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Subject:1991 Vanagon 2.1L auto: failed DE emission test: CO (high)
From:Karl Ploessl <karl.ploessl@GMAIL.COM>
Date:Wed, 31 May 2023 17:41:50 -0400

here are the numbers:

low high

HC (ppm)

readings 145 88

limit 220 220

result PASS PASS

CO (%)

readings 3.39 2.48

limit 1.20 1.20

result FAIL FAIL

CO (%) + CO2 (%)

readings7.49 13.24

RPM reading

readings 935 2580

limit 500 2200

result PASS PASS

The alignments of the table is somewhat screwed up but it failed CO
emission at low and at high RPMs (935 and 2580). What would be the reason?

Karl '81 Westy "Jenny"

'91 Westy "Jenny 2" Wilmington, DE

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