P2294 on Audi
Fuel Pressure Regulator 2 Control Circuit
P2294 on Audi vehicles indicates fuel pressure regulator 2 control circuit. Au7o has documented this code across 1 Audi model — most commonly on TTS. This fuel system code means the control circuit for the second fuel pressure regulator is faulty. On direct-injection or some diesel/high-pressure fuel systems, a pressure regulator (control valve) adjusts fuel rail pressure to match engine demand; regulator 2 is the second such valve. The computer commands the regulator and monitors its electrical circuit, setting this code when it sees an open, short, or out-of-range condition. Depending on the system, you may experience hard starting, rough running, reduced power, stalling, or fuel-economy problems. Typical repair costs on Audi range from $30 to $4,000, depending on the specific model and root cause.
Common Causes of P2294
- •Faulty fuel pressure regulator/control valve 2
- •Open, shorted, or corroded regulator wiring
- •Damaged or loose electrical connector
- •Blown fuse or relay feeding the circuit
- •Poor ground or power supply to the regulator
- •Clogged regulator or fuel contamination
- •Faulty engine control module (PCM) — rare
P2294 on Audi by Model
Audi TTS(1 issue)
- HPFP Cam Follower Wear and High-Pressure Fuel Pump Failure (Mk2)2009-2015
The Audi TTS Mk2 (2009-2015) with the EA888 2.0 TFSI uses a high-pressure fuel pump (HPFP) driven directly by a dedicated lobe on the intake camshaft, with a cam follower (tappet) as the intermediary. The cam follower wears through its hardened surface over 30,000-50,000 miles, eventually allowing metal-to-metal contact between the HPFP and camshaft lobe. Once the camshaft lobe is worn, no amount of new cam followers will fix the issue—only a new camshaft ($2,000-$4,000) will restore fuel pump operation. If caught early, the cam follower is a $30 part that takes 30-60 minutes to replace. TTForum.co.uk and Audizine document this as a critical inspection item for all FSI/TFSI engines. The TTS's higher boost pressure increases fuel pump cycling, accelerating follower wear. This issue was largely resolved in Gen 3 EA888 engines (2015+) with a roller follower design.
Looking for P2294 on a different make?
View P2294 across all makes →Frequently Asked Questions
What does P2294 mean on Audi?▼
P2294 stands for "Fuel Pressure Regulator 2 Control Circuit." This fuel system code means the control circuit for the second fuel pressure regulator is faulty. On direct-injection or some diesel/high-pressure fuel systems, a pressure regulator (control valve) adjusts fuel rail pressure to match engine demand; regulator 2 is the second such valve. The computer commands the regulator and monitors its electrical circuit, setting this code when it sees an open, short, or out-of-range condition. Depending on the system, you may experience hard starting, rough running, reduced power, stalling, or fuel-economy problems. On Audi specifically, this code is documented across 1 model.
What causes P2294 on Audi vehicles?▼
Common causes on Audi: Faulty fuel pressure regulator/control valve 2, Open, shorted, or corroded regulator wiring, Damaged or loose electrical connector, Blown fuse or relay feeding the circuit, Poor ground or power supply to the regulator. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P2294 on a Audi?▼
Repair costs on Audi range from $30 to $4,000, depending on the specific model and root cause.
Which Audi models have P2294 documented?▼
Au7o has documented P2294 on 1 Audi model: TTS.