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Discussion Starter · #1 ·
I revved my car today & I looked at my ap & my cyl 4 was at -0.50.. I reset it , did it again a few hours later & same exact thing ! & I did it another time & it was good , but I’m sure it will do it again. any suggestions ?! Thanks.
mishimoto fmic
Catback exhaust
Cpe intake
Cobb ots stage 1 tune.
 

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2018 Ford Focus ST1
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A -.5 correction is not anything to worry about. If you're seeing stuff in the -1.5 or more for negative corrections then your fuel is probably garbage and you need to feed it higher octane.

BTW, get a better intercooler ASAP. The factory one is lousy when it comes to keeping the charge air temps down.
 

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I revved my car today & I looked at my ap & my cyl 4 was at -0.50.. I reset it , did it again a few hours later & same exact thing ! & I did it another time & it was good , but I’m sure it will do it again. any suggestions ?! Thanks.
mishimoto fmic
Catback exhaust
Cpe intake
Cobb ots stage 1 tune.
You should read more about ignition corrections.

What they mean, and during what events are they relevant, before you go crazy over nothing.

I think stratified has some good info on their blog.

Also this stuff has been covered here, probably a hundred times already. This forum was started in 2012, so there's 8 years of questions, answers, reasearch, development on here.
 

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2015 Ford Focus ST
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You should read more about ignition corrections.

What they mean, and during what events are they relevant, before you go crazy over nothing.

I think stratified has some good info on their blog.

Also this stuff has been covered here, probably a hundred times already. This forum was started in 2012, so there's 8 years of questions, answers, reasearch, development on here.
You rang?
 

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Discussion Starter · #5 ·
A -.5 correction is not anything to worry about. If you're seeing stuff in the -1.5 or more for negative corrections then your fuel is probably garbage and you need to feed it higher octane.

BTW, get a better intercooler ASAP. The factory one is lousy when it comes to keeping the charge air temps down.
I listed my mods at the end of my thing, I just installed a mishimoto intercooler last night!
 

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2018 Ford Focus ST1
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1,421 Posts
I listed my mods at the end of my thing, I just installed a mishimoto intercooler last night!
Sorry... Can I blame missing it on the fact I wrote that before coffee this morning? :sleep::sleep::sleep:
 
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