back pressure test question
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Rock Crawling
Joined: Jan 2012
Posts: 498
Likes: 20
From: Belton, TX
stuff
Ive got a few on going o2 issues and the last motor I had was dumping coolant into the exhaust. New o2s all around. Have current going to all o2s and no wire issues that I could find. All o2s are bosch with plugs. Im stumped. Wanted to make sure the cats are still flowing properly.
Super Moderator
Joined: Jan 2011
Posts: 16,322
Likes: 88
From: Savannah Georgia
What codes do you have? With front and rear O2 sensors, the ECU monitors CAT operation. Codes like P0420 and P0430 would be expected if CAT was marginal. And even in Hell, where ice water is in short supply, the State of Texas may pay up to $600 of your repair - http://www.tceq.texas.gov/airquality...le_repair.html
Last edited by Savannah Buzz; Mar 29, 2013 at 03:07 PM.
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Rock Crawling
Joined: Jan 2012
Posts: 498
Likes: 20
From: Belton, TX
Well, found 2 EO upstream o2s locally for a descent price so picked them up and installed them. Erased codes and drove around for a while. No codes for the first time ever with this truck. Even the three amigos stayed away for the celebration. Hope it stays this way.
Recovery Vehicle
Joined: Jul 2011
Posts: 1,132
Likes: 32
From: Austin, TX
What codes do you have? With front and rear O2 sensors, the ECU monitors CAT operation. Codes like P0420 and P0430 would be expected if CAT was marginal. And even in Hell, where ice water is in short supply, the State of Texas may pay up to $600 of your repair - Vehicle Repair Assistance
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