smog check failure ..

SouthArk370Z

If you reset the ECM recently, you have to go through several drive cycles (not just number of miles) before the emissions system is ready. Details are in the FSM.

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felix0121

Several months ago, I got a new battery (Nissan-genuine) installed. But I don't know whether the ECU was reset at that time.

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SouthArk370Z

If the battery was disconnected for very long, the ECM was reset. But it only takes a few days (depending on your driving habits) for emissions to read ready. The conditions that have to be met are listed in the FSM.

Your problem may be related to the P0335 (crankshaft position sensor) you saw. If the code has reappeared, get that fixed and see if it fixes the emissions problem.

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Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

felix0121

Yesterday night I intentionally drove 150 miles around on the freeway .. but today it is still not ready.

Thanks for the info.

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SouthArk370Z

It's been a few years since I even glanced at the emissions section of the FSM but, IIRC, it's not so much the number of miles driven as the number of times the system is brought up to normal operating temperature and then cooled off.

If you plan on doing any of your own trouble-shooting or repairs, the FSM is an invaluable resource.

__________________
Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub
Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

nis350

is the warning light on? my impression is that you would fail the calif smog test if there is anything that may impact the emission.

felix0121

no warning light on.

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