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DTC P0216/16600 DTC P1251/17659 DTC P1252/17660 Possible Effects Possible effects are engine knocks during idle and/or poor engine performance. Test Procedures 1. Let engine idle. Activate Cold Start Injector (N108) using Output Diagnostic Test Mode. See OUTPUT DIAGNOSTIC TEST MODE . Activation should make a change in combustion that can be heard. If no 2. Check injection timing control range. See DTC P1248/17656: COLD START INJECTOR - CONTROL DIFFERENCE. . Repair as necessary. After repairs, erase DTC memory. See CLEARING 3. Erase DTC memory. See CLEARING DIAGNOSTIC TROUBLE CODES (FUNCTION 05) under SELF DIAGNOSTIC SYSTEM. Perform ECM relearn procedure. See TEST DRIVE RELEARN DTC P0225/16609, DTC P0226/16610, DTC P0228/16612, DTC P1631/18039, DTC P1632/18040, DTC NOTE: For connector terminal wire colors, see appropriate WIRING DIAGRAM under NOTE: Before replacing any component, ensure all connectors at component and ECM CAUTION: Conditions that cause DTC P1251/17659 and P1252/17660 to set may cause fuel injection timing to be advanced continuously, this causes
2003 Volkswagen New Beetle GLS 2002-2004 ENGINE PERFORMANCE Self-Diagnostics - 1.9L Turbo Diesel - Beetle, Golf & Jetta (Engine Code ALH)
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