Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI199590 BASE, 2.8 A, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - TESTS W/CODESSELF-DIAGNOSTIC TESTSENGINE BASIC SETTINGDISPLAY GROUP 11, FIELD 3, IGNITION TIMING POINT ACCESS TO IAC CONTROL
1995 Audi 90 Base, 2.8 A, Automatic
Display Group 11, Field 3, Ignition Timing Point Access To IAC Control
1995 Audi 90 Base, 2.8 A, AutomaticSECTION Display Group 11, Field 3, Ignition Timing Point Access To IAC Control
IAC is active only when CTP switch is closed. See DISPLAY FIELD 4. Ignition timing point access to IAC control occurs when CTP switch is open at TDC.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.