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?

 

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

 

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

 

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

 

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

 

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

 

bump