Long time reader, first time poster

So, I have noticed that under full throttle in certain situations, when the boost spikes, i get the "service engine soon" light flash a few times and then stay off. my car is stock except a downpipe and exhaust. The ECU was flashed by English Racing, called and emailed them but got no answer. Doesn't feel like boost cut because it is not harsh, sounds normal. I am worried about detonation or knock. I also don't want to take it to the dealer for fear of re-flash to stock. This happens a few times a week when I get on the throttle and bothers me to no end.

Any ideas? Thanks!

 

Tephra's flash CEL on knock mod. Might not be anything serious, but sounds like it's just warning you about detonation.

 

thanks! i found the information i was looking for. i didn't know the technical term for the mod.

i assume some knock is normal. the CEL is flashing 3 times slowly, so depending on how they flashed it, it may not be a big deal? you would think english racing would have called back if they wanted my money for a re-tune. oh well...

i may try a small race fuel mix and see what happens...

anyone had a similar experience they fixed without a re-tune? i understand finding the sweet spot is hard without proper tuning.

 

if it does it every once and awhile then you are fine, if it happens every time you go into boost then you need a retune

 

This is correct. Do you know who the previous owner was?

 

buy yourself a knock sensor

 

??

All evos have a knock sensor from the factory and that is what the knock light mod is referencing....