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 QUATTRO SPORT V6-2.8L (AAH)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSLOCATIONSCONNECTOR LOCATIONS
1995 Audi 90 Quattro Sport V6-2.8L (AAH)
Connector Locations
1995 Audi 90 Quattro Sport V6-2.8L (AAH)SECTION Connector Locations
Connector / Component Locations:
1 Harness connectors:
A For Oxygen Sensor (O2S) heater
^ Heater for heated oxygen sensor, right bank
^ Black 2-pin connector
B For Ignition coils
^ Battery positive voltage (B+) supply
^ White connector
C For Heated Oxygen Sensor (HO2S)
^ Signal wire
^ Under connector holder on bulkhead
D For Knock Sensor (KS) # 1
^ Blue connector
E For Engine Speed (RPM) sensor
^ Gray connector
F For Crankshaft Position (CKP) sensor
^ Black connector
4 Harness connectors:
A For Heated Oxygen Sensor # 2
^ Signal wire
B For Oxygen Sensor (02S) # 2 heater
^ Heater for heated oxygen sensor # 2 , left bank
^ Black 2-pin connector
C For Knock Sensor (KS) # 2
^ Blue connector
RENDER: 1.0x
NO RELATED
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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.