got a 2002 tj magna exec, yesterday I removed the fuel injectors and had them professionally cleaned, installed them today and now it looks like #3 injector is being held open, I know this because #3 spark plug is soaked with fuel, no fuel is leaking outside the injectors, all new kits on them, havent pinched any wires, gone over my work and everything is fine and connected where its meant to be. ive even checked for spark, which there is. what im going to do next is change out the injector wiring harness, fuel reg, compression test (just for fun :) ) and change that injector again, and failing that, ecu. im hoping before I get to the ecu someone might have an idea or a simular problem that was an easy fix.

Any help is very much appreciated guys.

Why dont you try popping that injector in another spot and see if it does it on another cylinder?? Could tell you if its the injector or your car ecu/wiring

Why dont you try popping that injector in another spot and see if it does it on another cylinder?? Could tell you if its the injector or your car ecu/wiring

actually its funny you said that, I just came in from doing that exact process, and its still #3 cylinder flooding.
so I should start looking at ecu/wiring? it definitely wouldn't be the fuel reg?
update on this, I just pulled all the spark plugs out, wound over the engine, and fuel gushed out of #3 cylinder, I disconnected the #3 injector, wound the engine over again and fuel continued to gush out.

also thanks for the quick reply

Have seen this before, if is number 3 is a rear bank injector, you have pinched the loom when you put the manifold back on and the injector wire is grounding. Remember injectors are negative switched

ty for the reply guys, I think ive got it licked, even though I got all 6 of my injectors back from getting cleaned, and the mechanic said they were good, 1 injector (#3) was stuck open, I even disconnected it from power, and it still poured fuel in to #3 pot. I too thought I pinched the wiring loom mal, but I didn't. it was just a faulty injector (supposed to be checked and claimed good)

Why dont you try popping that injector in another spot and see if it does it on another cylinder?? Could tell you if its the injector or your car ecu/wiring


actually its funny you said that, I just came in from doing that exact process, and its still #3 cylinder flooding.


So you moved the #3 injector, but the problem stayed with #3 cylinder?

Tends to suggest it is NOT the injector.

Perhaps the injector is good, but the pressurised fuel is getting past it somehow?
Checked the fuel rail "O" rings at the #3 cylinder?

So you moved the #3 injector, but the problem stayed with #3 cylinder?

Tends to suggest it is NOT the injector.

Perhaps the injector is good, but the pressurised fuel is getting past it somehow?
Checked the fuel rail "O" rings at the #3 cylinder?


yeah, sorry madmax, I meant it was still the same injector, I moved it to the next pot, and the same injector was still gushing fuel out, just in the next pot beside it (I hope that all makes sence) its been a long 3 days lol

anyway, I ended up at the wreckers and just replaced that 1 injector and all is good now, well, for the first half hour of driving it wasent, couldn't see me for smoke lol. and yes, I did an oil change before I started the car. and compression test results were between 215-220psi/pot

Now I'm with you. lol
An open injector would simply allow all of the expensive fuel at 60 psi or so to fill a cylinder, I'm surprised you didn't get hydrolock!

Have a word with the bloke who cleaned and tested them and passed them all as good.

Wow 60 psi in your fuel rail max, I would be getting that checked pretty quickly

Op, hope the shop cleaned the replacement unit for you, not sure how they missed that on the flow bench

Thanks everyone for the help, its been 24 hours and the car is going strong. when you get something back from a mechanic you kinda expect it to be fixed when they say "you got 6 good injectors" hence the reason I didn't suspect a faulty injector in the beginning.

when you get something back from a mechanic you kinda expect it to be fixed when they say "you got 6 good injectors" hence the reason I didn't suspect a faulty injector in the beginning.

Take the faulty one back to him, get him to test it - then watch the dopey look on his face. Good for a laugh, anyway. (Or to confirm it is beyond hope)

PS . . . . 3 BAR, or about 42 psi - is that better, Mal? lol