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  1. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
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    115,505

    I just walked outside, 11 degrees in KC, willys...

    I just walked outside, 11 degrees in KC, willys started 1st attemp. I still havent changed any programming
  2. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    I was using single trigger and dual ICM. The...

    I was using single trigger and dual ICM. The reason twoICM wouldn't work is becuse the ICM provides a continuos path to ground except when it breaks that ground to cause the coil to fire. Two ICMs,...
  3. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    There secondary computor didnt have the ability...

    There secondary computor didnt have the ability to advance the spark 90 degrees even though the software would let you change the field to 89.65 degrees. The original schematic was incorrect. Only 1...
  4. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    Well gents I have never been able to stabilize...

    Well gents I have never been able to stabilize the secondary computor. I finally abandoned the spark control and put an HEI dist with mechanically advanced spark. Starts and runs, first time every...
  5. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    Tach signal is picked up off of the distributor...

    Tach signal is picked up off of the distributor which still has six pulses so i think it will work. 1227747 ECU is software programmable for 3 cyl engine. I am using mapping for a stock 4.3. My 198...
  6. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    Im planning on staying with idntical tables,...

    Im planning on staying with idntical tables, spark and ve. The laptop i have isnt much. I'll start without the ability to compare one ecu to the other. The harness has an extra injctor wire in it so...
  7. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    2nd fuel regulator is bad, 11lbs. New adjustable...

    2nd fuel regulator is bad, 11lbs. New adjustable regulator due in about Wed or Thur. Hope to try driving maybe this weekend. I'd hate to proceed knowing the fuel pressure was marginal.
  8. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    Two 1227747 (tel:1227747) computers, both...

    Two 1227747 computers, both modified for chip flashing, one controlling odd # cyls and IAC, initial spark set to 0* in computor, the other one controls even # cyl without IAC, with initial spark set...
  9. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    It started this morning. Yehaaaa. Hittin on all...

    It started this morning. Yehaaaa. Hittin on all six
  10. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    It's not even a 225, it's a 198 Fireball, just...

    It's not even a 225, it's a 198 Fireball, just too damn cool to throw out. I checked my gear ratio chart and the highest RPM I used was 4000 to get 82 mph, which it will never see with this nut...
  11. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    It is the Ms3Pro, I didn't see any documentation...

    It is the Ms3Pro, I didn't see any documentation for odd fire in the other models, but that doesn't mean it isn't supported. I think the Ms3 pro is primarily directed at racing. Cool system.
  12. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    Crank trigger, cam sensor, either or both, it...

    Crank trigger, cam sensor, either or both, it looks to be software selectable, it is software selectable for 2 or 4 stroke, or rotary, 2,3,4,5,6,8,12,16 Cyl, 7 or 9 Cyl radial. It looks to be able to...
  13. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    At least 1 megasquirt system has a software...

    At least 1 megasquirt system has a software provision for "degrees of offset" for odd fire engines, GM never fuel injected an odd fire engine, Tunerpro doesn't have any provision for offsetting...
  14. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    The bench testing worked slick, Both ECMs "see"...

    The bench testing worked slick, Both ECMs "see" the same voltage from the 5v reference and the sensors provided the same out put with one or two ECMs hooked up, except for the ECT which required...
  15. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    Oddfire harness

    Here are some pictures of a two computer harness ready for installation onto the Willys. I will cut and solder the wires on the engine side after they are properly routed and connected so the lengths...
  16. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    [Partial QUOTE=Six_Shooter;58697] but I see it...

    [Partial QUOTE=Six_Shooter;58697] but I see it being severely limited in the way it performs. It'll be a nightmare to tune[/QUOTE]
    Six, I would really like to see some documentation that supports...
  17. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    pictures

    103911039210393
    Here are 2 pictures of my test board, The throttle body has been removed because it just sitting loose, and one picture of the adapter I have to make for the throttle body.
  18. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    Right now they are firing off of the same pickup...

    Right now they are firing off of the same pickup coil that has had 3 points of the 6 pickup points ground off. Basically a 3 cylinder engine. The odd cylinder Chip is programmed for 3 cylinders at 0...
  19. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    It looks like everything is working right....

    It looks like everything is working right. TPS,MAP,ETC signals look good. Both computers are outputting spark signals and injector signals. I'm unable to tell if the spark and injector signals are...
  20. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    Hi Eds, Things are still moving forward, I'm...

    Hi Eds,
    Things are still moving forward, I'm working on the test bench with dual computers, I've eliminated a few bugs, burned a couple of chips, and now I'm working on data logging so I can check...
  21. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    I agree Dave, test bench is built and wired, I...

    I agree Dave, test bench is built and wired, I just have to double check the wiring, and get it hooked up to a computer and I off and running. Actually it will probably be off and crashing at first,...
  22. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    OK, then is the ref signal basically for...

    OK, then is the ref signal basically for comparison purposes to allow the ECM to calculate a corrected voltage for when then system voltage varies?
  23. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    "Look negative" wow that's loaded. I thought the...

    "Look negative" wow that's loaded. I thought the ECM measured between W and the 5 volt ref? If the ECM measures between W And Ground, why the ref voltage.

    Delco,
    If you'll look at the Willys43...
  24. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    That's how I thought they worked for allowing the...

    That's how I thought they worked for allowing the signal voltage, I just didn't realize that the remainder of the ref voltage went to ground. That was an excellent description. What confuses me is...
  25. Thread: Odd Fire TBI

    by Willys43
    Replies
    92
    Views
    115,505

    Couldn't the ECM reverse the direction of current...

    Couldn't the ECM reverse the direction of current flow even if the windings had a common ground?
    Is the 5 volt ref positive or negative?
    If car mfg is anything like building construction the...
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