PO353
Thread Starter
|
Trailering
Joined: Apr 2022
Posts: 16
Likes: 2
From: Southern NH
PO353
I've been chasing this code for over a week now and at a loss.. Let's start...
2004 F150 4.6l with 220K on her. Newer engine last year with 140K on it.
Sputtering showed up and puled the PO353 and a P2195 code. One being cylinder 3 circuit fault, the other the Bank 1 sensor 1 fault.
First thing was to swap #3 coil and plug with #1 and see if the code jumps. It did not. Wiring fault I assumed.
Next was to check the connecter, saw wear and replaced. No change
Tested voltage and within .02v of battery. Figured close enough
Tested trigger side with Noid Light. trigger works.
Confirmed spark. Coil and plug out of cylinder. I have spark
Inspected wiring back to PCM. Couldn't find a issue. I replaced the wire, pin 12 to coil with a 16g wire (18g is OEM). No Joy..
Hear the Noise Suppression capacitor could be it. Pulled, tested cleaned contacts and replaced. No Joy
Now when I figure it's the PCM it's self. Replaced the PCM.
I'm in process of replacing Bank 1 Sensor 1 O2 sensor. It's a bear to get at and going to drop the exhaust today to replace it.
I'm lost here.. I'm cleaning grounds every time I come across another one. I want the O2 sensor changed out and eliminate that issue. I have no idea where to go from here!
Thoughts anyone?
2004 F150 4.6l with 220K on her. Newer engine last year with 140K on it.
Sputtering showed up and puled the PO353 and a P2195 code. One being cylinder 3 circuit fault, the other the Bank 1 sensor 1 fault.
First thing was to swap #3 coil and plug with #1 and see if the code jumps. It did not. Wiring fault I assumed.
Next was to check the connecter, saw wear and replaced. No change
Tested voltage and within .02v of battery. Figured close enough
Tested trigger side with Noid Light. trigger works.
Confirmed spark. Coil and plug out of cylinder. I have spark
Inspected wiring back to PCM. Couldn't find a issue. I replaced the wire, pin 12 to coil with a 16g wire (18g is OEM). No Joy..
Hear the Noise Suppression capacitor could be it. Pulled, tested cleaned contacts and replaced. No Joy
Now when I figure it's the PCM it's self. Replaced the PCM.
I'm in process of replacing Bank 1 Sensor 1 O2 sensor. It's a bear to get at and going to drop the exhaust today to replace it.
I'm lost here.. I'm cleaning grounds every time I come across another one. I want the O2 sensor changed out and eliminate that issue. I have no idea where to go from here!
Thoughts anyone?
Last edited by Olddawgsrule; Apr 2, 2022 at 08:46 AM.
Hotshot
Joined: Feb 2004
Posts: 10,864
Likes: 2,624
From: The Shenandoah Valley
Bank 1 because coil #3 is on bank 1, and code 1353 told you was a circuit fault (wiring or connector, not coil), engine swapped, connectors get abused, wires tugged on, etc. Since replacing the coil connector, have you cleared the code and tried it again? Might be the contacts of the coil itself got damaged, but I see you swapped it with #1.
Thread Starter
|
Trailering
Joined: Apr 2022
Posts: 16
Likes: 2
From: Southern NH
Bank 1 because coil #3 is on bank 1, and code 1353 told you was a circuit fault (wiring or connector, not coil), engine swapped, connectors get abused, wires tugged on, etc. Since replacing the coil connector, have you cleared the code and tried it again? Might be the contacts of the coil itself got damaged, but I see you swapped it with #1.
I swapped it with #1, then read that another found his PO353 was actually an issue with Cylinder #1. So I swapped agin with cylinder #2. Same result.. No Joy.
My current thought is that I don't have consistent spark on #3. I'm trying to figure out FORscan and learn if I can read this...
Thread Starter
|
Trailering
Joined: Apr 2022
Posts: 16
Likes: 2
From: Southern NH
I posted here late in the process and have solved the issue. Well solved is not the right word, but it's running again!
Steps in order lead to rewiring to the Coil from the PCM and lastly replacing the PCM. Somewhere in this process the PO353 went away yet still showed on my Pocket OBD scanner. I went back to using FORscan (still learning this tool) and found that the PO353 was indeed gone and a new PO207 showed up (not showing on my pocket OBD). There's the rough/sputtering issue! With that cured, I have a good running 4.6l again!
I found a good site to learn more on using FORscan and lesson is learned not to fully trust these compact/portable/pocket OBD scanners. Use FORscan (I sound like an investor.. I'm not) it's real tool! I'm now a big fan it!
Here's his playlist of tutorials: https://www.youtube.com/playlist?lis...VGsYWBwz069YDM
Steps in order lead to rewiring to the Coil from the PCM and lastly replacing the PCM. Somewhere in this process the PO353 went away yet still showed on my Pocket OBD scanner. I went back to using FORscan (still learning this tool) and found that the PO353 was indeed gone and a new PO207 showed up (not showing on my pocket OBD). There's the rough/sputtering issue! With that cured, I have a good running 4.6l again!
I found a good site to learn more on using FORscan and lesson is learned not to fully trust these compact/portable/pocket OBD scanners. Use FORscan (I sound like an investor.. I'm not) it's real tool! I'm now a big fan it!
Here's his playlist of tutorials: https://www.youtube.com/playlist?lis...VGsYWBwz069YDM
Thread
Thread Starter
Forum
Replies
Last Post
Psygnosis
1997 - 2006 Expedition & Navigator
10
Jun 7, 2013 10:53 AM
