Eclipse L4-1997cc 2.0L DOHC Turbo 16 Valve (1996)
EGR Valve: Testing and Inspection
EGR Port Vacuum Check
1. Disconnect the vacuum hose (white stripe) from the throttle body EGR vacuum nipple. Connect a hand vacuum pump to the nipple.
2. Start the engine and gradually raise the speed. The vacuum reading on the pump should remain constant.
NOTE: If no vacuum is generated, the throttle body purge port may be clogged.
