Thank you for choosing JM Automotive for your high-performance needs.

Please answer all of these questions to the best of your knowledge so the process of tuning your car goes as smoothly as possible and you get the most for your money. This is designed to benefit you so this process is as smooth as possible and that you do not show up with a car that cannot be tuned or does not meet your goals.

We will be taking your car to speeds in excess of 100 mph on the dyno. If you are not comfortable taking your car up to 100 mph then it is not ready to be dyno tuned. If your car vibrates or pulls to one side at high speeds we can not tune it.

Car Information

Year

Manufacturer

Model

Transmission type
automanual

List of all the modifications to your car or the parts you/we are installing. If they are stock please write STOCK or if you do not know please write UNKNOWN.

ECU brand and Model Number

ECU Location (We need to be able to access the ECU when tuning. If it is hidden away please remove all necessary covers so we can easily access it. Sometime we have to use our cable instead of yours so we need to be able to quickly plug in so we don't have to charge you to remove everything to access the ECU.)

Turbo Brand and Size (if applicable)

Boost Controller Type (if applicable)

Wastegate Spring Pressure (if applicable)(The lowest boost pressure we can run is spring pressure, if you want to run 6psi but have a 10psi spring we cant do that. Likewise if you want to run 15psi and have a 10psi spring with no boost controller we can only run 10psi)

Intercooler Brand (if applicable)

Stock Intake or Brand

Stock Header or Brand

Stock Fuel Injectors or Brand(size)

Flex Fuel Kit / Gauge Brand (if applicable)

Fuel Pressure Sensor Brand (if applicable)

Stock Fuel Pressure Regulator or Brand

If aftermarket FPR, what is the PSI base pressure

Stock Fuel Pump or Brand (Size)

Stock Intake Air Temp (IAT) sensor or brand

Stock Manifold Absolute Pressure (MAP) sensor Brand (size)

Base timing set with timing light?(When running an aftermarket ECU it is critical to set base ignition timing. If base timing is not set the ignition advance may be advanced/retarded from what we are seeing in logs/ on the computer screen. If the base timing is significantly off your engine could be easily damaged as we could be running much more advanced ignition timing than what we see on the computer screen under full throttle.

Do you need us to set your Base timing with a timing light?(Extra $50 charge)

Stock Engine or Built

If you have a built engine, please list any known part specs/brands

Stock Heads or Built

If you have a built heads, please list any known part specs/brands

Do you have any other modifications? If so, please list

What kind of fuel is currently in your car?
(91 non oxy, 91, 92, 93, E85, or other)

What fuel are we tuning on?
(91 non oxy, 91, 92, 93, E85, Flex Fuel, or dual tunes)

Do you have an aftermarket AFR sensor wired into the ECU? If so, what ECU pin is it wired to?
(We can not tune your car with only the factory O2 sensor, most aftermarket ECU's cant use a factory O2 sensor. In order to have full closed loop control of the fueling we require an aftermarket AFR sensor such as AEM or Innovative. If you don’t have an AFR sensor, are unsure, or need one wired in please let us know and we can schedule a time before your tune to wire it in.)

Have you connected to your ECU with a laptop and confirmed all sensors are reading correctly?
(We need all the sensors working and reading correctly. Example- Intake and Coolant temp reading what you would expect? Intake / Coolant temp can be easily checked when the engine is cold as they should both be very close to ambient temp. Is the Throttle Position Sensor (TPS) calibrated and reading 0-100%?)

Do you currently have or have had any Check Engine Lights?
(We cannot tune a car if it has a check engine light due to any mechanical problems - Examples: front O2 sensor, TGV stuck closed but not deleted, speed sensor code causing limp mode)Please list any codes

Do you have ANY mechanical problems?
(Example- running rich, will not idle, poor fuel economy, boost/vacuum leaks, not hitting target boost, overheating, major oil leaks, or any coolant leaks. We can not tune a car with mechanical problems.)

How many miles do you estimate are on your clutch, is it a stock or aftermarket clutch, and do you suspect it's slipping?
Knowing how many miles on the clutch or if its slipping are important because we can not tune a car with a slipping clutch. If you suspect it's slipping it would be a good idea to get it replaced before the tune, If it slips on the dyno we unfortunately have to stop tuning and you will be charged for the time the car was on the dyno and will have to schedule another time to finish the tune after the clutch is replaced and broken in.
Knowing what clutch you have is important because they are rated on the torque level they can hold. If you request a torque level higher then it holds and we go past that level and the clutch slips we will have to stop the tune there. The clutch may continue to slip even if we lower the power and you will ultimately have to replace the clutch.

How many miles ago was the last time your spark plugs were replaced and what were they gapped to?
(If you do not know or have more than 15000 miles on them we highly recommend replacing them.)

When was the last time you changed oil?
(If it has been more than 2 months or 2000 miles we highly recommend changing your oil before the tune.)

Do you have any exhaust leaks?
(Any exhaust leak can throw off either the factory o2 sensor or our dyno Wide Band Sensor and cause the fueling to not be tuned correctly.)
You must have an exhaust tail pipe that exits somewhere outside the vehicle and not underneath. I.E. the tailpipe must come to the edge of the vehicle and not terminate anywhere under the car. Our Exhaust Extraction System in the Dyno room uses a tube we put right next to the tailpipe to extract the exhaust from the room

How Strong is your Battery/ Alternator?
(We can not tune with a dead battery or a charging system that does not work)

What are your Power Goals/ Expectations and Intended use i.e. Drag Racing, Road Racing, Auto-X, Daily Driving, Racing in Mexico, with your tune?
(Letting us know all your expectations of the tune prior to the tune will help us guide you in the right direction as you may not have all the necessary performance parts to achieve your goal.)

Do you have any parts needed prior to your tune or any parts installed?
(Our expert techs install performance parts all day. Our labor rates are very fair. And our expert support can help you decide which parts to purchase from us to achieve your goals.)

Do you need a base map to drive your car to our shop with the new parts installed?
(We can email you a base map to drive on with your new modifications. It can be unsafe to drive after installing modifications. Having a base map allows you to drive your car and double check it rather than waiting and towing it in and not being able to double check everything.)

If you have anything wrong with your car that needs addressing before the scheduled tune date, you will want to let us know. Our expert technicians can be booked out as well, so you will want to get on the schedule to be ready for your tune.

If you have parts that you want installed prior to the tune or need parts you will want to let us know. We can help you get those parts since we are distributors of most performance brandshttps://www.jmautomn.com/parts

Date (required):

Email (required):

Name (required):

Did you read the Pre-Tune Checklist? By filling out and submitting this form you are acknowledging you have read the pre tune checklist.