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1995 Geo Prizm LSi 1.8L MIL Lamp on
both o2 sensors are reading voltage. tested at diagnois connector under hood. genrally both stay around .45 volts at idle. they will drop down to .100 at times and go up as high as .55 volts but these are very gradual transitions. like the computer is not cont...
FIX posted 11/16/2009
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Message Closed w/FIX
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Related Documents & Media | VIN | 1Y1SK5289S |
| Engine | 1.8 L / 4 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / FI |
| Emissions | Not OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always, Idle |
| Misc. | Check Engine Light Is On |
Trouble Codes
| 21 | o2 sensor or circuit problem |
| 27 | sub o2 sensor or circuit problem |
Message Closed w/FIX
Vehicle Data
1995 Geo Prizm LSi
| VIN | 1Y1SK5289S |
| Engine | 1.8 L / 4 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / FI |
| Emissions | Not OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always, Idle |
| Misc. | Check Engine Light Is On |
Trouble Codes
| 21 | o2 sensor or circuit problem |
| 27 | sub o2 sensor or circuit problem |
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