hotstix asked if I could figure out how to disable it. Turns out that it wasn't to hard to find the P0300 subroutines, but they are not disabled by using the ECU options as they are in the Evo 8/9. Instead, its a 1-byte table. Here is the full disclosure: Without a doubt, setting this table to zero will cause the P0300 routines to be skipped just like is done in the Evo 8/9 code. However, this table affects a whole bunch of stuff in the Evo 10 code (that I'm not going to bother to try to understand) whereas in the Evo 8/9 code, the ECU options that control the P0300 only affect a few other things. So, try at your own risk. With that said, here it is for 52680015-22:

 

Thanks Mychailo!

 

Could you give us a cliffnotes version of what disabling the p0300 effects?

Thank you

 

The P0300 is the misfire CEL. Several of you guys have found that a lightweight flywheel can trigger the P0300 because the lighter flywheel does not dampen the rotational accelerations from the individual combustion events as effectively. Now if you're asking what other things disabling the P0300 affects, as I said before I don't know. The P0300 on/off switch shows up in about 20 different places. The Evo 10 code base is enormous compared to the Evo 8/9, and its much harder to decipher.

Perhaps the better solution might be to adjust the parameters within the P0300 routine to make it harder to trigger the P0300, but I'd rather see someone try the on/off switch first. I suspect it will be fine to use it.

 

will it effect DTC's P0301-P0304?

 

Yes, it will kill them all.

 

The way I interpreted what Mr, Fred is saying is that yes, this will disable all p030x codes. I am a little hesitant to use this for that reason.

 

Thank you good sir.

I am testing it out. I will post any issues if there is any

 

Nice work!

 

Chet, do you currently have the p0300 issue?

I have a local that I can test it on. But I was kind of waiting to see if others have issues first.

 

Golden can u translate this table to work with 55570106?

 

Sure do.

So far so good.

 

If it kills all the codes then I will pass on it. I have only had 2 p0300's this year so not worth killing all the codes in case something does happen. Strange the p0300 is tied to all the others.

 

So a light flywheel only causes a P0300 and not any of the specific cylinder misfire codes?

 

^I would believe so since it isn't a specific cylinder that is at fault. Also, my car will throw P0300 randomly without throwing a specific cylinder code.