Diesel Fuel Injection System Help Desk

[egsunio]

Hi Dieseldude. Need your help. I was one of those who unfortunately got my Pajero submerged (near the roof for ~ 6 hrs) last September. Got it running after ~2 weeks but has had some problems once in a while. Last wednesday, after a few minutes of drive, the AT light started blinking so after driving for awhile to drop off my brother, i went back home. But i noticed that it was not shifting correctly already and it had a hard time getting up our driveway which has a small incline. I checked the ATF and it was full. I started it again, the blinking stopped and the power is back. Yesterday, we changed the ATF but didn't help much. The problem is intermittent. What should i check/do? Thanks.

[Dieseldude]

Hi Dieseldude. Need your help. I was one of those who unfortunately got my Pajero submerged (near the roof for ~ 6 hrs) last September. Got it running after ~2 weeks but has had some problems once in a while. Last wednesday, after a few minutes of drive, the AT light started blinking so after driving for awhile to drop off my brother, i went back home. But i noticed that it was not shifting correctly already and it had a hard time getting up our driveway which has a small incline. I checked the ATF and it was full. I started it again, the blinking stopped and the power is back. Yesterday, we changed the ATF but didn't help much. The problem is intermittent. What should i check/do? Thanks.

I would check the throttle potentiometer for loose/broken wires. This is a black round thing with three wires, mounted on top of the injection pump's control lever. Don't loosen the 2 mounting screws or adjust it's position; this is critical. This device detects throttle position and sends a signal to the transmission control unit for proper shifting.

Update us if your fix is successful.

[batosai]

[SIZE=3]4JG2 uses a rotary pump, either mechanical or electronic, depending on the model. Matutumbok natin ang pump pag napost mo ang part number.[/SIZE]

Sir hindi ko po makita ung part number, pero mine is mechenical type hindi po EFI.

Hi Dieseldude. Need your help. I was one of those who unfortunately got my Pajero submerged (near the roof for ~ 6 hrs) last September. Got it running after ~2 weeks but has had some problems once in a while. Last wednesday, after a few minutes of drive, the AT light started blinking so after driving for awhile to drop off my brother, i went back home. But i noticed that it was not shifting correctly already and it had a hard time getting up our driveway which has a small incline. I checked the ATF and it was full. I started it again, the blinking stopped and the power is back. Yesterday, we changed the ATF but didn't help much. The problem is intermittent. What should i check/do? Thanks.

I would check the throttle potentiometer for loose/broken wires. This is a black round thing with three wires, mounted on top of the injection pump's control lever. Don't loosen the 2 mounting screws or adjust it's position; this is critical. This device detects throttle position and sends a signal to the transmission control unit for proper shifting.

Update us if your fix is successful.

Sir may Idea po ba kayo kung panu malalaman kung tama ang position ng potentiometer sa isang sasakyan?


Thanks..

[Dieseldude]

Sir hindi ko po makita ung part number, pero mine is mechenical type hindi po EFI.

Sir may Idea po ba kayo kung panu malalaman kung tama ang position ng potentiometer sa isang sasakyan?

Thanks..

Hindi ko ma-explain ito sa iyo. Meron specific electronic calibration data para sa throttle potentiometer. Nasa test specifications ito ng injection pump. Ginagawa ang adjustment habang naka salang ang injection pump sa test bench.

[lagim_29]

sir,meron kasi ako problema ngayon, its about the diesel injection pump ng toyota lucida ng office...ganito kasi ngayari...after ondoy eh ginawa palang bangka ung oto,inilusong sa baha after nun nag hard starting siya, so pinatingin sa mekaniko,ayun di check yung makina,wala daw kuryente yung injection pump so tumawag ng electrician,check yung computer box baka kasi yun ang sira,eventually nagkakuryente,di inistart ayun gumana yung makina,after ilang test, biglang naputol yung timing belt..nakow...binuksan yung overhead, putol ang camshaft, baluktot 3 valve and may tama yung 3 valve lifter,so pinaayos yun at bumila ng mg pyesa.so ok na,eto ngayon bago pa pala nabaha eh nakargahan ng gear oil yung makina instead na engine oil...bumili na rin ako ng surplus na injection pump ang kaso hindi daw consistent yung buga ng krudo...ipa calibrate daw...ang kaso wala nagcacalibrate dito sa cavite na alam ko puro mechanical lang, sabi naman dun sa isang calibration shop ipa check ko daw yung computer box kasi baka yun daw ang sira, tanong ko lang paano ba ang gagawin ko? cant read back kasi medyo mahaba na itong thread and medyo nagmamadali na ung boss ko...is it the injection pump ba or the computer box?ano pwede remedy or solution sa prob na ito...tia

[Dieseldude]

sir,meron kasi ako problema ngayon, its about the diesel injection pump ng toyota lucida ng office...ganito kasi ngayari...after ondoy eh ginawa palang bangka ung oto,inilusong sa baha after nun nag hard starting siya, Masisira talaga yan dahil ginawang bangka ang kotse.

so pinatingin sa mekaniko,ayun di check yung makina,wala daw kuryente yung injection pump so tumawag ng electrician,check yung computer box baka kasi yun ang sira,eventually nagkakuryente,di inistart ayun gumana yung makina,after ilang test, biglang naputol yung timing belt..nakow...binuksan yung overhead, putol ang camshaft, baluktot 3 valve and may tama yung 3 valve lifter,so pinaayos yun at bumila ng mg pyesa. Poor maintenance. Dapat pinapalitan ang timing belt on schedule.

so ok na,eto ngayon bago pa pala nabaha eh nakargahan ng gear oil yung makina instead na engine oil...Hay naku. bakit ganyan ang mga tao nyo?

bumili na rin ako ng surplus na injection pump Bakit ka bumili ng IP? Pwede naman ma repair yan.

ang kaso hindi daw consistent yung buga ng krudo...ipa calibrate daw... Paano kaya nalaman ng mekaniko ma na hindi consistent ang buga? May test equipment ba sha? Ibalik mo sa tindahan ang injection pump at papalitan mo kung sira talaga. Wala ba silang warranty?

ang kaso wala nagcacalibrate dito sa cavite na alam ko puro mechanical lang, Dalhin mo ang IP sa Manila. Pwede ma repair yan.

sabi naman dun sa isang calibration shop ipa check ko daw yung computer box kasi baka yun daw ang sira, Paano naman nahulaan ng calibration shop na sira ang computer box?

tanong ko lang paano ba ang gagawin ko? Palitan or turuan ang mga driver at maintenance personnel nyo. Sisirain nila lahat ng sasakyan ng kumpanya.

cant read back kasi medyo mahaba na itong thread and medyo nagmamadali na ung boss ko...is it the injection pump ba or the computer box? I don't know. HIndi natin ito kaya idiagnose basse sa post mo lang.

ano pwede remedy or solution sa prob na ito...tia. Dalhin mo ang Lucida sa matinong workshop, hindi sa manghuhula. Kawawa ka naman.

[lagim_29]

sir,saan kayang shop pwede dalhin yung IP?can you give me the name of the shops?tnx