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1995 Ford Thunderbird LX 4.6L MIL Lamp on
Posted to Ford Driveability on 6/21/2004 7 Replies

This car was running poorly with P1131 and P0171 codes. LTFT indicated lean condition. Cleaned debris from MAF and runs fine now. After two days MIL back on.... same codes. Scoped the bank1 sensor and see no difference between it and bank 2 sensor. Smoke teste...

7 Replies Received (View Replies)

  Related Documents & Media  1995 Ford Thunderbird LX

 
Message Closed w/FIX

car Vehicle Data

1995 Ford Thunderbird LX

VIN 1FALP62WXS
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P1131Electric Vacuum Pump System Related PGM-FI Sensor Signal Malfunction
Message Closed w/FIX

car Vehicle Data

1995 Ford Thunderbird LX

VIN 1FALP62WXS
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P1131Electric Vacuum Pump System Related PGM-FI Sensor Signal Malfunction