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1999 Mazda Protege ES 1.8L MIL Lamp on, Lean only at idle
This car sets code P0171 when left idling for a while. Seemed to me to be a vacuum leak problem, but I have not found any leaks anywhere. O2 Sensors work fine, but sensor 1 pins at .02v at idle, Short term trim clims to +24% and long term trim follows at +18% ...
FIX posted 4/8/2003
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Message Closed w/FIX
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Related Documents & Media | VIN | JM1BJ2213X |
| Engine | 1.8 L / 4 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI / Multi Port FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp on, Lean Only at Idle |
| Misc. | Code P0171 |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
Message Closed w/FIX
Vehicle Data
1999 Mazda Protege ES
| VIN | JM1BJ2213X |
| Engine | 1.8 L / 4 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI / Multi Port FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp on, Lean Only at Idle |
| Misc. | Code P0171 |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
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