There have been multiple requests on how to perform the stomp test on the E34. Here it is per the Bentley manual. (According to Bentley, this is for 1992-1995 models only)
1. Turn ignition key to position 2 (just before cranking the engine)
2. Fully depress the accelerator to the floor 5 times within 5 seconds
3. The check engine light (CEL) will stay on for 5 seconds, blink off, come on for 2.5 seconds, then go off for 2.5 seconds. At this point, the fault codes will begin to flash.
If more than one code has been detected, each code will be separated by a 2.5 second pause. Edit: Sometimes if there is more than one code stored, the computer will NOT advance to the next code after a brief pause like all the write-ups and procedures say, it continually repeated the same code. If this is the case, push the pedal 5x after each code to make it advance to the next code. When all fault codes have been displayed, there will be a 0.5 second flash and then the light will remain off. To read the codes again, turn the key off and then on again. Repeat the process above.
To erase the fault code memory, first make sure the fault code 1000 (short blink and then the light goes out for a long period) is present, then depress the throttle fully for at least 10 seconds. Repeat the stomp test to look for code 1444 (no faults stored).
Here is a decent video I found on you tube of someome doing the the procedure. The code on this video is 1221.
Here is a listing of the fault codes for our OBD I E34's:
1211 DME Control Unit
1215 Air Mass Sensor
1216 Throttle Potentiometer
1218 Output Stage, Group 1
1219 Output Stage, Group 2
1221 Oxygen Sensor 1
1212 Oxygen Sensor 2
1222 Lambda Control 1
1213 Lambda Control 2
1223 Coolant Temperature Sensor
1224 Intake Air Temperature Sensor
1225 Knock Sensor 1
1226 Knock Sensor 2
1227 Knock Sensor 3
1228 Knock Sensor 4
1231 Battery Voltage/DME Main Relay
1232 Throttle Idle Switch
1233 Throttle Wide Open Throttle Switch
1234 Speedometer A Signal
1237 A/C Compressor Cut Off
1242 A/C Compressor
1243 Crankshaft Pulse Sensor
1244 Camshaft Sensor
1245 Intervention AEGS
1247 Ignition Secondary Monitor
1251 Fuel Injector 1 (or group 1 for DME 1.3, cylinders 1, 3, 5)
1252 Fuel Injector 2 (or group 2 for DME 1.3, cylinders 2, 4, 6)
1251 Fuel Injector 1
1252 Fuel Injector 2
1253 Fuel Injector 3
1254 Fuel Injector 4
1255 Fuel Injector 5
1256 Fuel Injector 6
1257 Fuel Injector 7
1258 Fuel Injector 8
1261 Fuel Pump Relay Control
1262 Idle Speed Actuator
1263 Purge Valve
1264 EGO Heater
1265 Fault Lamp (check engine light)
1266 VANOS
1267 Air Pump Relay Control
1271 Ignition Coil 1
1272 Ignition Coil 2
1273 Ignition Coil 3
1274 Ignition Coil 4
1275 Ignition Coil 5
1276 Ignition Coil 6
1277 Ignition Coil 7
1278 Ignition Coil 8
1281 Control Unit Memory Supply
1282 Fault Code Memory
1283 Fuel Injector Output Stage
1286 Knock Control Test Pulse
1444 No Fault Codes stored
1000 End of fault code output
Hope this helps
Steve
1. Turn ignition key to position 2 (just before cranking the engine)
2. Fully depress the accelerator to the floor 5 times within 5 seconds
3. The check engine light (CEL) will stay on for 5 seconds, blink off, come on for 2.5 seconds, then go off for 2.5 seconds. At this point, the fault codes will begin to flash.
If more than one code has been detected, each code will be separated by a 2.5 second pause. Edit: Sometimes if there is more than one code stored, the computer will NOT advance to the next code after a brief pause like all the write-ups and procedures say, it continually repeated the same code. If this is the case, push the pedal 5x after each code to make it advance to the next code. When all fault codes have been displayed, there will be a 0.5 second flash and then the light will remain off. To read the codes again, turn the key off and then on again. Repeat the process above.
To erase the fault code memory, first make sure the fault code 1000 (short blink and then the light goes out for a long period) is present, then depress the throttle fully for at least 10 seconds. Repeat the stomp test to look for code 1444 (no faults stored).
Here is a decent video I found on you tube of someome doing the the procedure. The code on this video is 1221.
Here is a listing of the fault codes for our OBD I E34's:
1211 DME Control Unit
1215 Air Mass Sensor
1216 Throttle Potentiometer
1218 Output Stage, Group 1
1219 Output Stage, Group 2
1221 Oxygen Sensor 1
1212 Oxygen Sensor 2
1222 Lambda Control 1
1213 Lambda Control 2
1223 Coolant Temperature Sensor
1224 Intake Air Temperature Sensor
1225 Knock Sensor 1
1226 Knock Sensor 2
1227 Knock Sensor 3
1228 Knock Sensor 4
1231 Battery Voltage/DME Main Relay
1232 Throttle Idle Switch
1233 Throttle Wide Open Throttle Switch
1234 Speedometer A Signal
1237 A/C Compressor Cut Off
1242 A/C Compressor
1243 Crankshaft Pulse Sensor
1244 Camshaft Sensor
1245 Intervention AEGS
1247 Ignition Secondary Monitor
1251 Fuel Injector 1 (or group 1 for DME 1.3, cylinders 1, 3, 5)
1252 Fuel Injector 2 (or group 2 for DME 1.3, cylinders 2, 4, 6)
1251 Fuel Injector 1
1252 Fuel Injector 2
1253 Fuel Injector 3
1254 Fuel Injector 4
1255 Fuel Injector 5
1256 Fuel Injector 6
1257 Fuel Injector 7
1258 Fuel Injector 8
1261 Fuel Pump Relay Control
1262 Idle Speed Actuator
1263 Purge Valve
1264 EGO Heater
1265 Fault Lamp (check engine light)
1266 VANOS
1267 Air Pump Relay Control
1271 Ignition Coil 1
1272 Ignition Coil 2
1273 Ignition Coil 3
1274 Ignition Coil 4
1275 Ignition Coil 5
1276 Ignition Coil 6
1277 Ignition Coil 7
1278 Ignition Coil 8
1281 Control Unit Memory Supply
1282 Fault Code Memory
1283 Fuel Injector Output Stage
1286 Knock Control Test Pulse
1444 No Fault Codes stored
1000 End of fault code output
Hope this helps
Steve