Hey all,

I have a '15 JKU Sahara thats currently on a 2.5" lift with 35's. I have looking to get a programmer/tuner for a while to adjust for the increase in tires and also try to restore some performance and maybe toss some tunes on there.

I know the range of these devices has a decent spread so I want to make sure I am selecting the product that fits my needs and doesn't include extra stuff I won't utilize. I was looking at the Superchips products (FlashCal/FlashPaq/TrailDash) and other ones like JScan. I'm not sure I like the idea of having to connect my phone to yet another device to something, so I don't mind the standalone aspect of the superchips products. I basically just want to see what you all use and what might be the best for me down the line.

This Jeep will continue to be modified so I'd like to get a robust system that could potentially help me out down the line with future mods.

Thanks in advance!
Eric

 

I use the Innova 3160 RS, it's a little pricey but a great OBDII tool.

As mentioned in a previous post, I worked through the wiring, code-throwing nightmare of installing aftermarket seats in my 2016 JK - and the Innova came through with shining colors !

I quick note about linking your scanner up to your phone - this is actually quite useful, especially if you need to send the trouble codes to a shop or vendor. On a couple of occasions I had to send a bunch of codes to a shop - and being able to bring the codes up on my phone, and then take a screen shot to include in an email was super convenient.

Anyways, my two cents ....

Neville

 

Can the Innova make the changes to account for the larger tires? I'm interested in the various tunes/features some of the more Jeep specific ones offer.

Again, I dont know much about diagnostic tools so I might have the wrong idea about some of this stuff.

 

JScan will do what you need initially. $55 and your are done. As far as tuners I use HPTuners but as stated in a post last week it is a license to kill your Jeep if you don't know what you are doing.

 

I don't mind spending a little more money to get a unit that encompasses all the things I need it to do. If I get Jscan, it seems like I still need to make a purchase for a tuner. I'm leaning more toward buying something that would include a scanner and a tuner, and I'm a sucker for screens/information so the TrailDash seems awesome but I don't know if it's worth the money.

 

In my opinion, unless you are adding a supercharger or the like, a Tuner is a waste of money there is really no extra power to be gained. The true answer to your performance quest is to regear the axles to match the 35" tires, typically 4.56 gears would be the way to go.

The J-Scan will allow you to alter any of the settings in the computer you will ever need to. Assuming you have an Auto transmission adjusting the tire size will help with the shift points, it will also allow you to lower the tire pressure warning threshold as the 35's require much lower pressure then the stock tires.

 

I have the Trail Dash for mine. I also had a FlashPaq for my F-150. If I had it to do over again, I'd go with the FlashPaq for the JK. Touch screen on the Trail Dash is iffy, user interface is a lot easier on the FlashPaq. I don't use the Trail Dash for info when driving, that part of it hasn't been useful for me.

 

I have the Superchips TD2, and have been really happy with it. Huge upgrade from the original Trail Dash. It will allow you to adjust for tire size and gear ratio changes, load performance and crawl tunes, monitor all kinds of gauges, read and clear DTCs, disable the TPMS system, and control lights, sway bars, and lockers.

I was able to correct for a crazy non-standard gear ratio and tire height that I needed to make everything right after my 1-ton swap because my axles use the Ford 60 tooth reluctors instead of the Jeep 52 tooth. As mentioned, 1-tons (with 5.13s), 40s, steel bumpers, fenders, and rockers. Stock 3.6/ auto, with the exception of the TD2, Banks cold air kit, and Borla Crawler cat-back. I have plenty of power to do anything I should be doing in the Jeep, and can easily cruise down the highway at 80+mph with no problems. She gets a little sketchy over 110 though

As previously stated, proper gearing is CRUCIAL, but I disagree with the tuner being a waste of money statement. And this is coming from someone who has tuned a shit-ton of vehicles with HP Tuners.

 

The HPT only does the engine and transmission functions for a Chev in a Jeep. For body functions ( body functions) I supplement this with the JScan which costs around $60 all in. Less than dinner out..