- 80
- 0
having some problem with the air pump on my '87 f 250. took some members advice and had most of the pollution crap removed. Got through emissions test but carbon monoxide level is rather high. The air pump is still installed but when I put the belt back on it it backfires pretty fierce. A RV cam was installed before I got the truck. I more worried about next years inspection. How can I lower the carbon monoxide level? Is this related to the air pump?
Lawrence
Lawrence