Help on single turbo conversion in progress please anyone?????

[Reckliz RS STi]

Im stuck on the ecu re-pinning and if everyone could help? it would be much appreciated....

I have a 94 RS BD5a model, it have the R4-factory ecu 4-Plug, and I have re-wired a 94' GC8 wrx 4-pulg ecu into this vehicle using the $-plug ecu pinout diagram. I have wired it in now, but ecu keeps spitting out fault codes!!

At first it was 44, 45, 24.

Then I pluged test plugs and started the car and the car runs and sound normal runnig condition, only 45 came up, once car was warm(from first time ever running as S/Turrbo) i turned it off, and now codes: 31, 33, 42, 44, 45, 24 are now coming up! WTF???

Does anyone have any Ideas Please????

[yellowsub]

11 Crankshaft position sensor Irregular signal received -

12 Starter switch Abnormal signal emitted from switch Turns starter sw signal to off

13 Camshaft position sensor Irregular signal received -

21 Engine coolant temp sensor Abnormal signal emitted ECU adopts a set temp. Radiator fans ON

22 Knock Sensor Abnormal voltage emitted Sets regular fuel map, retards ignition by 5degrees

23 Mass air flow sensor (AFM) Abnormal voltage emitted Fuel map set by revs and throttle

24 Idle air control solenoid Valve inoperative adjusts idle via fuel set by revs, vehicle speed & throttle

31 Idle switch (EJ20G) Abnormal voltage emitted ECU adopts a set throttle position value

32 Oxygen sensor Inoperative -

33 Vehicle speed sensor 2 Abnormal voltage entered ECU adopts a set value

38 Torque control signal (AT) Abnormal signal from TCM -

42 Idle switch Abnormal signal from TPS Idle switch ?

44 Wastegate control solenoid Solenoid inoperative Fuelcut when WOT at heavy load

45 Pressure sensor /

Pressure exchange solenoid Abnormal signal from pressure sensor or

pressure exchange solenoid inoperative Fuelcut when WOT at heavy load

51 Neutral switch (MT) Abnormal signal from switch -

51 Park/Neutral position switch (AT) Abnormal signal from inhibitor switch -

53 Immobiliser (if equip) Faulty Immobiliser system -

61 Inhalation valve solenoid

62 Exhaust valve solenoid (vacuum)

63 Boost pressure relief valve solenoid

64 Secondary waste gate solenoid

65 Differential pressure sensor

66 Sequential twin turbo system Somethings broke au! runs like poos

67 Exhaust valve solenoid (+ve pressure)

68 Exhaust valve duty solenoid

these are your cell codes go though them and find the ones that have poped up and fix and clear

[Reckliz RS STi]

Thanks mate,

I also was wondering, because im running a 4plug ecu from a 94 wrx, will all the sensors from to 94 twin turbo model still work with the wrx sensors? The twin turbo sensors look more similar to the v3/v4 wrx models, but the ecu from the 94 wrx usually run sensors similar to the v1/v2 and bc5 models?

Could that be a possiblity why this 94 wrx ecu is playing up maybe?

[Reckliz RS STi]

I have found that the 94 wrx ecu has a pinout for Idle Switch? But the original twin turbo does not? Does anyone know where the Idle switch pin would go to please? Thanks