Scanner in Murritea Area

[spanky86]

Hi im new here and Raul @ stealth sent me. anyways i was wondering if there might be someone that has a scanner that could help me my superchips is reading p0308 which is cylinder #8 missfire which i have read is either compresiion or injector issue. And i was wondering if someone could help me with this truck seems to idle fine no noise truck did lose a small amount of power. thanks

[Muley]

I have AE. Live just east of Ramona. Could meet you somewhere if need be or you are welcome to come here.
Mike
760-787-1769

[Chewbacca]

I cannot believe how generous you are Mike. Always helping everyone out. You win person of the year in my book.

[Muley]

NO that is Gene's award. He is the Master Helper of people. :angelwings:

[spanky86]

Mike im just wondering if that scanner will tell me if its an injector issue or a compression issue sorry i dont know much about the scanners thanks alot

[Muley]

It will just give you the code(s).

[spanky86]

i already have the code but thank you you anyway but i drove the truck today and a few days ago it seems to be intermetinent so i dont know if there is actually a problem or not with cylinder 8. i forgot to mention that the turbo was rebuilt and it think that they may have lenghtend the actuator rod but im not positive thank you for all ur help though and for the very quick reply

[Muley]

I think you want to clear the code, run the truck and see if it sets again. Cylinder #8 misfire. Could be nothing or wiring harness or inejctor IMO. I guess that is where a scan tool comes in handy. You can clear the code and see what happens. Then research what the cause could be...

There are others on here that know more than I do. Perhaps someone will chime in that has seen this.

We could run a buzz test and cylinder contribution and see if it passes. That would tell a lot.

[fords4life]

I think the cylinder contribution test would be a good one to run. That would let you know if it is an injector issue, or at least give you a little insight. That being said, the #8 injector has a tendency to not run quite as well as the other cylinders because of the dead head in the factory fuel system. If the issue is intermittent, it could be the UVC(under valve cover) harness. Might be starting to go bad and just not working all the time.

[spanky86]

yeah if we could run a buzz test ort contribution test thats what im looking for my superchips reads and deletes codes ill pull the valve cover and look at the harness
thanks austin

[weweld]

If you get the harness out ohm out all the wires and be sure to wiggle each one to check for a short. Also check fuel pressure as that can cause an a misfire too. Besure and do the buss test to make sure the solenoids work and watch the tach to make sure each sweep of the tach is the same.

[fords4life]

If you get the harness out ohm out all the wires and be sure to wiggle each one to check for a short. Also check fuel pressure as that can cause an a misfire too. Besure and do the buss test to make sure the solenoids work and watch the tach to make sure each sweep of the tach is the same.

Does the tach sweep on the Buzz test? If so, I didn't know that....something I'll have to look at the next time.

[Muley]

As it buzzes the injectors the tach goes up. The nice thing is the buzz test will tell you if your injectors are working so if you still fail the cylinder contribution test then something else may be wrong like a valve or push rod...
With the stock fuel system #8 can read low sometimes anyway.

[spanky86]

ive been drivin the truck and am not getting that code any more the truck seems to run on all eight now like it did before, i dont have stock fuel system i have a bwd reg. return kit. it is around 60 psi at idle. but i belevie that i am having some sort of turbo issue see other post plz.