For Shop Owners
AutoCodes
OBDII Code List
P0420 CHEVROLET

P0420 CHEVROLET - Catalyst System Low Efficiency Bank 1

Repair Importance Level: 2/3
Repair Difficulty Level: 2/3 What does this mean?

Possible causes

  • Three way catalyst converter Bank 1
  • Exhaust tube
  • Intake air leaks
  • Fuel injectors may be faulty
  • Fuel injector leaks
  • Spark plugs may be faulty
  • Improper ignition timing
  • Powertrain Control Module (PCM)
What does this mean?
OBDII Code P0420 Chevrolet - Catalyst System Low Efficiency Bank 1 - kvjournal.ru

Need more help?

Do you need more help with the P0420 Chevrolet code? Ask a question to our users or find an automotive repair shop near you to help fix the OBDII code
Check this articles: 97 toyota camery | p0171 honda | 2008 mazda 6 air filter | po140 engine code | evap code p0440
Posted and Edit by kvjournal.ru 08-15-2016