Throttle Position Signal - Abnormal Update Rate
Throttle position sensor is sending signals that are too erratic or slow for the computer to process reliably.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The throttle position sensor sends data about how much you press the gas pedal, but it's not sending that data quickly enough or is too inconsistent, which confuses the engine computer.
What the computer is actually seeing
The engine control module (ECM) expects to receive a stable and timely throttle position signal, typically updated within a few milliseconds. If it doesn't, it flags this as a problem.
What a healthy reading looks like
Throttle position should update within 10 milliseconds at a given position with a range typically from 0-100% based on pedal input.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Inspect throttle position sensor wiring and connectors for damage or corrosion. Decision: If damaged, repair or replace; If good, continue.
- 2Check the throttle body for cleanliness. It may be dirty or sticking. Decision: Clean if dirty; If clean, continue.
- 3Using a scan tool, monitor the throttle position sensor values while opening the throttle manually. Decision: If inconsistent or erroneous readings, replace the throttle position sensor; If readings are stable, continue.
- 4Check the engine control module (ECM) for any software updates or reprogramming needs. Decision: If updates available, perform them; If updated, there may be an internal ECM issue requiring replacement.
Common causes
- Faulty throttle position sensor
- Wiring issues or damaged connectors
- Contamination or mechanical binding in the throttle body
- ECM software issues
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code active?
It can cause drivability issues, so fix it soon to avoid further problems.
Will this code come back after clearing it?
If the issue isn't resolved, it will likely return.
Why does this code pair with other throttle-related codes?
Because they all relate to the throttle position sensor and its accuracy.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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