• Test cars with single and dual injectors.

• Only use this tester on GM TBI. (For all other TBI, use our STU-448U.)

• GM cars with TBI generally do not have a Schrader valve to connect with; therefore, an in-line tester such as this is required.

• The 2-1/2" gauge has a dual scale dial with ranges from 0-60 PSI and 0-4 bar.

• Hook on gauge enables the Technician to hang up gauge and hose assembly to free his hands.

• Includes 16" gauge hose with Quick Coupler, all necessary adapters, and Quick Disconnect hose assembly for fast and efficient service.

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