|
|
|
Content .. 1789 1790 1791 1792 ..
Possible Effects Possible effects are black smoke, EGR system malfunction and/or lack of power. Test Procedures 1. Check air induction and vacuum hoses for leaks. Check vacuum hoses for proper routing. See Fig. 31 . If vacuum hoses are routed properly and no air or vacuum leaks are found, go to next step. If vacuum hoses 2. Check EGR valve for proper operation and free movement using manual vacuum pump. If EGR operation is okay, go to next step. If EGR operation is not okay, replace EGR valve. After repairs, erase DTC 3. Check EGR Vacuum Regulator Solenoid Valve (N18). See DTC P401/16785, P402/16786, P1402/17810 & P1441/17849 . connector for 10 seconds, connect ECM harness connector and retest system.
2003 Volkswagen New Beetle GLS 2002-2004 ENGINE PERFORMANCE Self-Diagnostics - 1.9L Turbo Diesel - Beetle, Golf & Jetta (Engine Code ALH)
Helpmelearn Repair Manuals
Wednesday, December 14, 2005 8:48:23 AM Page 76 © 2004 Mitchell Repair Information Company, LLC. |