1995 Ford Thunderbird LX 4.6L MIL Lamp on
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...
FIX posted 6/29/2004
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Message Closed w/FIX
Vehicle Data1995 Ford Thunderbird LX
Trouble Codes
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Message Closed w/FIX
Vehicle Data
1995 Ford Thunderbird LX
VIN | 1FALP62WXS |
Engine | 4.6 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI / sefi |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Trouble Codes
P0171 | Fuel System Too Lean (Bank 1) |
P1131 | Electric Vacuum Pump System Related PGM-FI Sensor Signal Malfunction |