http://www.s2-audi.co.uk/tech_articles/motronic/ecu_faults.htm
65535
Control unit faulty 1111
-Earth connection to J220 contacts 10,14,19,24
-Control unit faulty
-Engine does not start
-With ignition on, no voltage at contact 37 of J220
-Test earth connection of J220
01247
Solenoid valve 1 for activated charcoal canister N80
-Short circuit to positive
-Open circuit/short circuit to earth 4343
-Short circuit to positive in N80 or in the cable connection between N80 and J220
-Short circuit to earth in N80 or in the cable connection between N80 and J220
-Thermofuse S75 faulty
-Open circuit in wiring -Short circuit to positive in N80 or in the cable connection between N80 and J220
-Short circuit to earth in N80 or in the cable connection between N80 and J220
-Thermofuse S75 faulty
-Open circuit in wiring
-Test N80
00523
Intake air temperature sender G42
-Short circuit to earth
-Open circuit / short circuit to positive 2322
-Short circuit to earth
-Open circuit in wiring between G42 & J220
-G42 faulty
-Input of G42 in J220 faulty (J220 faulty)
-Possible driving faults in warm up phase at low temperatures
-Test G42
http://www.sjmautotechnik.com/trouble_shooting/20vcodes.htm
1111 (Blink Fault Code), 65535 VAG1551/2 Fault Code Number
Engine Control Unit (ECU) Defective memory circuits,
Incorrect Checksum for internal memory (EPROMs)
(this can occur on some modified ECU's) Check ECU ground connections, Check EPROM programming
Symptom: Check engine light may come on
4343 (Blink Fault Code), 01247 VAG1551/2 Fault Code Number
Carbon Canister Solenoid, Evaporative Canister Purge Valve (N80),
Open or short circuit, +12V supply circuit breaker or fuse open?
Symptom: Poor response in part of load range, fuel odors, idle speed or quality may be affected
2322 (Blink Fault Code), 00523 VAG1551/2 Fault Code Number
Inlet air temp sensor (G42)
Open or short circuit, Defective sensor or wiring
Symptom: Slight power loss, Increase in fuel consumption
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torque addict / in the real world four wheel drive means safety and traction
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