Official Gen 3 COBB Tuning Thread - Accessport, Intake Bracket, etc

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heyitsfish

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If y'all haven't already, go ahead and shoot a message over to [email protected] and we'll see what we can do to replicate the issue in-house and resolve. Thanks!

I get this issue every time I change the tire size. I have to uninstall the the Access Port and reinstall. Seems to be a bug. Would like to change the tire size because my speedo is off after switching to 37s. @COBB Tuning

Any update on this? Same issue just popped up on my truck when changing the tire size.
 

heyitsfish

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I changed the tire size to 35 and it now reads the correct speed. For some reason going over that would throw that error. So I’ve just left it at that
Yeah after connecting with Cobb, I got the same feedback. Apparently using the tire diameter posted online for a non-inflated tire is not the correct method and they are looking for the diameter of the mounted tire under load. Which even for a 37" KO2 is just under 35" I guess.
 

SurfRaptor

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Yeah after connecting with Cobb, I got the same feedback. Apparently using the tire diameter posted online for a non-inflated tire is not the correct method and they are looking for the diameter of the mounted tire under load. Which even for a 37" KO2 is just under 35" I guess.
In the jeep world we used to just measure it with a tape measure and that would get us almost perfect.
 

GooseTuned

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I received my ECU back from Cobb yesterday morning. I dropped it off at the UPS store on Monday morning and had it back in my hands on Wednesday morning. I loaded up the initial 93 Octane Stage2 map from @GooseTuned and ready to do some data logging!
Heck yeah!
 
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