in my '88 22r-engine, I failed a (Calif) smog with a reading of 2.7 for "CO", and the limit is just 1.0. WHAT could be causing such a Massively high level?

10

Asked by Jan 31, 2017 at 12:20 AM about the 1988 Toyota Pickup 2 Dr STD Extended Cab LB

Question type: Maintenance & Repair

4 Answers

116,025

Carbon monoxide is produced when you burn fuel without enough air. Your engine may be running rich. Are the hydrocarbons also high?

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116,025

Here is a read for you ----- http://www.smogtips.com/failed-high- carbon-monoxide-CO.cfm

10

nope, the HC level was fine.....?

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6,695

monoxide, you say...one might suspect a bad catalytic converter...possibly plugged, check the amount of exhaust...might be stoppin the show~

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