1991 Chevrolet Lumina ect wiring

1991 CHEVROLET LUMINA
161,000 MILES • 3.1L • 6 CYL • FWD • AUTOMATIC
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MIKE LUCKEY
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  • 38 POSTS
I would like to test the wiring for my ect sensor. can anyone tell me which wire is the signal and which is the ground.
Mar 8, 2015 at 8:35 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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WRENCHTECH
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Mar 8, 2015 at 9:39 AM
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MIKE LUCKEY
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  • 38 POSTS
thank you!
Mar 8, 2015 at 10:12 AM