HOW TO CORRECT SPEEDOMETER FOR TIRE SIZE AND USE SUPERCHIPS FLASHCAL JEEP WRANGLER Jk

[@stanpidgurskyjr297]

The best explanation video I've seen ...thanks for the details

[@jkxelor1295]

Can you keep the tire pressure monitor systems on and just adjust the tire pressure that you run?

[@Aaron-ge1hy]

Thanks so much for the walk through! 👍

[@lukewebster513]

When I turned on my flashcal. My stock tire size was like 189 am I missing something? Or do I just have to scroll all the way down to my 35 inch tires

[@gabrielbarriga535]

Im having the same problem

[@gabrielbarriga535]

Can you help me

[@MichaelStVitus]

Me too. Is this metric or what?

[@MrDstegner119]

Measure your tires with a tape measure. Use that measurement. I have 35" Nittos, and when measurement due to wear, I measured 33.5. It's perfect now

[@matthewsipe8905]

I'd there any benefit to this if you Don't have bigger tired and o gears??

[@Anthony-nr1nd]

Ok I got a question for you I have the this exact tuner and I programmed the Jeep for 35’s then I downsized to 33’s I was told to actually measure the tire and program the Jeep for that not the tire size that’s written on the tire itself. Have you heard of that?

[@ghostlyrich]

For more precision yes, that will give you a more precise measurement as it gives you an exact measurement, but to be honest with you as the tread where’s it’ll be off anyway

[@Anthony-nr1nd]

@@ghostlyrich that makes sense, but after further more research my Jeep is an automatic so what that tuner does supposedly is to tune the transmission to control the shift points to make it seem not as slow on take offs. Now I know putting big tires on requires more work like gears and possibly a power adjustment like a turbo or supercharger but I just want to drive right and reliable until I get the proper funds available to do my dream build right.

[@bradwhite3679]

Can you leave plugged in while driving? Would love to have mine in and mounted to the dash for looks.

[@ghostlyrich]

Yes shouldn’t be a problem but

[@darrenboone681]

Dude you saved me I thought I did the update and couldn't get the stupid think to work I didn't get the last part of the upload

[@admorris11]

I have 37’s on my JT and it will not adjust the speedometer. I have adjusted the tire size in every direction and it says that’s it calibrated, but the speedometer always reads 3mph higher than actual speed at 60mph indicated on Jeep. Not sure what the issue is

[@ghostlyrich]

Might have to ad a few up depending on tred

[@atomiclife9900]

where did you get you Vin info

[@juanhidalgo4932]

I just installed 285/70/17 on my Jeep and the gears aren’t changing to 8th would changing the tire size with this also fix the gear issue?

[@ghostlyrich]

It should help the speedo as for the transmission not shifting did this happen as soon as you changed tires. This could be software related for sure I would check in with your jeep service team at you local dealership

[@juanhidalgo4932]

@@ghostlyrich I do feel my Jeep a little more sluggish but the speed matches but might need to be calibrated. The shifting issue just started to occur yesterday the day I swapped my tires. Do you have any suggestions?

[@ghostlyrich]

@@juanhidalgo4932 it definitely will be more sluggish unfortunately the best way to fix it is to get your transmission tuned to properly handle the difference in drive line weight. You can buy box tuners but you would have to get your ecu unlocked if you can find a tuner shop near you I would suggest getting it tuned

[@juanhidalgo4932]

@@ghostlyrich thanks for your tips I’ll be looking into that!

[@juanhidalgo4932]

@@ghostlyrich that’s for the tips I’ll definitely be looking into that!

[@jeep_jk_x7183]

Ones it's been used with one jeep it won't be able to be used with other jeeps?

[@danielc.8006]

It can be unlinked if you use it to reset the original jeep to stock.

[@hoosierangler210]

Did you notice an improvement with your mpg after programming for 35s?

[@ghostlyrich]

It just corrected the speedo. I still have to calculate for the wear of the tires so to properly do that I might have to drop it from 35 to 33

[@Chanelyrs]

Did you use a tape measure to measure the size,or just set what ever said s on the tires? Thanks 🙏

[@ghostlyrich]

For most accurate use a tape measure i didnt bother because at the time i was driving so much i was going through tires like crazy so i never had accurate tread amount

[@michaelappleton8153]

Just bought one of these damn things for my JK but piece of crap isn't working.

[@ghostlyrich]

Check your fuse bro that's what happened to me I had one fuse that was dead and it wouldn't power on because of that

[@michaelappleton8153]

It powered on, because I could change RPM, low tire pressure on/of and the pressure that the monitor light came on, but that’s it. The diagnostics for the unit said it wasn’t “activated or something like that.

[@ghostlyrich]

@@michaelappleton8153 sorry I missed the reply did you try updating the unit with your computer

[@michaelappleton8153]

@@ghostlyrich after two calls to the company. They had to do an update of the unit on line. Thanks for getting back to me though!

[@stephendove2850]

Way cheaper options out there which do the same thing

[@DavidStierle]

They can't deny warranty service because of this.