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Re: Code 44 Lean Exhaust '88 K1500 5.7 TBI
In your remarks about disabling the A.I.R. on the left side (where the sensor lives) I assumed you capped or plugged the lines so that no air would be admitted. This would eliminate the check valves on the system as well.
ADM Mankato? Interesting. I'll be talking to the guys at Marshall this week.
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