× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
1996 Geo Metro 1.0L MIL Lamp on
Posted to GM Driveability on 2/13/2002 4 Replies

Greetings, This Geo came to us because of a failed emissions test, Arizona began OBD testing this year on 96 and newer. I found a PO420, low TWC efficiency. Visual inspection shows no obvious damage, to cat, no wire rubbing or burnt to rear sensor. Cannot hear...

4 Replies Received (View Replies)

  Related Documents & Media  1996 Geo Metro

 
Message Closed w/Summary

car Vehicle Data

1996 Geo Metro

VIN 2C1MR2262T
Engine1.0 L / 3 cyl / GAS
Trans5-speed Standard
DeliveryFI / TBI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursNot Applicable
Misc.OBD-2 Compliant

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)
Message Closed w/Summary

car Vehicle Data

1996 Geo Metro

VIN 2C1MR2262T
Engine1.0 L / 3 cyl / GAS
Trans5-speed Standard
DeliveryFI / TBI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursNot Applicable
Misc.OBD-2 Compliant

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)