94 Wagon Failed Cal. Smog!
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Junior Member
Joined: Sep 2014
Posts: 51
94 Wagon Failed Cal. Smog!
Hey Forum, my 94 F22B Wagon failed smog. So I changed the oil, plugs, air filter, and added seafoam to gas and crankcase. Any more advice before I pay the smog man again? Here's the 5-gas readout:
Super Moderator : And A Texan
Joined: Feb 2007
Posts: 9,652
From: Katy, TX
Excessive CO is caused by lack of oxygen (air) to burn fuel completely. Check air filter and air intake for possible blockages. If good, then a new O2 sensor should be considered.
good luck
good luck
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