DIAG – CHECK ENGINE LIGHT, VSC, TRACTION ALL FLASHING ON DASH BUT DRIVES OK. CUSTOMER TOOK IT TO ANOTHER SHOP AND WAS TOLD IT NEEDS AN AIR INJECTION PUMP/VALVE, REPLACED IT AND LIGHTS STILL FLASH AND THEN WAS TOLD MODULE WAS NEEDED BUT WANTS US TO CHECK.
TRACE CIRCUITS OF SECONDARY AIR INJECTION VALVE SYSTEM. INCLUDES R&I INTAKE MANIFOLD
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