Check the listing for details. Performance Tool - Electronic Fuel Injection GM S.C.P.I Test Noid Light (W85106). Condition: New. Listed at 9.99 USD. You are bidding on a **Brand New** Electronic Fuel Injection GM S.C.P.I. Test (Noid) Light from Performance Tool. **Part # W85106** - Quickly checks EFI system signals (GM S.C.P.I.) Directions of Use: 1. Disconnect harness connector from injector 2. Plug test light into connector and start engine: -Flashing light indicates electrical system is functioning correctly -Steady light or no light indicates malfunctioning electrical system -If problem persists, check fuel system If you have any questions or concerns please feel free to drop me a message!Returns accepted, but must be initiated 30 days from delivery of the item. Returned items must be in original shipped condition (Unused) and include all accessories/parts. ==================================================================================================================================================== The item will be shipped via USPS Ground Advantage (Free) or USPS Priority Mail (+$4.00) as soon as payment is made. I pride myself on fast shipping so you will receive your merchandise in as little time as possible with your fast payment.==================================================================================================================================================== The item will also be packaged professionally to ensure it arrives to you safely! A Tracking # will be provided after the package has been mailed so that you may keep track of its whereabouts.