What Does P065F Mean?
The intake manifold tuning valve (IMTV) on Bank 2 is not performing as expected. This is the Bank 2 counterpart to P065E, indicating the variable-length intake manifold runner valve for the second bank of cylinders is not achieving the expected airflow change. On V-engines, each bank may have its own IMTV. Symptoms are similar: reduced torque at certain RPM ranges and possible rough running.
Common Causes
35%
Intake manifold tuning valve stuck due to carbon buildup on the Bank 2 valve or shaft
25%
Broken or disconnected vacuum line to the Bank 2 IMTV actuator
20%
Failed Bank 2 IMTV actuator motor or solenoid
15%
Broken IMTV shaft, linkage, or butterfly in the Bank 2 intake manifold section
5%
Bank 2 IMTV position sensor malfunction
Diagnostic Steps
1
Using the scan tool, monitor Bank 2 IMTV position and commanded state. Compare Bank 2 response to Bank 1 — they should behave identically. Any divergence isolates the fault to Bank 2 hardware.
2
Inspect Bank 2 IMTV actuator, linkage, and vacuum lines. On V-engines, the Bank 2 actuator is often on the opposite side of the engine and may be harder to access — use a mirror and flashlight.
3
Check for carbon buildup on the Bank 2 valve. If P065E is also present, both banks may be carbon-fouled and a thorough intake cleaning is warranted.
4
Test the Bank 2 actuator independently: apply 12V to an electric actuator or apply vacuum to a vacuum actuator. The valve must move smoothly through its full range.
5
If the valve and actuator work but the code persists, check the Bank 2 IMTV position sensor. Compare its output range to Bank 1 — they should produce matching voltage sweeps when moved through the same range.
Estimated Repair Cost
$100 - $600
Parts + labor, varies by vehicle and location
The intake manifold tuning valve (IMTV) on Bank 2 is not performing as expected. This is the Bank 2 counterpart to P065E, indicating the variable-length intake manifold runner valve for the second bank of cylinders is not achieving the expected airflow change. On V-engines, each bank may have its ow...
The most common cause of P065F (Intake Manifold Tuning Valve Performance Bank 2) is: Intake manifold tuning valve stuck due to carbon buildup on the Bank 2 valve or shaft
Typical repair costs for P065F range from $100 to $600, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to drive. Performance impact is minimal — slight loss of torque in a narrow RPM band. If both P065E and P065F are present, the combined effect may be more noticeable. Not an urgent repair but should be addressed for optimal engine efficiency.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P065F to identify the root cause.
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Quick Info
Category
Powertrain
System
Intake Manifold / Air Induction
Difficulty
Type
Generic (SAE)
Recommended Tools
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