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2002 Ford Focus ZX5 2.0L Poor Idle Quality, MIL Lamp on
Posted to Ford Driveability on 4/20/2012 19 Replies

Hello and thanks for your help. This car has rough idle all the time. The engine smooths out when you get it off idle. It appears to be running lean as when propane is added into the air cleaner the idle speeds up and smooths out. However the fuel pressure and...

19 Replies Received (View Replies)

  Related Documents & Media  2002 Ford Focus ZX5

 
Message Closed w/Summary

car Vehicle Data

2002 Ford Focus ZX5

VIN 3FAFP37332
Engine2.0 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursIdle

Trouble Codes

P0136Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction
P1131Electric Vacuum Pump System Related PGM-FI Sensor Signal Malfunction
Message Closed w/Summary

car Vehicle Data

2002 Ford Focus ZX5

VIN 3FAFP37332
Engine2.0 L / 4 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, MIL Lamp On
OccursIdle

Trouble Codes

P0136Heated Oxygen Sensor (Bank 1 Sensor 2) Heater Circuit Malfunction
P1131Electric Vacuum Pump System Related PGM-FI Sensor Signal Malfunction