Or if you have a infa red thermometer then shoot each primary to see if you have a cool cyl.

 

Or if you dont have one... Get a water bottle, poke a tiny hole in the top and shoot the water on the primary. If it doesnt boil off, then you found your problem cylinder.

 

Or touch each primary and see which is the coolest.

 

Try licking each primary, you tounge is heat sensitive. If you find one that doesnt make you cry then u have a issue.

 

Try not to burn your face though. Your forehead will probably get real close to the other primaries.

 

From my past experience, you can use a different finger for each primary. Then just compare burn marks. It is easy and free. Can't beat that

 

LOL, I already have a water spray bottle. Ill try that first. Could this be caused by a broken valve spring? They are patriot Duals. There was hardly any load when it happened. Dont even think I was in boost. Maybe 1-2psi max. Coolant was about 203 IAT was around 120 and AFR was 12.3. And I just got on it a good bit up the road. I also ordered some FIC 1000 injectors.

 

Does it have a missfire? How lean is it at idle? If its like 19 afr it shouldn't idle for **** UNLESS you got one cyl lean throwing off the reading and the others are ok.

 

Idle will jump from 16-17 to 19. I'll take quick log and post it up

 

Im not seeing any misfires on the Aeroforce Interceptor gauge. Ill hook up the efilive scantool and look for a mis.
Do I want to log current of history misfire?