Intake Manifold Position Sensor/Range Performance Problem (Bank 1)
The intake manifold position sensor is reporting an error in position performance for bank 1.
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)
This code means the sensor that tracks how far the intake manifold is opening isn't getting the correct signals, which can mess with air flow into the engine.
What the computer is actually seeing
The ECM expects a certain voltage from the intake manifold position sensor between 0.5V (fully closed) and 4.5V (fully open). If the voltage is outside this range or the performance isn't as expected, the code triggers.
What a healthy reading looks like
Voltage should range from 0.5V to 4.5V. The expected position should correlate to these voltages based on the preset calibration of the manifold for each RPM and load condition.
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.
- 1Check the basic wiring and connector for the intake manifold position sensor for damage or corrosion.
- 2Monitor the voltage at the intake manifold position sensor with a multimeter; expected values are 0.5V to 4.5V.
- 3If voltage is out of range, inspect for open circuits or shorts in the wiring harness.
- 4If wiring is good, replace the intake manifold position sensor and retest.
- 5If replacing the sensor doesn’t fix it, inspect the intake manifold and actuator for physical damage or binding.
Common causes
- Faulty intake manifold position sensor
- Wiring issues (shorts or opens)
- Faulty intake manifold or actuator
- Vacuum leaks affecting manifold position
- ECM software issue
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
You can drive but performance might be impacted; fix soon.
Will this code come back after repair?
If the repair is done properly, it shouldn't return.
Why might this code appear along with P2004?
P2004 indicates a related issue with the intake manifold runner control system.
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