
1997 Lexus ES300 3.0L MIL Lamp on
Car came in with code 420. Replace converter with Bosal aftermarket converter. Car was fine for 6 months, about 3,000 miles. Light came back on, same code. Replace both 02 [...] was off for 1 week. Light back on again same code (420). Car runs fine. fuel press...
FIX posted 5/25/2004
![]()
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle (View Replies)6 Replies Received(Hide Replies)6 Replies Received
|
Message Closed w/FIX
|
VIN | JT8BF22G9V |
Engine | 3.0 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Not Applicable |
Trouble Codes
420 | catalyst system efficiency below threshold |
Message Closed w/FIX
Vehicle Data
1997 Lexus ES300
VIN | JT8BF22G9V |
Engine | 3.0 L / 6 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Not Applicable |
Trouble Codes
420 | catalyst system efficiency below threshold |