Frequently Asked Questions

Q: How can I contact you?

A: Find our contact information on the “About” page.

Q: What setting do I use for my motor?

A: Please see our Common TPS Settings Page (click here).

Q: I need help!

A: Contact us using the info at the top of this FAQ, we’ll do our best to help!

Q: What does TPS stand for?

A: Throttle Position Sensor

Q: What shipping method do you use to deliver my new TPS Tool?

A: Amazon orders ship direct from Amazon warehouses and utilize Amazon Prime shipping for Prime members. If ordering direct from or eBay, your order will ship from S. Florida: Pro Powered domestic orders will be shipped via USPS Priority Mail, pigtail orders will be shipped via USPS standard or Ground Advantage mail. International orders will be shipped via USPS International service, or eBay international service. eBay is the preferred method for international orders.

Q: Do you accept returns?

A: Yes, any products purchased from are returnable for any reason for 30 days from the date of delivery.

Q: I’m not in the USA, what is the best way to order?

A: If you’re in Canada and an Amazon member, check eBay is the better international option for all other orders. eBay typically handles all taxes and tariffs which results in a smoother delivery process.

Q: How do I know if my TPS needs adjustment?

A: If your TPS has been removed or replaced with a new one, it will need to be adjusted to factory spec. If your engine isn’t running properly and the reason isn’t obvious, your TPS may need adjustment.

Q: What effect does adjusting the TPS have?

A: Adjusting the TPS to a higher voltage will cause the engine to run richer (more fuel), and adjusting the TPS to a lower voltage will cause the engine to run leaner (less fuel).

Q: Can the engine be tuned by adjusting the TPS?

A: Yes, on most engines adjusting the TPS can be a viable way to fine tune the way it runs. If major changes are needed, it may be necessary to modify the fuel map in the engines ECU.

Q: If my engine has a carburetor, does adjusting the TPS make a difference?

A: On most carbureted engines, the TPS will only affect the timing. On a fuel injected engine, the TPS affects both timing and fueling. For this reason, adjusting the TPS on an engine with a carburetor typically does not give the significant change in performance that you would see when adjusting the TPS on a fuel injected engine.

Q: Is there any warranty on products?

A: Yes, products are covered by a 1-year warranty for the original purchaser. If a product needs repair during the warranty period, will cover all shipping charges. If your tool is damaged out of warranty, please contact us for assistance. Our goal is to keep our customers happy and all products are fully repairable, so please give us a chance to help!

Please contact us with any other questions and we will help as quickly as we can!