Gate Select Position Circuit High
The engine's intake manifold gate control circuit is stuck in a high voltage position, like a stuck door that won't close properly. This prevents proper air distribution to the cylinders, affecting engine performance.
The ECM monitors the voltage signal from the intake manifold tuning valve position sensor or solenoid circuit. When voltage remains abnormally high instead of cycling between low and high states, the ECU detects a malfunction. The circuit should respond to commands but appears stuck at maximum voltage.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Gate Position Signal Voltage | 0.5-4.5V (cycling or commanded) | >4.5V sustained or stuck high |
| Solenoid Response Time | 10-100ms to change state | No response or delayed response |
Code P0907 is a moderate fault. You can generally drive to a workshop, but avoid long trips or high-load driving (motorway, uphill towing) until it is diagnosed. If the code keeps returning after clearing, or if you notice the symptoms listed above worsening, do not delay professional diagnosis. Many moderate codes have multiple possible root causes — a mechanic with live OBD data can identify the exact fault more efficiently than part-by-part trial and error.
Once the fault is repaired, P0907 can be cleared using any OBD-II scanner. Connect the scanner, navigate to "Clear Codes" or "Erase DTCs," and confirm. The check engine light turns off immediately.
The code will return if the root cause was not actually fixed. The ECM re-detects the fault within 1–3 drive cycles and sets the code again.