FAQ and Overly generalized information.

Frequently Asked Questions

For GM and Chrysler/Dodge/Ram/Jeep remote tunes

You book an appointment, and I connect to your Windows laptop over the internet with TeamViewer QuickSupport (free download at the top of this site).
I make the initial changes while the car is parked.
You take a short drive while the laptop datalogs. Then you return to Wi-Fi so I can correct fueling.
A second drive lets me dial in power and address any concerns you have.
Most vehicles take 1.5–2 hours. Some can take up to 3.
Every car is different. I tailor the tune to what your vehicle needs, whether that’s a weak torque converter, a lack of fuel at wide-open throttle, spark knock, or something else.

A Windows 10 or 11 laptop, fully charged or with a car charger, since sessions can run up to 3 hours
Good Wi-Fi where the car is parked (Wi-Fi isn’t needed while driving)
HP Tuners or a compatible module, or you can rent or buy one from me (see below)
TeamViewer QuickSupport installed
A car that’s ready to drive: tires aired up and a healthy battery. If it’s been sitting, have a jump pack or cables handy.
Your remaining balance, ready to pay during the appointment

GM remote tune (you already have HP Tuners or equivalent): $375
Chrysler/Dodge/Ram/Jeep remote tune (you already have HP Tuners or equivalent): $400
Remote tune + tuner rental: $500, with $100 refunded when the tuner is returned
Retunes for most mods: $275
Nitrous, turbo, and supercharged setups are priced by build, typically 2–3× standard.
Boosted applications, 8- and 10-speed transmissions, and certain model years can change pricing. If you’re not sure, ask. Don’t assume.

A $100 deposit reserves your spot and goes toward your tune.
You aren’t on the schedule until the deposit is paid. Available times can change while others are booking.
After paying, message me so I can put you down. Also text your full name to (817) 627-5938 so I have a backup way to reach you.
Weekend and 6 PM appointments cost an extra $150.

Deposits are non-refundable.
If you cancel at least 3 hours before your appointment, your $100 carries over to your tune.
If you cancel with less than 3 hours’ notice, the deposit is forfeited.
Arriving more than 15 minutes late counts as a cancellation and forfeits the deposit.

The remaining balance is still due on tuning day.
Second appointments are discounted to $175 when booked at 7 AM Central. Any other time slot is a standard $250 appointment.

Exact changes depend on your vehicle, but a typical tune includes the following.

Power & Fueling

VE and MAF fueling corrected. Many older cars run about 15% lean from the factory and never make their rated power.
Spark timing optimized for your altitude
Power enrichment delay removed
Throttle allowed to open fully (100%)
Throttle and torque limiters disabled

Transmission

Limiters & Factory Settings

Speed limiter removed
Rev limiter set for your engine
“Abuse mode” disabled. This is what makes the car buck during burnouts or when powering out of a corner.
Reduced power (limp) mode disabled
Cylinder deactivation disabled (AFM/DOD on GM, MDS on Dodge)
A/C cuts out at high RPM to free up power

Cooling

Fuel & Sound Options

Flex fuel enabled and pre-tuned. This requires an E85 kit, available from me or on this site.
Decel fuel cutoff disabled for more pops and burbles. It works best without cats and while holding gears.
Optional crackle tune, recommended only if your cats are removed or will be soon

Emissions

It depends on how far off your factory fueling is. Cars running lean can see significant gains.
If your fueling is already on target, expect roughly 18–25 whp and 15–18 lb-ft on 93 octane, depending on engine health.
Results vary by platform and setup.

Converter testing: A slipping torque converter is one of the main things that kills these transmissions. I raise converter pressure and test it on the drive. If it still slips, I disable lockup entirely.
Smart lockup: If the converter is healthy, it only locks during highway cruising (top gear, about 55+ mph). Highway MPG stays the same. City MPG may drop slightly.
Torque reduction on shifts: Power is pulled briefly during each shift. This takes load off the transmission, speeds up shifts, and reduces wear.
Idle pressure: Raised to stop slip bangs caused by factory pressure drop and worn seals.

The tuner module is what connects your laptop to the vehicle.
Once the rental is paid, you’re placed in line for the next available tuner. The wait before it ships is usually 1–2 weeks.
After we finish and you’re happy with the tune, return it within 3 business days using the included USPS Priority return label, and send me the drop-off receipt.
Some tuners come from other customers, so you may need to print a label. If you don’t have a printer, you can hand-write the address and I’ll send instructions.
Your $100 is refunded once the tuner is returned.

Owning your own module gives you:

Easier retunes when you add mods later
Faster help with future problems. I can pull live data to diagnose a check engine light or other issue.
The ability for me to tune your friends’ vehicles with it, and you make a profit doing it

Join the JPPT customer group on Facebook. It’s mostly customers sharing their cars, experiences, and reviews, with builds ranging from stock to 1,000 hp: https://www.facebook.com/groups/571303806838541

Message me on Facebook or through the Contact page. I’m happy to go over your setup before you order.