Ecutek tune concern

Jhill

Just because it flashes doesn't necessarily mean it's bad, it's just letting you know it had an occurrence and adjusted timing. I wouldn't doubt if the oem tune gets some pre ignition going over the grapevine (oem tune doesn't flash the sel for pre ignition BTW so you would know if it happened) that's what the knock sensor is there for and to self correct for that extreme load. If tuned to not pre ignite under an extreme load condition/ high heat condition (like going over the grapevine in 98 degree weather) then the car would not be getting full power in a regular condition (normal load i.e. not a massive hill climb in the middle of august). It just shouldn't be a constant thing but to have a pre ignition occurrence under non normal circumstances (and were not talking audible marbles in a can knock here either) then I'm not worried.