2002 Pathfinder DTC P04030 Code Followup

Oct 26, 2008 2 Replies
R
2 months ago I replaced a leaking front tube assembly CAT on my 02 Pathfinder (which couldn't be patched w/ the Nissan kit). After replacement and resetting the emission control unit, the P0430 code did not return. However now 2 months later the P0430 code has now returned and in shorter mileage intervals. It remained off after the initial CAT install for 1200 miles, then after reset it remained off for another 500 miles, but now it remains off for only about 100 miles. Other forums have suggested that I need to have the ECU programming updated at a Nissan dealer to make it more tolerant of O2 deviations from spec. Does anyone have any other suggestions before I take the machine over to a dealer?

Thanks in advance. RJ


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E

My '02 periodically gets into a mood where it starts throwing codes like that. Before you spend any money on it, reseat all the connectors & blow out all the vacuum lines & see if that doesn't make it behave.

After years of cursing it, I finally found debris in a vacuum line. Once purged, the light came on one more time, went off by itself after a couple of days and we haven't seen it again for 4 months and counting.

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R

"e.meyer" wrote in news: snipped-for-privacy@f77g2000hsf.googlegroups.com:

Thanks for the advice. Since I made my post it's gone 550 miles w/o throwing the code so maybe some loose debris is what's setting it off.

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