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1984-1996 Corvette EGR Diagnosis . By Chris Petris. Exhaust Gas Recirculation (EGR) came about in 1975 when catalytic converters were introduced. The inert exhaust gas was used to quell the increased heat in the engine’s cylinders from the lean fuel mixtures required to keep the catalytic converters from melting down. EGR systems also helped eliminate spark knock from the increased combustion chamber temperatures.... read more
Engine Dies After Starting, Won't Idle; Needs Intake Cleaning. My '85 with 230F had a similar problem. It would die after starting and put into gear when cold and ...EngineTune and Performance; Symptoms: FAQHomeVolvo MaintenanceFAQ for 7xx/9xx/90 Cars &nbs... read more
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