Quote:
Originally Posted by blue62
Codes like the ones you are getting are due to issues that are not immediately harmful to the catalytic converters. The OBDII system has to see same code logging event back to back over two driving cycles. The first time the system sees the event that would trigger your P1128 or P1130 code it logs the event and puts it in its memory as a pending code. if the same event happens on the next drive event or cycle it moves the code from pending code to a hard code and triggers your check engine light.
This is why you can erase some codes and they take some time to reappear.
If you were having an issue that was immediately harmful to the catalytic converter the OBDII system would trigger your check engine light on the first event.
A misfire is an example of such an issue.
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Thanks. It looks like the problem is much more easy now. The leak is not very obvious but actually intriguing the fault codes. Do you know how much it takes for a independent shop to fix it?