4JX1 Stranded? Try this fix

[@domesticapepeters616]

Thank you mate, your vid made it simple to find, follow and it worked, my orps was stuffed.

[@DiYSpanner]

I'm glad it helped.

[@kitquicky]

Thank you for sharing this tip!!!

[@DiYSpanner]

Your welcome! Thank you too for watching.

[@raharodriguezOBJ]

I also have a trooper with a 4jx1 engine. i think i might have the same problem with my oil pressure. The scanner only said i have an issue with one of the fuel injectors which i have then replaced with a surplus unit. But despite doing that my RPM is still going down whenever I start the engine or i'm idle tho the rpm goes back to normal and the chugging noise eventually disappears when i start running the car and revving the engine. I've been to different mechanics but they can't find a definite problem.

[@DiYSpanner]

Yes sir, 4jx1 is not easy.

[@MNCPMSteve]

Not many people understand the heui, my mate is spare parts manager at the local dealership, the mechanics run and hide in the dunnies when they see a jack rolling in on a tilt tray. 😅 I hope I can learn all about these wonderful engines. Temperamental bastards though. 🙄 1.5 years of no issues at all, trying to not get demoralised

[@kitquicky]

You might know the solution to my issue, when my ac turns on, the idle sometimes drops a bit, need to tap the accelerator a bit to increase the idle, there are times in compensate on it own!! Thanks

[@MNCPMSteve]

I found mine didn't change at all when I turn the AC on like other vehicles, especially the Toyota Celica ST185CS, Japanese Nippon Denso system, drained power from engine when activated. Doesn't seem to drain hp at all with my 4jx1. 🤔👍🏻

[@MNCPMSteve]

I'm going to cut my white wire tomorrow, I'm sick and tired of not having it start. 😔 Hopefully it's the problem 🙏🏻🙏🏻

[@MNCPMSteve]

Wasn't the issue, bloody thing stuck out the front of my house, no idea. Mongrel thing, very strange. I've day runs perfectly, next day nothing.. Then nothing... and again nothing 😮‍💨

[@christiantangarorang6088]

Sir ano po possible cause bakit nasisira agad ang oil rail pressure sensor?

[@acoleman8783]

hi, thanks, good tip, my 4jx1 was starting just fine but needed to remove the intake manifold because build up of sludge. I put it back together but its not starting. initially it almost start and run for maybe 1 second, but now, just turns over. Maybe air in fuel line? I bleed just the lines but still no start?? Any ideas. Thanks

[@DiYSpanner]

Make sure the battery is fully charged because this 4jx1 need a fast cranking.

[@acoleman8783]

@@DiYSpanner Hello, thanks again, let me just say that, thanks. So i mentioned that i cleaned up the intake manifold and engine starting ok now. I had mentioned that the Bighorn is smoking, especially when cold in the morning, as it warms up, 10 minutes later or so, it is less but more than when you fix the Troopers online. I had an error code P0118 as engine light has always been on, that relates to coolant temp sensor. I bought a replacement sensor but before inserting i decide to test my old sensor again, this time old sensor reads ok, about 4,000 ohms at 22 deg C. Engine light is ON at ignition BUT off for a few seconds after start engine then on again. Temp Sensor seems ok now, maybe bad contact, unable to do a new test with engine test device now. But smoking same as before still. any ideas what next to look at? UPDATE: I have reconnected the EGR, i had previously disconnected the hose leading to it. The engine struggles to rev up and smokes heavily as was situation before manifold cleaning. Disconnect the EGR and the engine runs smoothly with significantly less smoke. UPDATE: IF I remove the turbo hose just before intake manifold, engine doest rev beyond 2000 rpm, light grey smoke. All other times, dark grey smoke.

[@JonoelBelars]

Hello po pwedi pa helf po,ung akin na troper walang xurrent sa injictor na apat po ayaw umandar

[@russe19642]

I have oil in my coolant,only in coolant and no fuel or coolant in oil like when the seals on the injectors leak. So far I have advice that either oil cooler leaking,turbo leaking or head gasket.im kind of ruling out head gasket as no coolant in oil and no visible oil or water leaking around head. What do you think

[@DiYSpanner]

A possible oil cooler leaking.

[@sammymag-asin4015]

Hi sir, have you experience about trooper 4Jx1 no ground supply coming from Ecm?the Ecm relay 2 no ground coming from J1 10 also the check engine light and when I hook up a scanner no communication sir?they are cranking but no engine start..all the negative in sensors wire coming from Ecm no ground

[@DiYSpanner]

I have not meet that kind of trouble so far for 4jx1. Thank you for watching sir!

[@lewishicks6734]

hey man ecm in this car very easy to short outand damage, have learnt the hard way!!

[@sabelsumpay4707]

Sir tanong ko lang po yong sakin 4jx1 trooper din ano kaya possible issue dahil pag off ko ng engine nong e start ko sana uli ayaw na mag start sabi starter daw nong inayos na starter ayaw padin,sinubukang paikutin matigas sya sir ayaw umikot ano kaya possible cause sir.?

[@DiYSpanner]

Pasensya na sir, di ko masagot yung tanong.

[@chinps4797]

4JX1T is it using running by T-belt or T-gear sir?

[@DiYSpanner]

T-belt.

[@ernestomatinong7309]

Boos sa akin pag cold start ang engine. 1 click start agad Pag mainit na ang engine at start ulit nag flashing ang check trans malakas ang crank ayaw mag start ano kaya problema ? 4jx1 engine

[@WORLADanyVIDEO]

Hello sir.. Can u help me to fix my car I have isuzu trooper 4jx1 engine and now my car engine after start in ideal RPM have to much knocking sound and vibration and in higher RPM no more knocking sound. when I check fault code with scanner. The code coming is P0193 rail pressure sensor but engine is start.

[@DiYSpanner]

Hello sir, please have it check by a mechanic with 4jx1 engine experienced. Thank you for watching!

[@irineodeleon6758]

DIY Spanner what should i do if i get that trouble on orps cranking but not starting what i seen in the video was you cut off the white wire and connected an extension wire you didnt show where did you connected that end of the extension wire you made, i hope you answere and explain briefly my question . I had experienced that already and i was reaced . Thanks a lot , GOD BLESS YOU !

[@DiYSpanner]

Connect it to the other end of the white wire. I cut the white wire and add another wire as extension to the opposite ends of the cut wire. I just extend the white wire outside the harness to easily disconnect it whenever the ORPS fail. Thank you for watching sir!

[@irineodeleon6758]

DIY Spanner sorry ! sir i can not understand the logic you cutted off the white wire then you connected up with the same white ( as like you jumpered out ) in nothing you connect in series with the both end of white wire . Sorry ! i may believe that you can start the engine of 4jx1 with a bad oprs if you jumper out the input signal that coming out of the oprs. Please ! explain to me very well how you did to start 4jx1 engine with bad oprs , i much interested with that because as i said before i had alread experienced to get stranded because of that bad OPRS . THANKS & REGARDS !

[@MyMonnie]

Irineo De leon I did the same thing, the check engine lights up when you disconnect the “jumper cable” but it runs and no surging rpm. Runs as normal except for the check engine... my trooper some how when I did that and connect back the cables, it runs fine too. What could be the issue on my car? Still I’m gonna replace the orps when I have a chance. Do you know how much it will cost me?... thank you!

[@MarvinIlao-w5e]

Sir help aakit na ulo ko tajmibg nmn lahat tama cam shaft presurepump main pulley pag inikot ko ng 1 cyvle nawawala ang timjng s prssure pump normal lng po ba yun? KUNG HIND ANU PO cause nya?

[@DiYSpanner]

Pasensya na sir, kami ay nahihirapan din sa 4jx1.

[@sheeesh8694]

sir taking lang po Sana yung kasing trooper ko nagpalit lang kami ng injector sleeve oring nung nkumpleto na namin ayaw na umandar sir kalahating araw na nmin sibukang istart ayaw talaga sir parang walang supply ng diesel sir eh

[@DiYSpanner]

Yong 4jx1 na nagawa namin, pinalitan din ng injector sleeve oring, mahirap nga siya paandarin pagkatapos. Kailangan malakas talaga ang baterya para mapaandar.

[@allenespera1804]

How abuot start engine after start no more deisel can supply plese help

[@DiYSpanner]

Sir have it check by a mechanic with 4jx1 engine knowledge. Tnx for watching!

[@kiwiingenuity1677]

@@DiYSpanner fuel filter blocked?

[@DiYSpanner]

@@kiwiingenuity1677 possible

[@richardosio412]

Sir pa help nmn po ..saan po kumukuha nang live ang injector nang trooper wala pobkse live sa wire nang injector ..tnx po

[@DiYSpanner]

Sorry sir wala akng sagot.

[@banzd688]

Hello sir! This is the issue im fixing now...i did what you said but it doesn't work😩

[@DiYSpanner]

Maybe the ORPS of your 4jx1 is good and have other problem sir.

[@ernestgabriel2953]

Sir mag-check engine ba yan pag naka-on ang susi?

[@DiYSpanner]

Oo sir,

[@ernestgabriel2953]

@@DiYSpanner ah ok po. Wala kasing check engine ung sa akin. Ayaw mag-start hindi lang nagamit ng 2 araw. Na-bleed ko na rin fuel pump at na-disconnect ko hose kung sumisipsip at nagbubuga, ok nmn.

[@DiYSpanner]

@@ernestgabriel2953 try mo sir, switch on mga 15 to 30 seconds o higit pa bago e start. Kailangan din malakas ang baterya.

[@marissasasutil5945]

Salamat sa video na ito.

[@justinjessdizo592]

Sir okay lang ba na ganyan ang gawin instead na palitan ang ORPS?

[@DiYSpanner]

Kailangan pa rin palitan sir, temporary fix lng sya at testing na rin sa ORPS.

[@justinjessdizo592]

Matanong ko din if ano dapat palitan pag ayaw mag start. Napastart ko naman gantong process sir kaso ayaw nanaman magstart

[@DiYSpanner]

Mahirap paandarin ang 4jx1 pag mahina ang baterya.

[@DiYSpanner]

Check mo na rin level ng engine oil at dapat malinis ang fuel filter.

[@GurwinderSingh-xk5fb]

Hi mate, my isuzu with same engine cuts off after 10 mins or every now and then. What could be the issue?

[@DiYSpanner]

Im sorry i cant help but a scanner will if the mil is on.

[@kabalaybaydondonvlog9070]

Saan po i connect boss ang white wire? Sa negative po or sa positive .12 volt?

[@DiYSpanner]

Putolin lng ang white wire boss, hindi na kailangan ng negative o positive.

[@kabalaybaydondonvlog9070]

Boss ayaw pa din😭 ano po kaya sira neto? Gamit ko lang kagabi umaga ayaw na po umandar, buo po naman lahat na heater plug?

[@DiYSpanner]

Iba problema ng 4jx1 mo boss. Try mo muna check ang fuel filter at dapat malakas din ang baterya during cranking.

[@samanthabagcal2573]

@@DiYSpanner bos anu kya dhiln ng trooper pag inistart mo mhina redondo

[@DiYSpanner]

@@samanthabagcal2573 posible mahina ang baterya o linisin ang terminal at poste ng baterya.

[@rpoco66]

Sana po matulungan nyo po ako,baka po pwd mahingi boss # nyo

[@ryanynumerable912]

Sir patulong nman po.. pag nag start na engine po ng troopee after ilang second pinapatay nya yung engine.. pano po kaya gagawin dito

[@DiYSpanner]

Scan sir kung nka check engine o fuel filter barado.

[@ryanynumerable912]

Di po sya barado sir wala ring check engine tapos ngayon ayaw na nya umandar puro nalang redondo yung starter nya..

[@ryanynumerable912]

Yung line na papunta sa enjector may diessel pero pag dating sa enjector wala ano kya problema nun sir

[@georgemojica6287]

Sir 4jx1 din akin bigla nalang namatay makina wala nman kahit anong warning sa dashboard habang tumatakbo. May cranking pero di mag start. Patulong nman po

[@georgemojica6287]

Yung engine oil temp. (EOT )sensor circuit high voltage atfuel rail pressure ( FRP )sensor circuit high voltage ano po dapat gawin?

[@DiYSpanner]

Pasensya na sir, kami din ay nahihirapan sa 4jx1.

[@rpoco66]

Boss 4jx1 po isuzu akin grabe stress na po ako baka matulungan nyo po ako,baka po pwd mahingi # nyo para ma explain ko po maayos...d ko na alam gagawin ko boss...

[@DiYSpanner]

Pasensya na boss, gusto ko man tumolong eh kami rin kc nahihirapan dyan sa 4jx1.

[@injinirdin]

sir san kaya galing yang itim na parang engine oil

[@DiYSpanner]

Oo sir engine oil yan, tagas dumaan sa wire harness.

[@allenespera1804]

Sir. Meron akong problema dito pag ng start ako mag start naman ang problema ko walang menor deritso patay siya sir ano gagawin ko tolongan mo ako sir

[@allenespera1804]

Tolongan mo akoa sir problema ko salamat po

[@DiYSpanner]

Check mo fuel filter sir.

[@kristopherkatembang8844]

Sir i need your help nag overhaul 4jx1 troper ayaw mag start help me sir tnx

[@kitquicky]

If you are from metro manila, my mechanic can help you. 09155507636

[@DiYSpanner]

Thanks

[@DiYSpanner]

Thanks

[@noahescoto9598]

Sir pinutol kunapo pero wala parin ayaw mag start

[@DiYSpanner]

iba diperensya ng 4jx1 mo sir. Paraan lng ito pra ma bypass ang Oil Rail Pressure Sensor na nasa loob.

[@juditharevalo7724]

sir ung gngwa nmin na gnyan nag ccrank pero ayaw dn umandar. may secret button nga b ito s loob?