Throttle Position Signal Input
Table of contents
P1890 CHEVROLET Possible Causes
- Faulty Throttle Position Sensor
- Throttle Position Sensor harness is open or shorted
- Throttle Position Sensor circuit poor electrical connection
How do I fix code P1890 CHEVROLET?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P1890 CHEVROLET code
The cost of diagnosing the P1890 CHEVROLET code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1890 CHEVROLET Description
With the key on or engine running, the Powertrain Control Module (PCM) determines that the throttle position or throttle angle signal was unreliable for 1 second.