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1994 Mazda B4000 SE 4.0L MIL Lamp on
Trucks mil comes on and runs poorly on a grade. I retrieved code 186 from pcm for pulse width higher than expected or Maf too low. I tested maf with my Vantage and all is ok. I did test G7 for visual inspection of maf. Seems ok. No oil contamination,no exc...
FIX posted 1/7/1999
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| VIN | 4F4DR17X8R |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / SFI |
| Emissions | Not OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always, Under Load |
Trouble Codes
| 186 | Pulse width higher than expected or Maf sensor lower than expected |
| 90 | Recieved this code after performing injector balance |
Message Closed w/FIX
Vehicle Data
1994 Mazda B4000 SE
| VIN | 4F4DR17X8R |
| Engine | 4.0 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / SFI |
| Emissions | Not OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always, Under Load |
Trouble Codes
| 186 | Pulse width higher than expected or Maf sensor lower than expected |
| 90 | Recieved this code after performing injector balance |
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