andrew__g

my b18 sputters somedays. One day it was sputtering so my uncle did a compression test for me and it was low. Today he did another one and the compression was perect. ANyone know whats wrong?

Former User

When was your last basic tune up (plugs, wires, cap, rotor)? Have you inspected all of these important ignition components?

blackGSRcoupe94

did you perform both compression tests at the same engine temps?

andrew__g

yea the engine temps would have been the same. I put new plugs in about 2 months ago. When the car is running and i remove the plug wire on the probelm cylinder there was no chage in how the engine ideled the day when the compression was poor

Former User

Check the wires, cap, and rotor. Do you have spark at that bad plug?

andrew__g

yea there is spark. originally i thought it might have been a burnt valve. is that possible?

andrew__g

bump