My son put an entire can of Sea Foam into the gas tank and filled with premium fuel. At first the 89 xr7 ran but would stutter if you jumped on the gas. Today when coming home from school, the boost gauge went 5psi and the car would not go over 20 mph. He limped it home and I am looking for a little help to figure it out. The car is bone stock.
Any ideas?
Any ideas?