 
				
	| 1999 Ford Explorer XL 4.0L MIL Lamp on hey guys, the fuel trims are way off on this vehicle. the baro is reading good at 157hz. no vacuum leaks tried carb cleaner and smoke tester. also i was looking at the fuel trims while i was testing and they did not [...] term fuel trim is at 21 to [...] term ... 
                        
                            FIX posted 2/9/2007
                               
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 | Message Closed w/FIX 
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| VIN | 1FMZU32XUB | 
| Engine | 4.0 L / 6 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | FI / SEFI | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Intermittently | 
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) | 
| P0174 | Fuel System Too Lean (Bank 2) | 
Message Closed w/FIX
            
             Vehicle Data
 Vehicle Data
                1999 Ford Explorer XL
| VIN | 1FMZU32XUB | 
| Engine | 4.0 L / 6 cyl / GAS | 
| Trans | 4-speed Automatic (Electronic) | 
| Delivery | FI / SEFI | 
| Emissions | OBD-II Compliant | 
| Symptoms | MIL Lamp On | 
| Occurs | Intermittently | 
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) | 
| P0174 | Fuel System Too Lean (Bank 2) | 
 24 Replies Received
24 Replies Received
 24 Replies Received
          24 Replies Received
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