|
|
Town and Country Rough Running, P2308 code, Coil? Wires? Plugs?
|
|
|
| |
|
djs789
New User
Jul 20, 2010, 8:17 AM
Post #1 of 5
(3168 views)
|
Town and Country Rough Running, P2308 code, Coil? Wires? Plugs?
|
Sign In
|
|
I have a 2006 Chrysler Town and Country 3.3l. The check engine light is on and I am getting P2308 error code. The Parts store print out says this is an erratic signal from the ignition coil secondary circuit. The probable causes are: 1.Faulty spark plug or coil boot or 2.Failed ignition coil. The van is running rough, Has a rough idle, Hesitation, Sputtering, Excessive engine vibration. I replaced the spark plug wires a month ago. I replaced the coil and the spark plugs today. The van is still running rough any suggestions?
|
|
| |
|
Sidom
Veteran
/ Moderator
Jul 20, 2010, 8:15 PM
Post #2 of 5
(3156 views)
|
Re: Town and Country Rough Running, P2308 code, Coil? Wires? Plugs?
|
Sign In
|
|
There are a few more other things that can cause this problem then what you have listed. That code is for the coil circuit for #3 cyl. You should've had a P0303 as well...strange... Since you've changed the plugs with no change, what you can do is clear the codes and switch the #3 wire to a different cyl. If you get a code for the cyl you moved the wire to then you have a bad wire... After that it gets a lot more indepth and you will need a scanner and some other equipment to check out the circuit out to see where the problem lies..........
|
|
| |
|
djs789
New User
Jul 21, 2010, 10:18 AM
Post #3 of 5
(3143 views)
|
Re: Town and Country Rough Running, P2308 code, Coil? Wires? Plugs?
|
Sign In
|
|
Update: I checked for arcing at night. No arcing. I rechecked and set gaps on the new plugs I put in. The p2308 code is an error in the ignition coil #3. Coil #3 fires cylinders 2 and 5. Erased the code. Then I flopped sprk plug wires from another cylinder for the number 2 wire. I get the same p2308 code come. I did the same with the 5 cylinder wire with the same results. So I am pretty sure its not the wires, plugs, and coil (which is new). I checked with a TEST LIGHT the control wires for all three of the coils with the engine running. Pin #1 (brown/orange wire) control wire for coil #3 LIGHT GLOWS CONSTANT. I think this is wrong. Pin #4 (dark blue/tan wire) control wire for coil #2 LIGHT FLASHES - I think this is normal. Pin #3 (dark blue/dark green wire) control wire for coil #1 LIGHT FLASHES - I think this is normal. Since the control wire glows the wire must not be bad or grounded. I think the pcm must be bad. Probably a good bet the computer is bad and should be replaced? I don't know. Is there anything else I should check? The pcm is expensive. What do you think? Any suggestions on replaing the computer if you think I should?
|
|
| |
|
Hemi Guy
User
Jul 21, 2010, 2:25 PM
Post #4 of 5
(3134 views)
|
Re: Town and Country Rough Running, P2308 code, Coil? Wires? Plugs?
|
Sign In
|
|
First make sure the ignition wire boots are dry and free of al moisture. If that doesn’t do it Chrysler has a pcm update (re-flash) for p2308. (TSB number 18-008-05).
|
|
| |
|
djs789
New User
Jul 28, 2010, 7:54 AM
Post #5 of 5
(3107 views)
|
Re: Town and Country Rough Running, P2308 code, Coil? Wires? Plugs?
|
Sign In
|
|
Update: I traced a bad coil driver signal going into the coil all the way back to back to the pcm for coil#3. I determined the pcm had a bad coil driver for the #3 coil. I ordered the remanned computer from Auto Computer Exchange in FL. I installed the new computer. It seems to work. The computer has a lifetime warranty so I think I am golden. Thanks for your help.
|
|
| |
|