Terrific
NAXJA Forum User
- Location
- Brooksville, FL
I have a 97 with the 4.0. When I run 87 octane it pings badly when under load. With 93 octane it runs perfectly, no pinging at all.
Anyone have an idea what the problem could be? As far as I know the computer is untouched. The intake and exhaust is stock. I have run fuel injector cleaner through it every 3000 miles for the last 2 years.
It had this problem when I bought it, but I just ran 93 octane. Now I'd like to run 87 to save that 20 cents per gallon.
Could it be timing? Can the computer be modified to adjust the timing, or is the problem somewhere else?
Anyone have an idea what the problem could be? As far as I know the computer is untouched. The intake and exhaust is stock. I have run fuel injector cleaner through it every 3000 miles for the last 2 years.
It had this problem when I bought it, but I just ran 93 octane. Now I'd like to run 87 to save that 20 cents per gallon.
Could it be timing? Can the computer be modified to adjust the timing, or is the problem somewhere else?