My RX8 has 14k miles on it. It also has the CZ stage 1.1 with the M flash. Recently, I've noticed the car hesitates or "skips" below 5k RPM at WOT I'm pretty sure it does it with the CZ unit completely disconnected, too. It's mostly during the first 10 min of operation (when warming up). A couple of times it's been so bad (when I 1st got the reflash), the car has stalled out and the idle was seriously erratic. I make frequent short trips and someone else suggested it was the spark plugs fouled. Can anyone shed some light on this? The car goes in to be looked at next Tue., so I'm hoping you guys have some directions I can send the mechanics to. Thank you in advance.

 

Try watching this thread --> https://www.rx8club.com/showthread.p...threadid=31503