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 K, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)GENERAL INFORMATIONDTC INDEXENGINE CONTROL DTCS
1995 Audi 90 Base, 2.8 K, Automatic
Engine Control DTCS
1995 Audi 90 Base, 2.8 K, AutomaticSECTION Engine Control DTCS
ENGINE CONTROL DTCS
| VAG Code (Blink Code) | Code Description |
|---|---|
| 00000 (4444) | No Fault Recognized |
| 00281 (1231) | Vehicle Speed Sensor (VSS) |
| 00513 (2111) | Engine Speed (RPM) Sensor |
| 00514 (2112) | Crankshaft Position (CKP) Sensor |
| 00515 (2113) | Camshaft Position (CMP) Sensor |
| 00516 (2121) | Closed Throttle Position (CTP) Switch |
| 00518 (2212) | Throttle Position (TP) Sensor |
| 00522 (2312) | Engine Coolant Temperature (ECT) Sensor |
| 00524 (2142) | Right Knock Sensor I (KS I) |
| 00525 (2342) | Right Heated Oxygen Sensor (HO2S) |
| 00531 (2231) | Mass Airflow (MAF) Sensor |
| 00532 (2234) | Supply Voltage |
| 00537 (2341) | Right Heated Oxygen Sensor (HO2S) Control |
| 00540 (2144) | Left Knock Sensor II (KS II) |
| 00553 (2324) | Mass Airflow (MAF) Sensor |
| 00554 (2331) | Left Heated Oxygen Sensor (HO2S) Control |
| 00555 (2332) | Left Heated Oxygen Sensor (HO2S) |
| 00560 (2411) | EGR System |
| 00577 (2141) | Knock Regulation - Cyl. 1 |
| 00578 (2141) | Knock Regulation - Cyl. 2 |
| 00579 (2141) | Knock Regulation - Cyl. 3 |
| 00580 (2143) | Knock Regulation - Cyl. 4 |
| 00581 (2143) | Knock Regulation - Cyl. 5 |
| 00582 (2143) | Knock Regulation - Cyl. 6 |
| 00585 (2411) | EGR Temperature Sensor |
| 00609 (4332) | Ignition Power Output Stage 1 |
| 00610 (4332) | Ignition Power Output Stage 2 |
| 00611 (4332) | Ignition Power Output Stage 3 |
| 00689 (4431) | Leak In Intake Air System |
| 01242 (4332) | Final Stages Of Control |
| " | (Ignition Power Output Stage) |
| 01243 (4333) | Intake Manifold Change-Over (IMCO) Valve |
| 01247 (4343) | EVAP Control Solenoid Valve |
| 01249 (4411) | Fuel Injector Cyl. No. 1 |
| 01250 (4412) | Fuel Injector Cyl. No. 2 |
| 01251 (4413) | Fuel Injector Cyl. No. 3 |
| 01252 (4414) | Fuel Injector Cyl. No. 4 |
| 01253 (4415 4421) | Fuel Injector Cyl. No. 5 |
| 01254 (4416 4422) | Fuel Injector Cyl. No. 6 |
| 01257 (4431) | Idle Air Control (IAC) Valve |
| 01265 (4312) | EGR Control Solenoid Valve |
| 65535 (1111) | PCM Malfunction |
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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.