P2094 Buick Code - Exhaust Camshaft Position Actuator Solenoid Valve Control Circuit Low Voltage Bank 2
Quick Answer
The camshaft position actuator system enables the Engine Control Module (ECM) to change the timing of the camshafts while the engine is operating. Common causes include Faulty Exhaust Camshaft Position Actuator Solenoid Valve Bank 2, Exhaust Camshaft Position Actuator Solenoid Valve Bank 2 harness is open or shorted, Exhaust Camshaft Position Actuator Solenoid Valve Bank 2 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P2094 Buick indicates Exhaust Camshaft Position Actuator Solenoid Valve Control Circuit Low Voltage Bank 2.
- Common causes
- Common causes include Faulty Exhaust Camshaft Position Actuator Solenoid Valve Bank 2, Exhaust Camshaft Position Actuator Solenoid Valve Bank 2 harness is open or shorted, Exhaust Camshaft Position Actuator Solenoid Valve Bank 2 circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P2094 Buick Description
Ignition voltage is supplied directly to the Camshaft Position Actuator Solenoid Valve. The ECM controls the solenoid valve by grounding the control circuit with a solid-state device called a driver. The driver is equipped with a feedback circuit that is pulled-up to a voltage. The ECM can determine if the control circuit is open, shorted to ground, or shorted to a voltage by monitoring the feedback voltage.
The Diagnostic Trouble Code (DTC) will set when the ECM detects a short to ground in the CMP actuator solenoid circuits for greater than 1 second or a cumulative of 5 seconds, when the solenoid is commanded OFF.
What are the Possible Causes of the DTC P2094 Buick?
- Faulty Exhaust Camshaft Position Actuator Solenoid Valve Bank 2
- Exhaust Camshaft Position Actuator Solenoid Valve Bank 2 harness is open or shorted
- Exhaust Camshaft Position Actuator Solenoid Valve Bank 2 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P2094 Buick?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2094 Buick code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P2094 Buick Code
What does the OBDII code P2094 mean for a Buick?
P2094 indicates a low voltage issue in the control circuit for the exhaust camshaft position actuator solenoid valve on Bank 2.
What are common symptoms of P2094 in a Buick?
Symptoms may include poor engine performance, rough idling, stalling, reduced fuel efficiency, and a Check Engine Light.
What causes the P2094 code to appear on a Buick?
Common causes include a faulty exhaust camshaft actuator solenoid, damaged wiring or connectors, low oil pressure, or contaminated oil.
Can low oil pressure trigger the P2094 code?
Yes, insufficient oil pressure can prevent the camshaft actuator solenoid from functioning correctly, leading to the P2094 code.
How can I diagnose the P2094 code on a Buick?
Inspect the wiring and connectors for damage, check the oil level and condition, and test the exhaust camshaft actuator solenoid for proper operation.
Is it safe to drive a Buick with the P2094 code?
Driving with this code for extended periods may cause engine damage or reduced performance, so it’s best to address it promptly.
How do I fix the P2094 code in a Buick?
Repairs may involve replacing the exhaust camshaft actuator solenoid, repairing damaged wiring, or performing an oil change to address contamination.
Does the P2094 code affect only Bank 2 on a Buick?
Yes, this code specifically relates to Bank 2, which is the cylinder head opposite Bank 1 in a V-shaped engine.
Can a dirty or clogged oil filter cause P2094?
Yes, a dirty oil filter can restrict oil flow, leading to low oil pressure and triggering the P2094 code.
How much does it cost to repair the P2094 code on a Buick?
Repair costs vary but may range from $100 to $300 for solenoid replacement, plus additional costs for diagnostics or oil-related repairs.
Discuss the causes and fixes for P2094 Buick OBDII Code
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