Gays I Dont Know Why This Happens But I Have Stage 2 Whit Stage 3 Ecu And The Check Engine Start Blinkim Can You Tell How Can I Fix It The Code Is P0300

 

go to the dealer and have them fix it, it shouldnt be stage 3 tune if you paid for a stage 2 install

 

youre not gonna get much help calling us "gays" lol

 

my bad i was tiping wrong

 

P0300 - Engine Misfire Detected ECM, PCM

Have you checked your spark plugs? Does the Stage III ecm need a crank re-learn?

 

the spark plug are fine i have new one iridium ix. but i need a tech 2 to do the re learn crank chaft proces

 

 

You should not need a relearn with a stage 3 PCM. It is designed to be plug and play. I would switch to your stage 2 PCM and see if you still get the check engine light. This will determine whether the PCM is the cause, which I highly doubt.

What are your other mods besides stage 2?

 

I have stage2 fujita intake no cat gmpp header and catback

 

I have stage2 fujita intake no cat gmpp header and catback