DTC C1239 Jeep

Catalyst (2 1) Efficiency Below Normal

Catalyst (2 1) Efficiency Below Normal

Description

Exhaust leaksBase engine problemsCatalytic converter damaged or has failedFront O2 older (aged) than the rear O2 (O2 is lazy)

Video Guide

Duration: PT3M45S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: C1239
  • Brand: Jeep
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