- posted
16 years ago
1999 Maxima,OBD-2 CODE, P0430,CAT EFFICIENCY BELOW THRESHOLD
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- posted
16 years ago
I have a 2000 max with 52K on it that is showing the same code every 3 days or so. When it was new I found that If I added Dry gas (ethenol) The 430 code would come on in a few miles. After I refilled the tank no more code. This went on for years. Now that NJ has gas with 15% ethenol the 430 code has come on every 3 days since NJ introduced this fuel (almost 2 years now). I have concluded that Nisson has to reprogram most of the maximas in this area becuase the O2 sensor readings need to be modified. BMW 5 series has a similar issue in this state as well. I'll get my ECM updated and repost the results. Just find out if ethenol is in the fuel.
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