Skip the auto shop - Our mechanics make house calls

Q: Car has limited power (limp mode) when gas is pressed.

asked by on

Hello, I have a 2006 Passat 2.0T Automatic. The engine started running rough the other morning and would not accelerate or shift properly . Basically I would step on the gas and it would barely go or just rev up and not go/shift. I drove it in sport mode and was able to shift manually and drive but not over 70MPH. I read all the forums I could find and replaced the following parts. Engine Coils,Spark Plugs,In tank fuel pump,High pressure fuel pump, cam follower. Drove it again and still have the same problem. Currently the EPC light is on,Check engine light and a fault code of P2294 came up on my Autoexray scanner tool. Any ideas? The ironic thing is it was running perfect before I took it to a VW dealer to have a new key programmed and now it has this problem after driving it about 100 miles.

My car has 217500 miles.
My car has an automatic transmission.

Hello. The P2294 code indicates that there is a problem with high-pressure fuel regulator circuit. The driving behavior you outline (won’t rev or achieve speed) may be due to low fuel pressure (high pressure circuit)/inadequate fuel supply, or the engine falling into "Limp Mode". This is hard to tell without additional codes and information.

Either of these would cause poor engine performance and shift quality. I would start with a diagnosis of the high-pressure fuel circuit: fuel pump relay, power to the pump itself, fuel filter, etc. You may still have a fuel supply restriction or a pressure regulator issue. I recommend having a certified professional diagnose the loss of power so that this can be properly addressed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Car has limited power (limp mode) when gas is pressed.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Feeling vibrating/grinding in my gas pedal

It sounds like you may have a wheel bearing that is dried up internally and no longer lubricated. This can cause a vibration to be felt in many parts of the vehicle. The best way to check for this is...

Q: No fuel to pumps - 1991 Mercedes-Benz 420SEL

Since you know how to use the multimeter, you are 2 steps ahead already! Start with power to the fuses (fuel pump), then the fuel pump relay to follow the power path. It's also possible that the ignition switch, and...

Q: Emissions lamp on and won't go out.

Hi there. There could be numerous different things wrong with the emission system to cause the light to stay on. The engine could be running rich or lean causing the O2 sensors to register the condition. The fuel system could...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...