Powertrain, generic (extended)

P2413 EGR System Performance

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

P2413 is a broad EGR performance code, and makers fill it in different ways. GM's 2011 6.6 L LGH Duramax uses it for insufficient flow: the air-mass controller deviation must pass a map value of 1.8 to 2.4 g per revolution for 10 s under steady fuelling, rated Type B. GM's 2005 3.5 L L66 petrol engine compares valve lift instead: under 0.15 mm while more than 1 mm is commanded, below 4000 rpm, sets it after two drive cycles. VW's 2014 2.0 TDI (CJAA) links it to fuel mean-value adaptation, reporting four or more learning points at the ±6 mg per stroke limit. Typical results are higher NOx, a failed emissions test and, on diesels, reduced power. Narrower flow faults are P0401 and P0402, slow response P240F.

Likely causes

Soot or carbon restricting the EGR valve or passages
EGR valve not reaching commanded lift (actuator or position sensor)
Partly blocked EGR cooler
Air-mass or pressure sensor error distorting the flow calculation

Symptoms

  • Check engine light
  • Reduced power or derate on diesels
  • Knocking or pinging under load on petrol engines
  • Failed emissions inspection

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€100–1,500
Time1–5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

egr valveegr cooleregr diff pressure sensor

Related codes

P0401P0402P0404P0400P240F

References: gsi.ext.gm.com, gsi.ext.gm.com, static.nhtsa.gov.