Hey guys!
I've got a problem. My SR randomly misfires at boost over 9 psi. It gets worse when boostin' more. My idle is a tiny bit erratic too. I am currently running a retuned ecu for 550cc and Z32 mafs.
I have changed the plugs twice, gapping them differently. I have also changed the fuel filter and cleaned up the air filter. I'm getting good fuel pressure.
Now I never had this problem for 5000km or so. It's been a major pain in the last 800km. I suspect the coilpacks or the ignitor chip. How can you check these?
Any other idea what's wrong with the car.