibration centers near Marikina, Sumulong HW - Cainta, Katipunan-C5-Aurora or nearby areas?

TIA

[dh0n]

My 2007 Ford Ranger Trekker 2.5 AT has terrible fuel consumption. I already changed all the fluids, filters(air, fuel), even had it diagnosed by Berrima who performed fuel line purge on it, to no avail. When I got the unit, there was a mild knocking sound and CEL which turned out to be the EGR whic I also replaced. We tried cleaning it first but the problem persisted. All of these and I'm still getting 5.5-6 KM/L city. What's annoying is that even on long trips such as Subic/Baguio, the best that I can do is 7.5 KM/L. It is also spewing black smoke during sudden acceleration and when the RPM goes over 3K RPM. I also have an OBD2 scan tool and from the reading, it seems that my injectors are working fine (via pressure reading). It also experience surging in terms of throttle response which I thought was due to a faulty Accelerator Pedal Position Sensor which I also replaced and tested, but still the symptoms persisted.

The only thing that I haven't done is to have the intake manifold cleaned. Do you think this will solve the high fuel consumption/black smoke problem during high RPM's? Do you have any other recommendations?

had the same issue with my 4jx1 trooper 6km/l city driving and 8km/l highway,black smoke on high prms and a bit white smoke in idle... decided to clean the intake manifold sobrang daming carbon deposit lalo na dun sa may bandang egr....and also done the tambutso cleaning,,, for almost a month now my city driving is 8km/l and 10km/l highway and no more black and white smoke...im planing to blocked the egr para hindi na gaanong dumumi ang intake manifold...im no expert just personal experience...

[Dieseldude]

I own a 2003 Isuzu Crosswind AT. Had it's nozzle cleaned about a month ago, together with the fuel filter and sedimentor. After this, I noticed na medyo "sakal" yung power. Found out from the calibration center that I went to, that when the nozzle's were cleaned, the "pressure" was set to 180 instead of the 185 recommended by isuzu. 5 bar deviation from specs won't cause a low power problem.

According to the mechanic, hindi daw ito yung possible cause nung "sakal" na power. Mas ok nga daw yung lower setting kasi it means masmadali daw pumasok ang fuel dahil sa lower pressure. Is this true? Your mechanic is partly correct. It would still be best if pressure is set to specs.

the mechanic thinks its the injector - baka kailangang linisin na daw. Injectors don't need checking if they were properly serviced just a month ago.

(air filter is about 3 months new pa lang. wala namang restricted sa air supply). When the mechanic steps on the pedal, napansin nya na hindi agad nagre-respond yung engine. Floored na yung pedal pero di pa "sumisigaw" yung engine...parang humahabol pa lang yung combustion (kaya parang sakal nga yung power).

Could the culprit be the wrong nozzle setting or the injector?

Appreciate any inputs. Also, can you PM me if you know of good calibration centers near Marikina, Sumulong HW - Cainta, Katipunan-C5-Aurora or nearby areas?

TIA

[ollopasagla]

Sir Dieseldude,

Ok lang ba na naka open permanently ang throttle blade/butterfly? Ano kaya posibleng maging epekto kung sakali.

Ollopasagla

[Dieseldude]

Sir Dieseldude,

Ok lang ba na naka open permanently ang throttle blade/butterfly? Ano kaya posibleng maging epekto kung sakali.

Ollopasagla

Identify your engine.....

[ollopasagla]

[QUOTE=Dieseldude;2139855]Identify your engine.....

[/QUOTE

Pajero with 4m40 engine...

[Dieseldude]

[QUOTE=ollopasagla;2139883]

Identify your engine.....

[/QUOTE

Pajero with 4m40 engine...

If you are talking about the flap on the intake manifold, engine will shake when you turn off ignition switch.

[jrn29]

would blanking plates sa EGR ng D4D engine cause any issues?
I don't think so.

would it help in fuel consumption sir and pass the emmission tests?
Effect on fuel consumption will be very minimal. It will pass emission opacity test if smoke is reduced.
However it will fail exhaust gas analysis if NOX is measured.


thanks sir Dieseldude
You're welcome.

about sir sa top speed , mag babago ba kung meron blanking plates ang 2.5 d4d ?

and totoo po ba na +10hp ang blanking plates .

[TheGreenThing]

+10hp ang alcohol injection pero sa blanking plates hindi... Most beneficial ng plate is the throttle response.. But not that really noticeable.. Its a long term effect beneficial, less carbon soot in your intake, assuming you have a clean intake/exhaust track..

[Dieseldude]

about sir sa top speed , mag babago ba kung meron blanking plates ang 2.5 d4d ?
Hindi magbabago kung ok ang egr..

and totoo po ba na +10hp ang blanking plates
Hindi totoo kung ok ang egr.

[jrn29]

about sir sa top speed , mag babago ba kung meron blanking plates ang 2.5 d4d ?
Hindi magbabago kung ok ang egr..

and totoo po ba na +10hp ang blanking plates
Hindi totoo kung ok ang egr.

eh sir dieseldude,. ano po tulong sa sasakyan ng blanking plates , or useless lang ?

,ano ang mas mainam kung may blanking plates or wala ? t.y

[RevoSR]

Sir DieselDude,

mine is innova 2013 D4D diesel engine. I would like to ask how many minutes for the turbo charged to cool down before shutting off the engine, city driving only..... BTW sir DD I used unioils euro4 diesel they said this is the cleanest diesel so far... is it true.... thanks.....

[Dieseldude]

eh sir dieseldude,. ano po tulong sa sasakyan ng blanking plates , or useless lang ?
Walang tulong ang plates kung ok ang egr...

,ano ang mas mainam kung may blanking plates or wala ? t.y :happy