Your Vehicle: 2001 Ford Escort ZX2 L4-2.0L DOHC VIN 3
 
Vehicle » Powertrain Management » Computers and Control Systems » Testing and Inspection » Diagnostic Trouble Code Tests and Associated Procedures » SECTION 5: Pinpoint Tests » HF: Catalyst Efficiency Monitor and Exhaust Systems - Introduction  
 
 
  HF: Catalyst Efficiency Monitor and Exhaust Systems - Introduction  
 

HF: Catalyst Efficiency Monitor and Exhaust Systems Introduction

HF: Pinpoint Tests See: HF: Catalyst Efficiency Monitor and Exhaust Systems - Pinpoint Test

Note

This Pinpoint Test is intended to diagnose the following:

  • Exhaust system pipes (front and rear)
  • Exhaust system muffler and tailpipe assembly
  • Catalytic converter
  • Exhaust manifold
  • Harness circuits: Downstream heated oxygen sensors (HO2S)