On a 2007 Honda CR-V, diagnostic trouble code P0507 means the idle control system is reporting an idle RPM higher than the engine control unit expects. In plain terms, the engine is idling too fast.
What P0507 means for this model
Honda CR-Vs from this era use electronic throttle control (drive-by-wire). The ECU (ECM) commands a target idle speed, and the throttle body and idle control circuitry adjust air to meet that target. When the actual idle exceeds the commanded speed, P0507 is set and the check engine light may come on.
How the idle system works
The throttle plate is controlled by the ECM and, when the engine is idling, the idle air control (or idle speed control) circuit meters air to keep the engine at the target idle. A high idle means something in the air path or control loop is allowing too much air or the control loop isn’t closing properly.
Common causes of P0507 on a 2007 CR-V
There are several frequent culprits that lead to a high idle on this model. The list below covers the most common sources of extra air or a stuck idle control path.
- Vacuum leaks in intake hoses, around the intake manifold, throttle body gasket, or PCV tubing
- Dirty, sticking, or faulty throttle body and idle control valve / circuit
- Faulty or dirty MAF (mass air flow) or MAP (manifold absolute pressure) sensors
- PCV valve or PCV hose leaks or failure
- Electrical issues such as corroded connectors or damaged wiring in the ETC/throttle-body system
- EGR valve sticking or issues in some circumstances
Addressing leaks, cleaning or replacing the throttle body, and ensuring the idle control component operates normally are common first steps to fix the P0507.
Diagnosis and fixes
To diagnose and fix P0507 on a 2007 CR-V, follow these steps. Use a basic OBD-II scanner with live data if available; a professional-grade scan tool is even better for sensor readings. Start with the simplest checks and proceed to component tests.
- Check for vacuum leaks using visual inspection and, if available, a smoke test. Spray around hoses, the throttle body, and gaskets while the engine is idling; a change in idle indicates a leak.
- Inspect the PCV valve and hoses; replace if cracked, stuck, or clogged.
- Clean the throttle body and the idle air control passages. Ensure the throttle plate moves freely and the IAC port is clear. If the IAC is malfunctioning, replacement may be required.
- Test or clean the MAF and MAP sensors. Clean the MAF with approved cleaner; test sensors and compare readings to specification with a scan tool. Replace if out of range.
- Check for any throttle-body calibration or software updates. Some Hondas require a dealer reset or ECU reprogramming after cleaning or replacement.
- Clear the codes with the scan tool and perform a road test to verify whether the idle returns to normal. If the code returns, proceed with further diagnosis.
- Look for related codes (for example P0505 Idle Control System Malfunction) that might point to the source of the problem.
- If the problem persists despite all the above steps, seek professional diagnosis. Persistent high idle can cause drivability issues and increased emissions.
After performing fixes, recheck the idle speed when the engine is warm and ensure there are no recurring codes. If P0507 keeps returning, a dealership-level diagnosis or deeper electrical testing may be required.
Safety, emissions, and maintenance considerations
A consistently high idle wastes fuel, can accelerate engine wear, and may cause emissions issues. If the check engine light remains illuminated after repairs, have the vehicle retested to confirm the fault is resolved.
Summary
P0507 on a 2007 Honda CR-V signals that the idle control system is producing an idle RPM higher than the target. Common causes include vacuum leaks, a dirty or faulty throttle body and idle control components, sensor or PCV issues, and electrical faults. A structured diagnostic approach—inspect for leaks, clean components, test sensors, reset codes, and road test—solves most cases. If the issue persists, consult a qualified technician for more advanced testing or PCM-related concerns.