FearTheDentist
07-20-2007, 03:53 PM
OK- totally non-jeep question here, but I know some of you are pretty handy with a diesel.
My 7.3l F250 Super Duty which had to pass emissions here in Az for the first time this year, and unfortunately it failed. The emissions tech told me the vehicle was running rich, and thought maybe I had a chip in it.
The truck is not chipped, and has no performance mods of any sort. The only service issues the motor has had since I bought it were a bad camshaft position sensor and bad fuel pump (both of which were replaced of course). The engine does not throw any trouble codes.
Any suggestions about how to troubleshoot this or any common causes I could look into?
Thanks!
My 7.3l F250 Super Duty which had to pass emissions here in Az for the first time this year, and unfortunately it failed. The emissions tech told me the vehicle was running rich, and thought maybe I had a chip in it.
The truck is not chipped, and has no performance mods of any sort. The only service issues the motor has had since I bought it were a bad camshaft position sensor and bad fuel pump (both of which were replaced of course). The engine does not throw any trouble codes.
Any suggestions about how to troubleshoot this or any common causes I could look into?
Thanks!