11-29-2012, 01:54 AM #1
Misfire - 3rd cylinder pumping out heaps of fuel
Need some help,
I have a stock standard 06 GTX S/C 185.
Its developed a misfire of late that after a few minutes generally goes away and runs well. However i took it out and the misfire remained. Brought it home, found no. 3 cylinder spark plug very wet. Other two a nice grey colour.
A fresh set of plugs and i try again...same problem.
I turned the ski over will all plugs out and noticed a massive amounts of fuel being pumped out of no, 3 but none of the others. There is that much fuel that it is almost raining when ii turn the motor over.
I have stopped turning the motor over.
Any thoughts. A faulty injector that is just pulsing way harder than it should??? Has anyone heard of this before???
11-29-2012, 01:56 AM #2
When i say "turned the ski over" i mean turn the motor with the starter motor, just to clarify i didnt turn whole boat upside down.
11-29-2012, 02:24 AM #3
Im now getting a P0505 error code.....
11-29-2012, 02:48 AM #4
Ok, pulled the fuel rail and injectors out. As soon as I plug the key in, the no. 3 injector is pumping fuel. The others are not.....why????
11-29-2012, 02:49 AM #5
11-29-2012, 02:50 AM #6
Are you positive it is fuel being pumped out? I'd remove the injector rail and see what is happening with the injectors.
11-29-2012, 03:20 AM #7
Yep its fuel, pulled the rail and injectors out and you can see the no. 3 injector squirting heaps of fuel. Swapped the no.3, injector electrical plug onto the no. 2 injector and guess what...now the no. 2 fuel injector is running when i plug the key in. So for some reason the no. 3 fuel injector connection is giving a signal but i don't know why.
11-29-2012, 07:15 AM #8
Your injector is bad,buy a new one and you wont have a problem.
I had the same experience, installed new injector and the problem is solved.
When you put the dess key on ,the system automatically sets pressure on the fuelline,since you have a bad injector it will start spraying fuel in your cylinder.
11-29-2012, 07:38 AM #9
Thats what i thought initially but when i put the no 3 injector connection on the no 2 injector, the no 2 injector starts spraying fuel and the no 3 injector is fine...
11-29-2012, 07:39 AM #10
Hoping that the injector connection is grounding out somewhere and its not a bad ecu sending a faulty signal.
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