What is the difference?
Thread Starter
|
Registered User
Joined: Oct 2007
Posts: 31
Likes: 0
From: Northeastern OH
What is the difference?
OK, code 43 again.......but I got it narrowed down I think. What is the difference between: P0351 Ignition Coil No. 1 Primary Circuit - and -P0352 Ignition Coil No. 2 Primary Circuit???? These are the ODBII codes under key code 43. The reason I ask is that I checked my spark on mycylinders. I am getting very weak spark from number 1 cyl. and number 4 cyl. Could this be related in any way??? I have replace wires/plugs/coil..........
Grand Champion
Joined: Jan 2007
Posts: 5,584
Likes: 0
From: Lima, Ohio
RE: What is the difference?
The PCM sends out two different signals to the coil pack, and if I remember correctly, one circuit is for 1 and 4, the other is for 2 and 3. This could possibly mean your PCM is faulty, and it needs to be replaced.
Thread Starter
|
Registered User
Joined: Oct 2007
Posts: 31
Likes: 0
From: Northeastern OH
RE: What is the difference?
I've tried both my PCM'S. I have the stock/factory as well as the Mopar race/non-fed emission one as well. I get the same problem with both PCM'S. As well as the same code. Could I have a possible problem in my wiring harness? Could a bad ground somewhere in the engine compartment cause this problem? Can I check voltage to the plug that connects to the coil pack?
Rookie
Joined: Feb 2008
Posts: 76
Likes: 1
RE: What is the difference?
I'd look at the wiring. The PCM grounds the 1&4 together to cause the spark, and the 2&3 together. If the spark is weak on the 1&4, the ground to that coil is bad. The positiveis used by both coils.
Joined: May 2007
Posts: 17
Likes: 0
RE: What is the difference?
I'm going to get in on this post because I have a related problem. I was getting code 11 and 43 on my own from the car (OBD-II)when having my problems. After taking it to autozone and getting them to hook the(DRB-II) up to it he told me pretty much the same thing as is being said here. Code 43 I think being a result of whatever is going on with the coil pack signal.
I have replaced the coil pack and I'm still pulling up the same OBD-II codes as before and the car is having the same problems. I was also thinking it may be the PCM.
So then I need to check the wiring? When you say its in the harness, the one to the pcm or the wiring harness to the coil pack? Where then is the ground for the coil pack and can it be checked?
I have replaced the coil pack and I'm still pulling up the same OBD-II codes as before and the car is having the same problems. I was also thinking it may be the PCM.
So then I need to check the wiring? When you say its in the harness, the one to the pcm or the wiring harness to the coil pack? Where then is the ground for the coil pack and can it be checked?
