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2001 Chevrolet Astro 4.3L CTS IAT sensor
Posted to GM Electrical on 5/24/2014 23 Replies

Coolant temperature sensor and intake air temp sensor are displaying -40c. Vehicle is staying in open loop and running rough. I get 5Volts reference at both sensors. When I grounded the signal wire to ECM scanner data stayed at -40c. Full tune up has been perf...

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Message Closed

car Vehicle Data

2001 Chevrolet Astro

VIN 1GCDM19W01
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedCts IAT Sensor
ConditionsOpen Loop
Message Closed

car Vehicle Data

2001 Chevrolet Astro

VIN 1GCDM19W01
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedCts IAT Sensor
ConditionsOpen Loop