× 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
2000 Honda Prelude 2.2L MIL Lamp on
Posted to Asian Driveability on 2/3/2010 5 Replies

post cat o2 monitor voltage stays low, quick testing it will go rich then return lean and stay below 10 millivolts. does not mimmic pre o2 at all. this car only sets a p0420 not a lean or low voltage code.

could the new cat be too efficient? lol

haven't had...

5 Replies Received (View Replies)

  Related Documents & Media  2000 Honda Prelude

 
Message Closed w/FIX

car Vehicle Data

2000 Honda Prelude

VIN JHMBB6141Y
Engine2.2 L / 4 cyl / GAS
Trans5-speed Standard
DeliveryFI / VTEC
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

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

car Vehicle Data

2000 Honda Prelude

VIN JHMBB6141Y
Engine2.2 L / 4 cyl / GAS
Trans5-speed Standard
DeliveryFI / VTEC
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0420Catalyst Efficiency Below Threshold (Bank 1)