Not sure what it means. I was going 55mph, put it in third and got up to 8k rpms. Everything was fine but the check engine light started flashing. Does anyone know why this is?

 

Knock?

 

Chipped ecu? Maybe its programmed with a shift light.

 

^Is that possible??? Shift light programmed on Check Engine light??? that's just bad ju-ju bro... lol...

 

was your cel already on? quick search on google shows flashing cel = sever misfire, which could damage the cat, among other things...

 

could be.... to the TS did you recently get kpro?

 

I bought the car how it is. I do not have kpro. It tacs out at 8500 rpms. And no the cel was not on before.

 

my CEL light comes on as my shift light

 

8500 rpm. definitely a reflash, k100, or maybe even k-pro. have you check the ecu? how does the car run? anyways its either your car is getting knocks or its shift light.

 

The car runs fine. No strange sounds. I ALWAYS use no ethanol premium...Ill check the ECU.

 

Yes, check engine light programmed as shift light, very possible. Beats using a big tach in my opinon.

 

^Holy batman!!! might be too small, but def. cool idea

 

what engine is it? hope its the k20a2...if its not then theres your problem...

 

did you replace the sparks lately also?

 

I have a 06 rsx-s stock...pretty sure thats a k20a2. and no I havent changed my spark plugs.

 

okay you got the right 8k reving engine. try replacing the spark plugs if they are not new. my friend had a prob with his engine and it was his old *** spark plugs messing everything up.

 

x2 mines programmed as shift light too, maybe your car came with it stock?

 

06 type s is a k20z1 its alil better then the a2 in some aspects such as cam and stuff. but when your check engine light flashes that usually means its sensing a misfire

 

If the car was tuned, it was probably set up as a shift light. My integra does the same thing.

 

Me too. Plus, if I'm above 75% throttle and 5000 rpm, my alternator turns off

 

you have a k20z1...k20a2's came in 02-04 rsx type s's...

red-line is technically 8200...but when or if you get kpro and some bolt-ons itll be 8600

 

I doubt you have K pro or a reflash. A simple look at your ecu will tell you. A flashing CEL is an indication of a misfire bad enough to damage the cat. All late model obd2 cars have this function.

 

Im just curious about the reasoning of having your alternator shut off at 5k? What if your battery goes bad while your driving and your running off the alternator until you hit 5k then your car would in theory die? Do you get that big of a gain by having that function?

 

i learn something every day!

 

1. Cars run off batteries, not alternators. Alternators are only there to (re)charge the battery. Real (drag) race cars don't even have alternators!!!

2. If my battery was ever so weak that my car literally died above 5000 rpm, I don't think it would have started the car in the first place.

Turning the alternator off is worth about 3 or 4 horsepower, not a big deal. But since I can, why not? Any K-series on AEM can be programmed do this (as well as a million other things). Keep in mind, since it's rpm and tps based, I can cruise around all day at 6000 rpm with the alternator 'on', it won't turn 'off' till i exceed 75% throttle (and I can set the thresholds anywhere I want, these just work well for me)
OEM's use the same strategy for WOT a/c cut-offs.