When my 95 3.0 24V failed for NOX a few years back, I gave thorough Sea Foam treatment for starters (other things tune-up related had been recently done), and left as is until the gas tank ran down. Then chenged to fresh oil, filled the tank to 1/4 with super high octane, added a bottle of octane boost on top. It passed then. No idea how this might help with your CO...


Big Truck: 00, 3.5, Endeavor, 5-Spd drive line in hand!
Little Truck: 87, 2.6T I/C, MT, LSDs, Tonneau Top
Her Truck: 03, 3.8, 20th Anniv, 65k
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