Code 1226

[bjl4776]

Well i threw a very intermediate code that flashed on and off twice on a quick pull to 60 in second. Iv never thrown this code since iv had the car for three weeks. The code is for cylinder 3-4 knock sensor. I just did a coolant flush and swapped for the green **** the po had in it to BMW blue. I have always used 93 octane and most of it, including this fill-up is at a mobile. Could it have anything do to with that ******** 10% ethanol that they put in our gas. Car is a 95 M3 5spd w/ no mods.

PS: The new honda coolant is exactly the same as BMW coolant. Same levels of silicates and all that ********. It would be a good thing to know, unfortunately my cost for Honda coolant (I work at a dealer), is $25 a gallon and it is predilluted, but id figure id mention it anyway.

[632 Regal]

how?

exactly the same as BMW coolant

Reboot and clear the codes and see if it throws that code again, might be a fluke.