Just got my truck back from the dealer. I took it in for a CEL, the DTC on my EJA said it was code #p2271. It was said to be a rich signal on the #1 o2 sensor, dealer said this could be the tuner causing this and it could possibly void my warranty. They unplugged the tuner from the diagnostic port and said to drive the truck and see if it happens again. I guess if they cant blame it on the tuner they will fix it under the warranty. Anybody else have the same problem?
Thanks, Tony.