Q: Check engine light comes and goes with the EGR valve code on a 2.5 Subaru

asked by on

2.5 Subaru engine. EGR valve code. Check engine light comes and goes. Does it depend on temperature or does it randomly happen?

EGR systems for that vehicle are very complicated and are all ran by a computer. The only way you can figure out what’s wrong is to hire a mechanic. Technicians like ones from YourMechanic have dealer-level scan tools and can scan the system to see what the code is. With proper scan tools they are able to run a bi-directional test of the EGR system to see what has broken down.

Several things need to be checked if they are going bad; the EGR valve, computer control, and wiring. They are pretty complicated systems, the only thing you can do yourself, if you want to try, is that you can take the EGR valve off and clean it with throttle position cleaner. Sometimes the spindle valves get clogged up with carbon. If that doesn’t fix it, it’s time for a mechanic to diagnose the Check Engine Light for you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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. Check engine light comes and goes with the EGR valve code on a 2.5 Subaru

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: I received error code P0130. What do I do next?

For this vehicle with 4.6 or 5.4 liter engine, the code P0130 could be due to a problem with the computer program calibration. There is a technical service bulletin (TSB) number 13-3-5 dated March 6th 2013. The TSB pertains to...

Q: How do I view Gauge mode?

In the Uplevel Message Center, there is a feature called Gauge mode. Gauge mode helpfully shows some of your vehicle's stats as a graphic. To view the options in Gauge mode. Use the Up or Down arrow keys on...

Q: Drops in power and dies at stops

Hello there, loss of power and dying when stopped are common issues with your 2006 Chevrolet Impala. The most common causes are are the fuel pump, clogged EGR, vacuum leak, fuel filter, oxygen sensor, wiring harness fault, or an exhaust...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...