I have tuned my AFR map and this is what i got after multiple logs and tune of Fuel Map. But the 3k ~ 3.6k RPM AFR still remain at 13.5 AFR even if i have increase the fuel map value until 8.3.

Thanks and hope to get some advices and comments from fellow forumers.

 

does your WB need calibrating?

 

Already calibrated and result still the same. Walbro 255 also installed. Using JDM RS Mivec Map and my car is JDM Evo IX year 05, November model.

 

Turn off the leanspool?

 

Oh yeah, i still left the lean spool "ON". Should I Disable it? Any side effects? I have read all about the lean spool and know it will lean the AFR, but will it have any side effects? Coz mitsubishi engineer won't enable it without any reasons.

Just my 2 cents.. peace!

 

No real side effects of disabling it, except your AFR map will look a little closer to actual AFR's. Some tuners leave it on, some turn it off. It's all a matter of preference. I have mine turned off so I have better control over it, and it doesn't run artifically lean when I don't want it to.

It worked great on stock cars because it made the turbo spool a little faster than with it off. Personally to me, it's another "system" that sometimes does funky things with your tune, so that's why I have mine turned off. But remember, that's only MY preference/choice/opinion. Some cars I have tuned I have left it on because it was faster that way.

 

Thanks Bro tkklemann,
So, i will turn the leanspool off by setting the leanspool on and off valeu to both 2500rpm then and see how it goes.. with the AFR.

 

Bro tkklemann,

Thanks for your suggestion on the leanspool, i have disable it and the problem is solve i guess and then now my AFR is running damn rich... need to fine tune the AFR tomorrow.