Vehicle: 2007 Prius Model: Touring qmanqman said: ↑ The spacer doesn't fix the problem. It merely masks it. You won't get the code but you still have the problem. it does depending on the condition of your converter. P0420 or P0430 is just a trigger when a certain % is not...
Vehicle: 2010 Prius Model: IV Well, the code definitely means that the car's self-test for the oxygen-storage capacity of the cat was carried out, and completed with a not-passing result. So the only time it doesn't point to the cat would be when some other problem is causing the...