P2094 code meaning
"B" Camshaft Position Actuator Control Circuit Low (Bank 2)
Powertrain system Generic code P20xx codes Check engine light
What P2094 means
P2094 belongs to the fourth phaser valve of a twin-phaser V engine: actuator B, the exhaust camshaft, on bank 2. It is therefore absent on single-cam pushrod V8s and on inline engines. On GM's 3.6 L LFX the high-side output is checked for a ground short while on and treated as Type A after 20 out of 25 samples of 250 ms (19OBDG03B). The low-side GM controller of table 23OBDG07 detects the short to ground while off and reacts within 0.2 s; the lamp follows on the second trip. Ford's 2014 gasoline list carries P2094 for the continuous monitor only. CARB requires output components of the valve timing system to be checked for circuit faults. An open circuit on this valve is P0023, wrong exhaust timing on bank 2 P0024 or P0025.
P2094 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium, DIY possible
- Typical labor0.4 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2094
- Engine warning lamp on
- Slight loss of efficiency, higher part-load emissions
Common causes of P2094
- Most likelyBank 2 exhaust valve wire shorted to ground
- PossibleShorted coil in the bank 2 exhaust oil control valve
- Less likelyInsulation damaged by heat near the exhaust manifold
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Oil control valve exhaust bank2Oil control valve wiringEngine control module
What each part of P2094 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 0 | Area: fuel and air metering and auxiliary emission controls. |
| 94 | The exact fault in that area. |
What to do next
- Note P2094 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2094
What does P2094 mean?
P2094 means ""B" Camshaft Position Actuator Control Circuit Low (Bank 2)". P2094 belongs to the fourth phaser valve of a twin-phaser V engine: actuator B, the exhaust camshaft, on bank 2. It is a generic code, so it means the same on every make.
Is it safe to drive with P2094?
Drive gently and only to a workshop. With P2094 the car can go into limp mode (reduced power) to protect itself.
Will P2094 fail an emissions test?
Yes, it can. P2094 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2094 to fix?
Difficulty: medium. A typical repair takes 0.4 to 2.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P2094 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.