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SavageSun4x4
03-09-2006, 04:18 PM
I have an intermittent problem. I am throwing code: 206 Injector #6 control circuit problem (open or shorted), in this case its open. How do I know? The gas fumes and the Jeeps ability to suck down a tank of gas in a matter of a few miles.

On occasions, it will also throw 300, 304 and 306. But I can most often solve those issues by doing a reset, then its just 206.

This can last from a day or so to a week. Then it disappears only to come back the next time I wash my Jeep.

I stopped by Airpark Jeep today and they said they have no idea what would cause it, but feel it’s not a bad injector.

Need to do a circuit test and a resistance test is my guess.

I need to find someone that can help diagnose and track down what appears to be electrical short.

I will come to you, at your convenience, pay you for your time, buy lunch or dinner etc. Just need some assistance from somebody that is more electrically inclined than me.

Thanks
AZG23
03-09-2006, 04:44 PM
Did they do a diagnostic on it...? Or were you just asking an advisor....?? Im not good enough to help...just curious...
SavageSun4x4
03-09-2006, 05:10 PM
Did they do a diagnostic on it...? Or were you just asking an advisor....?? Im not good enough to help...just curious...
No, they went and got the the head mech I guess and he told me my Jeep had too many mods for them to work on. He did attempt to be helpful and we talked a bit but he just said he didn't know what the problem could be.:confused:
scy tj
03-09-2006, 05:13 PM
...it disappears only to come back the next time I wash my Jeep.

Sounds like the short is caused by water getting in where it doesn't belong. I've seen how clean you keep your rig and am assuming that part of "wash my jeep" includes hosing out the engine compartment... If so, I would start by applying a healthy dose of dielectric greese to the electrical conections on the injectors and computer to keep the water out. (that or quit washing your rig :rolleyes: )
Joe West
03-09-2006, 05:14 PM
Don,

I would have guessed injector failure before wiring failure. You haven't made any changes to the engine wiring harness, have you?

Joe
AZG23
03-09-2006, 05:17 PM
No, they went and got the the head mech I guess and he told me my Jeep had too many mods for them to work on. He did attempt to be helpful and we talked a bit but he just said he didn't know what the problem could be.:confused:


Who was the advisor...?? I just had my Jeep in there having work done...adn no one said my Jeep was too modified...mine isnt as close to yours...but still...Id call and ask for Eric...he took real good care of me...tell him I recommended you to him...he's a Jeeper too..actually here is his number 480 226 2709

see what he says...
SavageSun4x4
03-09-2006, 07:29 PM
Don,

I would have guessed injector failure before wiring failure. You haven't made any changes to the engine wiring harness, have you?

Joe
Thanks, Joe but no, I haven't. I discussed that with the mech and he was almost positive that it was not an injector. I also have that on a second opinion. They all think its a short in one of the wires.

This is something that has only come about recently and with >50k miles and heading towards 4 years [the injectors are less than 2 years old, replaced when I put on the supercharger] its never happened till recently. I run the Avenger SC which required no electric interface or even a reprogram on the computer. So I can't point the finger at that.:confused: :(
OlneyJeeps
03-09-2006, 09:04 PM
dirty/oxidized connection at the injector?
call me niaeve (and cheap ), but have you thought of switching #6 with another and see if same code comes up (or code points to where you put #6)?
TickDontPick
03-09-2006, 09:52 PM
Sounds like the short is caused by water getting in where it doesn't belong. I've seen how clean you keep your rig and am assuming that part of "wash my jeep" includes hosing out the engine compartment... If so, I would start by applying a healthy dose of dielectric greese to the electrical conections on the injectors and computer to keep the water out. (that or quit washing your rig :rolleyes: )


Sorry about the off topic reply, but arent you supposed to cover up a bunch of stuff when cleaning your engine? I've heard you are supposed to cover the alternator, wiring harnesses, spark plugs, sensors, etc... If thats all BS than I would clean my engine in a heartbeat...
wannabejeeper
03-10-2006, 08:12 AM
dirty/oxidized connection at the injector?
call me niaeve (and cheap ), but have you thought of switching #6 with another and see if same code comes up (or code points to where you put #6)?


What he said. That's one of the first things my techs do whenever they have injector problems.
SavageSun4x4
03-10-2006, 10:22 AM
dirty/oxidized connection at the injector?
call me niaeve (and cheap ), but have you thought of switching #6 with another and see if same code comes up (or code points to where you put #6)?
In speaking with a couple of folks that work with these systems all the time, neither thinks it’s the injector.

If it was the injector then it’s most likely sticking internally and the first fix is to clean them by adding a can or two of injector cleaner. This I have done, in fact, 8 cans of injector cleaner over the past couple of months.

Additionally, it’s an intermittent problem and will go away on its own in a few days. However, the fumes might kill me first if I don’t go broke buying gas.

I feel confident that it’s in the circuit somewhere not the injector. Moreover, removing and reinstalling injectors is not a simple job. Leastwise on my rig its not, since I have to pull the SC. That said it would be simpler and quicker to check the circuits than to pull injectors.

If I went to the trouble to pull an injector, I would just install a new one at that point in time.

Guidance from those who are wise: The steps to take if you appear to be having injector(s) issues.

1) Use a good quality injector cleaner to dissolve any gun or varnish that might have built up internally. If that doesn’t solve the problem then,
2) Perform a continuity and resistance test on the suspected injector(s). If continuity and resistance is ok and all injectors are within a point of each other then,
3) Replace suspected injector(s).
SavageSun4x4
03-10-2006, 10:24 AM
All that said: I still haven't had anyone come on line and offer to help.
Devil Man
03-10-2006, 10:59 AM
All that said: I still haven't had anyone come on line and offer to help.
I WISH I COULD HELP BUT I DONT KNOW **** ABOUT CODES SORRY:(
SavageSun4x4
03-10-2006, 02:02 PM
I WISH I COULD HELP BUT I DONT KNOW **** ABOUT CODES SORRY:(
Eric, you alright anyhow:D
SavageSun4x4
03-10-2006, 03:44 PM
Problem solved I think: seems a connector was not crimped correctly inside of the male plug on injector to fuel rail connector. http://www.fiveomotorsport.com/PartsJPEGs/Injectors/ConnectEV6Male.jpg It was not only making a poor connection, it was allowing water to be ingested in to the plug.

If you want the connector from the Jeep dealership, you have to buy the entire harness, which is mega dollars. However my best friend Goggle found the part for me at the price of $18.50 each or $74 for a set of 4 which I ordered. Sadly, the Jeep is down until they come in Monday or Tuesday.:)

Thanks to all of you that posted a response as it helped get the brain cells juices flowing which led to my doing a visual inspection at the wire level. I started tracing at the injector back and found it right off.:)

Clearly, a electrical continuity/resistance check would have done the same thing, but being that I was overwhelmed with offers to help I passed on it and just did it the hard way.

So for all that flooded me with offers of: just bring it by the house, maybe between the two of us we can sort it out. Thanks; maybe I can do the same for you some day.:rolleyes:
wannabejeeper
03-10-2006, 03:55 PM
Did you use the cleaner that you put in the tank? If so, that stuff will only do so much, an injector flush is required to completely clean the injectors. Even that will not always unstick them. If you KNOW it's not the injector then you need to start looking at the wiring and the source of injector signal, PCM.
SavageSun4x4
03-10-2006, 04:29 PM
Did you use the cleaner that you put in the tank? If so, that stuff will only do so much, an injector flush is required to completely clean the injectors. Even that will not always unstick them. If you KNOW it's not the injector then you need to start looking at the wiring and the source of injector signal, PCM.
see post #15
wannabejeeper
03-10-2006, 04:39 PM
Yeah, sorry about that, I had that paged pulled up and was trying to reply for a while but work was getting in the way:mad: .

Congrats on finding the problem.
SavageSun4x4
03-10-2006, 04:42 PM
Yeah, sorry about that, I had that paged pulled up and was trying to reply for a while but work was getting in the way:mad: .

Congrats on finding the problem.
Thats, ok, figured you hadn't seen it since the post times were so close:)

and you were right in your assesment