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If you remove the smog pump from a 5.7 liter 1987 suburban engine, do you have to change the computer chip?

Aug 03, 2009 by jrejhkids | Posted in Maintenance & Repairs


Removing the air injection will alter the exhaust mixture that the oxygen sensor "sees" and could cause the computer to turn on the "check engine" light. It's unlikely you could find a different computer chip (or modify the existing

Steve@Motowest | Aug 03, 2009

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