Posts Tagged L98

C4 (84-96)

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… Read more »