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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) 13A-635 STEP 2. Check for leaks in the evaporative emission purge solenoid and connect a hand vacuum pump to the nipple of (2) Use the hand vacuum pump to confirm that the evaporative emission purge solenoid holds vacuum. (3) Disconnect the hand vacuum pump and connect hose B to the evaporative emission purge solenoid. Q: Does the evaporative emission purge solenoid hold vacuum? to Step 18. STEP 3. Check for leaks in the evaporative emission Perform a leakage test with a hand vacuum pump on each Q: Does the hoses hold vacuum? YES : Go to Step 4. AC203994 AB HOSE A HOSE B EVAPORATIVE EMISSION PURGE SOLENOID AC203996 AB EVAPORATIVE EMISSION PURGE SOLENOID AC203994 AB HOSE A HOSE B EVAPORATIVE EMISSION PURGE SOLENOID |