cylinder 3 is filling with fuel!

[CurleyMerkin14]

SSo the crack case has oil/gas the exhaust is pooring out gas gas the car sounds like a subie. Cylinder 3 is full of full I switched the injectors and nothing changed. Changed the plugs nothing changed this is a rb25det thanks for the help! !


ok now the car's plugs are all crazy cylinders12456 are all lean condition on the plugs and cylinder 3 looks brand new plugs is shiny and looks like it has never even lit up , i think it is taking all the fuel into cyl. 3 and depriving the other 5 cylinders what can cause this and how can i fix it??

[89JDM240sx]

That injector is prob stuck open... Is there a tune on the car?

[CurleyMerkin14]

No tune on it. And I switched that injector to another port but cylinder 3 is still filling even though that injector is now in cylinder 1

[89JDM240sx]

Try n reset the Ecu... See what happens.... Comp sending to much fuel

[CurleyMerkin14]

Try n reset the Ecu... See what happens.... Comp sending to much fuel

Ill try that would it just be sending it to that much fuel to 1 injector though?

[89JDM240sx]

Yes it's possible... Happened to my KA

[pstarkt87]

is the coilpack good? and the ignitor module? i just had this same problem on my rb20, the coil pack should have a resistance between .6-.9

[pstarkt87]

also check the fpr's

[CurleyMerkin14]

Fpr is good. Also I switched the coil pack to another cylinder and its still just cylinder 3 that's dumping fuel

[cotbu]

Have you removed the fuel rail, and examined what happens when koeo? If your o rings aren't leaking and the cylinder has spark, it may have no or low compression. I would do a compression test, just to rule that out. In this case, I would hope it's just an electrical/wiring problem.

[taffyk20si]

I'm having the same problem with my rb20. Cylinder 5 comes and goes as it pleases. My coil pack harness was all jacked up. A new cp harness is on the way. If that doesn't solve it my next step is to check the continuity between the ecu, wiring, and the ignitor chip.

[sterlinge]

Pull off your fuel rail with everything still hooked up to it. Fuel lines and injector plugs. Prime your system if the injector leaks without turning over the engine or leaks when you do turn the engine over. I would suspect the harness wire that goes to the ecu off that injectors is grounded on something or your ecu is bad. Thats if you switched injector and it stayed on the original problem cylinder

[CurleyMerkin14]

Pull off your fuel rail with everything still hooked up to it. Fuel lines and injector plugs. Prime your system if the injector leaks without turning over the engine or leaks when you do turn the engine over. I would suspect the harness wire that goes to the ecu off that injectors is grounded on something or your ecu is bad. Thats if you switched injector and it stayed on the original problem cylinder

yes it stayed on that problem cylinder no matter what i changed

[CurleyMerkin14]

ok so next thing ive seen ... turned itover and it sounds like it wants to run so badly but only maybe running on 5 cyls. next thing im guessing is coil pack? on the 3rd cylinder is not working properly? would that cause any of these symptoms

[CurleyMerkin14]

really need help with this trying to drift tomorrow and its not looking so good :(

[CurleyMerkin14]

no one out there as any ideas at all :( poooooh