What Does P0663 Mean?
The PCM has detected a malfunction in the intake manifold tuning valve (IMTV) control circuit for bank 2, indicating an open circuit condition. On V-configuration engines, bank 2 has its own IMTV to optimize runner length independently. When this circuit is open, the bank 2 intake runners cannot adjust, leading to uneven torque characteristics between banks. The driver may notice uneven power delivery, vibration at certain RPM ranges, or reduced fuel economy.
Common Causes
35%
Open or damaged wiring in bank 2 IMTV control circuit
30%
Failed bank 2 IMTV solenoid or actuator
20%
Corroded or disconnected electrical connector
10%
IMTV butterfly valve mechanically stuck or broken
5%
PCM driver circuit failure for bank 2 IMTV
Diagnostic Steps
1
Compare freeze frame data between banks — if P0661/P0662 are not set for bank 1, the issue is isolated to bank 2 wiring or solenoid.
2
Locate the bank 2 IMTV solenoid and disconnect it. Measure coil resistance (typical 20-40 ohms). Compare to the bank 1 solenoid reading for a known-good reference.
3
Check for voltage at the IMTV solenoid connector power pin with key on. If no voltage, trace the feed wire back to the fuse and relay for open circuits.
4
Inspect the wiring harness routing for bank 2 — on many V-engines this harness routes near exhaust components and is prone to heat damage. Look for melted insulation or brittle wires.
5
Use scan tool bidirectional control to toggle the bank 2 IMTV solenoid while monitoring voltage at the PCM connector pin. Verify the PCM driver toggles properly.
Estimated Repair Cost
$75 - $500
Parts + labor, varies by vehicle and location
The PCM has detected a malfunction in the intake manifold tuning valve (IMTV) control circuit for bank 2, indicating an open circuit condition. On V-configuration engines, bank 2 has its own IMTV to optimize runner length independently. When this circuit is open, the bank 2 intake runners cannot adj...
The most common cause of P0663 (Intake Manifold Tuning Valve Control Circuit/Open Bank 2) is: Open or damaged wiring in bank 2 IMTV control circuit
Typical repair costs for P0663 range from $75 to $500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to continue driving. The bank 2 intake runners will remain in a fixed position, causing slightly reduced performance and efficiency. On some vehicles, extended driving with uneven bank tuning can cause unequal wear patterns in the intake. Schedule repair within a few weeks.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0663 to identify the root cause.
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Quick Info
Category
Powertrain
System
Intake / Air Management
Difficulty
Type
Generic (SAE)
Recommended Tools
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