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> Help! Failed smog test, CO is too high
jnp914
post Jul 16 2004, 04:33 PM
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I recently moved to Las Vegas. A smog test is required, even for classic car plates. The test consisted of two minutes at 2500 rpm, idle, 1000 rpm, idle, 2500 rpm, idle.

The car passed the 2500 rpm CO test of 2.50 with a 2.16. However, it failed the idle test with a 3.44. The tech stated it was idling too rich.

The car is a '76 912E with the 2.0. I installed a new K&N filter to maximize air flow. What else can I do to lower the idle CO reading?

There is a provision for a waiver, after $450 in repairs at an approved shop. I would like to put the money elsewhere.

Help?
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jnp914
post Jul 16 2004, 05:08 PM
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What happened to the format? That is not how I typed it.

Maybe this will look better:

HC ppm:
2500 limit is 500, reading is 96
idle limit is 500, reading is 211

CO 2500 limit is 2.50, reading is 2.16
idle limit is 2.50, reading is 3.44

CO2 2500 reading is 15.70, idle is 12.30

02 2500 reading is 0.2, idle is 6.3

Oh yeah, the gas here in Las Vegas is oxygenated. Could the gas in the tank from Missouri be causing this?
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