OTC 3398 Fuel Injection Pulse Tester

SKU: OTC3398
UPC: 731413008818
Shipping: Calculated at Checkout

OTC 3398 Pulse Tester

Fuel injector testing requires precision equipment. This vehicle-powered tool fills that requirement. It enables you to check cylinder balance by firing individual injectors at ½-second increments in three different ranges: 1 pulse of 500 milliseconds, 50 pulses of 10 milliseconds, 100 pulses of 5 milliseconds.


Power and output lights indicate test activation
Includes wiring harness adapter and instructions
No. 3398 – Fuel injection pulse tester. Wt., 8 oz

GM Special Tool Number: J-39021

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OTC Warranty