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?

 

Symptom List:
P2302-IGNITION COIL #1 SECONDARY CIRCUIT-INSUFFICIENT
IONIZATION
P2305-IGNITION COIL #2 SECONDARY CIRCUIT-INSUFFICIENT
IONIZATION
P2308-IGNITION COIL #3 SECONDARY CIRCUIT-INSUFFICIENT
IONIZATION
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P2302-IGNITION COIL #1 SECONDARY
CIRCUIT-INSUFFICIENT IONIZATION.
When Monitored and Set Condition:
P2302-IGNITION COIL #1 SECONDARY CIRCUIT-INSUFFICIENT IONIZATION
When Monitored: Engine Running.
Set Condition: If PCM detects that the secondary ignition burn time is incorrect or not
present an error is detected. One Trip Fault.
P2305-IGNITION COIL #2 SECONDARY CIRCUIT-INSUFFICIENT IONIZATION
When Monitored: Engine Running.
Set Condition: If PCM detects that the secondary ignition burn time is incorrect or not
present an error is detected. One Trip Fault
P2308-IGNITION COIL #3 SECONDARY CIRCUIT-INSUFFICIENT IONIZATION
When Monitored: Engine Running.
Set Condition: If PCM detects that the secondary ignition burn time is incorrect or not
present an error is detected. One Trip Fault
POSSIBLE CAUSES
INTERMITTENT CONDITION
SPARK PLUG
IGNITION WIRE
IGNITION COIL OPERATION
IGNITION COIL CONTROL CIRCUIT OPEN
COIL CONTROL CIRCUIT SHORTED TO GROUND
PCM
(A142) ASD RELAY OUTPUT CIRCUIT
IGNITION COI

 

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 replacing the computer if you think I should?

 

brown wire/orange wire is short to ground U are correct unplug the pcm and coil see if the ground is still there with the test light if it is grounded wire if not bad pcm
the pcm supplies the ground to which makes the coil fire this is known as a low side driver.

 

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.

 

welcome

 

I have a 04 t/c 3.8l with same problem no fire to coils 3/6
where is brown/orange wire on ecm, which plug