2001 Chevy Silverado OBD2= EGR

Tiny
FIRENUCK
  • MEMBER
  • 2001 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 40,000 MILES
I have a 2001 chevy Silverado HD and have had my "service engine soon" light pop on and off for the last month. So, when I went in to get my oil changed I asked if they could run a diagnostics for me. Unfortunately, I didn't write the information down but I know it had to do with the "EGR sensory out of range" So my question is can anyone tell me that code and do I just need to put in a new EGR sensor? Thank you!
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Saturday, May 2nd, 2009 AT 3:44 PM

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Tiny
OBXAUTOMEDIC
  • EXPERT
Hello,

I suggest you go by your local parts store and have them pull codes for you. There are a few different codes for the EGR System.

P0400 Exhaust Gas Recirculation Flow
P0401 Exhaust Gas Recirculation Flow Insufficient Detected
P0402 Exhaust Gas Recirculation Flow Excessive Detected
P0403 Exhaust Gas Recirculation Control Circuit
P0404 Exhaust Gas Recirculation Control Circuit Range/Performance
P0405 Exhaust Gas Recirculation Sensor "A" Circuit Low
P0406 Exhaust Gas Recirculation Sensor "A" Circuit High
P0407 Exhaust Gas Recirculation Sensor "B" Circuit Low
P0408 Exhaust Gas Recirculation Sensor "B" Circuit High
P0409 Exhaust Gas Recirculation Sensor "A" Circuit

P0486 Exhaust Gas Recirculation Sensor "B" Circuit
P0487 Exhaust Gas Recirculation Throttle Position Control Circuit
P0488 Exhaust Gas Recirculation Throttle Position Control Range/Performance
P0489 Exhaust Gas Recirculation Control Circuit Low
P0490 Exhaust Gas Recirculation Control Circuit High

P2141 Exhaust Gas Recirculation Throttle Control Circuit Low
P2142 Exhaust Gas Recirculation Throttle Control Circuit High
P2143 Exhaust Gas Recirculation Vent Control Circuit/Open
P2144 Exhaust Gas Recirculation Vent Control Circuit Low
P2145 Exhaust Gas Recirculation Vent Control Circuit High

And that just a few.

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Saturday, May 2nd, 2009 AT 4:08 PM

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