Quantcast Ford Truck Club Forum - View Single Post - California smog woes
View Single Post
Old October 5th, 2019, 08:09 AM
The Bone's Avatar
The Bone The Bone is offline

Join Date: Nov 2018
Location: Norcal
Posts: 29
Likes : 0
Liked 3 Times in 3 Posts

Sounds like the truck is running rich. Do you have a tune in the truck? How far did you drive the truck before the test? you may have to drive 10 miles to make sure everything is up to temperature before the test. You didn't mention air filter. It has to be clean. It could mean that the computer is dumping to much fuel. Does the exhaust smell rich?