gt fast
Active Member
- Joined
- November 19, 2010
- Messages
- 72
- Reaction score
- 0
- Year, Model & Trim Level
- 92 xl
ok so i went and got my emissions done and for one i thought i was going to fail since i have only one cat and a flowmaster. however, i passed the test, but i had really high nox, right under failing. it says my combustion temperature is high, how can i bring it down. oh its a 92 explorer
also, ive noticed lately my truck is getting slower and slower with acceleration. i use seafoam, and its always better after i do but i dont want to use a can of seafoam twice a week. i did have a cold air intake on my truck, but in colorado where i am i got alot of spark knock for some reason, so i switched back to stock intake setup. it didnt have much of a differance till atleast 2 weeks later so i dont think its from the change. where did my acceleration go, and not sure if it will help but somedays my exhaust is loader then on other days, and i drive the same everhwhere i go. im at probably around 5-7 thousand feet above sealevel, anyone got any ideas.
also, ive noticed lately my truck is getting slower and slower with acceleration. i use seafoam, and its always better after i do but i dont want to use a can of seafoam twice a week. i did have a cold air intake on my truck, but in colorado where i am i got alot of spark knock for some reason, so i switched back to stock intake setup. it didnt have much of a differance till atleast 2 weeks later so i dont think its from the change. where did my acceleration go, and not sure if it will help but somedays my exhaust is loader then on other days, and i drive the same everhwhere i go. im at probably around 5-7 thousand feet above sealevel, anyone got any ideas.
