97 Accord HC emissions reaching CA state limit - any tricks?

And remember, don't smog test your car with a cold engine. Drive it for at least 30 minutes before having it tested.

- Peter

Converter may be on

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" snipped-for-privacy@yahoo.com" said in ca.driving:

Then your only choice is to unload that POS now while it can still pass smog.

If the car is generally well tuned (timing belt, plugs, valve clearance, gaskets, no vacuum leak), then oxygen sensors should help. I fixed a P0420 catalytic converter efficiency below threshold problem with high HC output with two Bosch planar oxygen sensors (~$75 universal type).

Of course, those who know, Honda recommends a new converter. But with these P0420 showing up so early on some cars, I figured the cheap Denso sensors were just junk and would stay away from them.

NTK sensors (a part of the NGK/NTK company)should also be fine. IMO NGK makes excellent Iridium spark plugs.

The valve clearances usually become tight on some Hondas, so "adjust only when noisy" really don't apply. You might want to check these too if havent done so. Early exhaust valve openings might not help either.

I live in California and just got my 97 Accord smogged (230K miles).

Converter may be on

| Here in Canada

I saw on tv : in 1-98 Canada had record cold, here in msia we had record heat ( El Nino, air tmprtre reached 37°C ) during

1-98 to 3-98. These 2 unusual weathers look related.