ECM Questions

[peter paul fenske]

Hi Jason

It sure looks like a slodge..
I did a 96 magnum 360 installation a while back.
Used a bunch of gm sensors.

I think Map, CTS, MAT and TPS will work with GM.
You will have to keep the magntetic Slodge distributer but
tie it into a 7 pin HEI module. It will trigger fine.

Later:peter

At 11:33 PM 8/13/98 -0400, you wrote:
>I have got the pinout of the computer out of a 91-95 Jeep Wrangler and I
>thought that I might get some of the more educated than I to take a
>looksie and tell me what they interpret out of it...
>
>1. Map Signal
>2. Coolant Temp Signal
>3. Battery 12V Fused
>4. Sensor Ground
>5. Ground
>6. 5 Volt Supply   -----  5 volts out to sensor?  I assume
>7. 8 Volt Supply   -----  any ideas for what? Sensors??
>8. not used
>9. Ignition Switched 12V Fused
>10. not used
>11. Ground
>12. Ground
>13. Injector #4 Driver
>14. Injector #3 Driver
>15. Injector #2 Driver
>16. Injector #1 Driver
>17. not used
>18.  not used
>19. Ignition Coil #1 Driver   ----- can anybody explain how this works
>20. Generator Field Driver  ----- I assume to excite the alternator?
>21. IAT Sensor Signal
>22. TPS Signal
>23. not used
>24. Crankshaft Position Sensor Signal
>25. SCI Transmit  --- another, what the heck is this
>26. not used
>27. A/C Switch Sense   ---- Ok
>28. A/C Switch Sense   ---- does it need 2?
>29.  Stop Lamp Switch Sense
>30. Park/Neutral Position Sense
>31. not used
>32. SES Light
>33. not used
>34. A/C Relay Control  ----- apparently the computer reads the switch
>and controls the relay???
>35. not used
>36. not used
>37.  not used
>38. Injector #5 Driver
>39. IAC Motor #1 Driver   ---  why 4 IAC drivers????
>40. IAC Motor #3 Driver
>41. O2 Sensor Signal
>42. not used
>43. Tach Signal
>44. Cam Position Sensor Signal
>45. SCI Receive   ----- Anybody have any idea what SCI is
>46. not used
>47.  VSS
>48. not used
>49.  not used
>50. not used
>51. Automatic Shut Down Relay Control   ------ again no idea what this
>is
>52. not used
>53. not used
>54. Upshift lamp driver
>55. not used
>56. not used
>57. Automatic Shut Down Relay Output   ---- another one here
>58. Injector #6 Driver
>59. IAC Motor #4 Driver
>60. IAC Motor #2 Driver
>
>
>The idea here is to replace or piggyback the stock, never has been
>reverse engineered enough to do anything with computer with a GM unit
>which has a wealth of info on it available.  Making it feasible to do
>engine mods and be able to reprogram the computer.  As of now I know of
>only one or two companies that make a so called performance "chip" for
>this vehicle.  And even this isn't a true "chip" in the sense it is a
>module that plugs inline between the harness and computer...Even with
>this chip any upgrades other than exhaust and before the throttle body
>intake stuff oh yeas and the 20 degrees cooler thermostat will still set
>a code...Any ideas?  later,  Jason
>
>
>