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7oH7 07-02-2013 01:09 AM

05 Dodge Magnum R/T
OK all gear heads......
I've got a problem and out of ideas. I just did a minor tune up on my wifes 05 Dodge Magnum R/T. 5.7 Hemi. I change the all 16!!!!! spark plugs and the wire set. Now I'm getting a fault code P0308. Which is a missfire on the #8 cylinder.

Parts installed.
Champion copper core plugs gapped @ .045 and a duralast wire set.

What I've done so far......
1. Swapped the 2 spark plugs to the #4 cylinder, rechecked gaps.
2. Swapped the coil to the #2 cylinder.
3. Exchanged the wire set for a new set.
4. Reset the ECU twice now.

After all that. still getting the code. Any ideas? I don't friggin know what to do now!!!

Before you ask....yes I'm a member over at the magnum forumz. But I haven't gotten any help over there just yet. I'm still crossing my fingers that someone can help

HemiLonestar 07-02-2013 05:25 PM

Did the coil code move with the coil or no?

7oH7 07-02-2013 06:24 PM

no. none of the moves that ive made changeed the code. still the #8

HemiLonestar 07-02-2013 08:33 PM

If its the same cylinder regardless, then it sounds like the connection to the coil is messed up, maybe where it plugs in.

7oH7 07-03-2013 02:13 AM

removed coil connector and gave it a blast of contact cleaner. pulled off the air cleaner and and wiped out the throttle body the best i could and cleaned the air temp sensor since i was in there. and while i waxed my truck had the fuse to the ecu pulled for a good 2 hours. now its a wait and see till the wife drives it a bit tommorow

7oH7 07-04-2013 05:30 PM

Nope, still getting the code

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