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1997 Geo Metro 1.0L MIL Lamp on
po420 cat eff. have 1.27v on scanner back probe pcm had 4.35v at yellow wire (02 sense) if pull terminal out of pcm volts comming from pcm. are there any flashes or what direction need to go? thanks for any help duane
FIX posted 10/22/2005
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Message Closed w/FIX
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| VIN | 2C1MR2260V |
| Engine | 1.0 L / 3 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI / tbi |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
Message Closed w/FIX
Vehicle Data
1997 Geo Metro
| VIN | 2C1MR2260V |
| Engine | 1.0 L / 3 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | FI / tbi |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
4 Replies Received
4 Replies Received
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