Go Back   DodgeForum.com > Dodge Vans & CUVs > Dodge Caravan
Sign in using an external account
Register Forgot Password?


Dodge Caravan The Dodge Caravan is the best selling mini van from Dodge. How many Dodge Caravan owners here at DodgeForum.com would agree? Discuss it now!

Please Help! 2007 Grand Caravan SXT 3.8 P2308

Reply
 
 
 
 
Thread Tools Search this Thread
  #1  
Old 05-31-2011, 12:17 PM
Fredster Fredster is offline
Registered User
Garage is empty, add now
 
Join Date: May 2011
Posts: 3
Angry Please Help! 2007 Grand Caravan SXT 3.8 P2308

I replaced my spark plugs & wires 6 months ago on my 07 Grand Caravan SXT 3.8 because it was starting to hesitate here & there. The hesitation came back so I bought a new coil pack, Installed it & boom code P2308 came up. Frustrated on how to fix this problem I bought another coil figuring I got a bad one. Same Problem. Re-installed the original & now the code appears for it as well. ARGHHHHHHH!!!! Do you have to program the computer or something after you replace a COIL? Please help, this is the only car I can move my family in. The ignition wires are only six months old. What did I do wrong?
This ad is not displayed to registered and logged-in members.
Register your free account today and become a member on Dodge Forums!
Reply With Quote
  #2  
Old 06-01-2011, 12:16 AM
master tech's Avatar
master tech master tech is offline
Multi-section Moderator
Garage is empty, add now
 
Join Date: Apr 2007
Vehicle: Mits P/U , Dodge avenger(1996) .
Location: San Bruno ,Ca
Posts: 10,524
Leonard Pierce
Default

Welcome to DF
Did you use champion plugs and mopar wire set? Also what did you gap the plugs at when you replaced them? Here is part of a pdf file. If you need the rest, send me a pm with an email address.
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
IGNSymptom 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 COIL
__________________
Dodge Master Tech.
Reply With Quote
  #3  
Old 06-16-2011, 01:15 AM
Fredster Fredster is offline
Registered User
Garage is empty, add now
 
Join Date: May 2011
Posts: 3
Default

I appreciate all the info. At the end it turned out to be a coil 3 driver on the computer. I picked one up online in Florida (ace). Car worked great for a day and the original code I got when I replace my plugs & o2 sensors P0420 came back. At that point I bought a cat & had it installed for $140 bucks. All that hesitating has also loosened my Ball joint on the drivers side. But as per the electrical no more codes since. Horray!!!!!!
Reply With Quote
  #4  
Old 06-16-2011, 01:24 AM
master tech's Avatar
master tech master tech is offline
Multi-section Moderator
Garage is empty, add now
 
Join Date: Apr 2007
Vehicle: Mits P/U , Dodge avenger(1996) .
Location: San Bruno ,Ca
Posts: 10,524
Leonard Pierce
Default

Great news. Thank you for the update.
__________________
Dodge Master Tech.
Reply With Quote
  #5  
Old 06-16-2011, 02:33 PM
scotter5 scotter5 is offline
Veteran
Garage is empty, add now
 
Join Date: Dec 2010
Vehicle: 06 caravan, 3.8,
Location: ft lauderdale, fl area
Posts: 341
Default

Trying to understand more about autos--What does "cat" represent?

When you said "coil 3 driver on computer", what is meant? I understand what coil is but not driver on computer

thanks--scott
Reply With Quote
  #6  
Old 06-16-2011, 11:30 PM
Cougar41 Cougar41 is offline
Record Breaker
Garage is empty, add now
 
Join Date: Feb 2011
Location: SoCal
Posts: 1,734
Default

"Cat" is short for the catalytic converter. Part of the emissions system installed inline in the exhaust under your van.

"Coil 3 driver on the computer". The Powertrain Control Module (PCM/computer) supplies a constant voltage to the coil pack while the engine is running. It also contains a voltage driver circuit for each of the three coils in the coil pack that turns the ground on and off to the individual coils.
__________________
We took the time to answer your post. Please give us some time and post the fix. You'll help hundreds!

Last edited by Cougar41; 06-16-2011 at 11:34 PM..
Reply With Quote
  #7  
Old 06-17-2011, 01:59 PM
scotter5 scotter5 is offline
Veteran
Garage is empty, add now
 
Join Date: Dec 2010
Vehicle: 06 caravan, 3.8,
Location: ft lauderdale, fl area
Posts: 341
Default

That clears most of it for me but, he said "coil 3 driver on the computer." Therefore what is he contributing to the success? Was it coil #3 or the Pcm/computer or both. I would like to reference this if anyone or myself has similar problem.

thanks---scott
Reply With Quote
  #8  
Old 06-21-2011, 12:08 AM
Fredster Fredster is offline
Registered User
Garage is empty, add now
 
Join Date: May 2011
Posts: 3
Default

The PCM (Power Control Module) is the Computer. Coil driver 3 is in the computer. The ignition coil pack consists of three coils in on piece. The coil drivers job is to break the magnetic field in the coil which will induce a high current through the spark plug wires to the spark plug. The PCM in this car has three coil drivers for the coil pack. I hope that answers your question.
Reply With Quote
  #9  
Old 06-21-2011, 12:53 PM
scotter5 scotter5 is offline
Veteran
Garage is empty, add now
 
Join Date: Dec 2010
Vehicle: 06 caravan, 3.8,
Location: ft lauderdale, fl area
Posts: 341
Default

Yep, that does it. Thanks for taking the time.

scott
Reply With Quote
Old 06-21-2011, 12:53 PM
 
 
 
Reply




Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump

Join DodgeForum
Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -4. The time now is 04:14 AM.

Internet Brands, Inc.


Contact Details & Emails