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1994 Ford Ranger STX 4.0L Poor Idle Quality, Stall, Poor Fuel Economy, MIL Lamp on
C/s vehicle is stalling at idle, has power loss. We test drove to duplicate and found the above codes including 181 & 189, lean bank 1 & bank 2. Replaced maf, better but still stalls when in closed loop. Runs ok, in open loop. Replaced both o2 sensors. -- once...
FIX posted 2/15/2016
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Message Closed w/FIX
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19 Replies Received
19 Replies Received
Related Documents & Media | VIN | 1FTCR14X8R |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | Fuel Injection |
| Emissions | us |
| Symptoms | Poor Idle Quality, Stall, Poor Fuel Economy, MIL Lamp On |
| Occurs | In Closed Loop |
Trouble Codes
| 157 | Maf below voltage |
| 171 | No switch 02 bank 1 |
| 172 | Lean bank 1 |
| 175 | Bank 2 unable to switch |
| 176 | Lean bank 2 |
Message Closed w/FIX
Vehicle Data
1994 Ford Ranger STX
| VIN | 1FTCR14X8R |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | Fuel Injection |
| Emissions | us |
| Symptoms | Poor Idle Quality, Stall, Poor Fuel Economy, MIL Lamp On |
| Occurs | In Closed Loop |
Trouble Codes
| 157 | Maf below voltage |
| 171 | No switch 02 bank 1 |
| 172 | Lean bank 1 |
| 175 | Bank 2 unable to switch |
| 176 | Lean bank 2 |
Video