Whats up guys-
Your advice on my last thread really helped me to diagnose my o2 sensor problem and fix it...so for that many thanks! Now on to the latest....My check engine light was on but my truck was running great, I had bought it from a fella about a month ago so I wanted to fix anything that was wrong...naturally. So I was getting around 20 mpg and filling up once a week which I thought was great for the 6cyl but now after fixing the 2 o2 sensors and getting rid of the check engine light my truck feels like it has less torque and my mileage is not even 17. I drove across town and watched the gauge drope like a rock? I calculated it at 16.7. Could the malfunctioning sensors have been telling the computer to run the truck lean?? Could the issue be unrelated- Has anyone ever heard of this?? and is there any way to play with the timing on a 02 TRD 4 dr Taco without f'n up everything?