I just walked outside, 11 degrees in KC, willys started 1st attemp. I still havent changed any programming
Type: Posts; User: Willys43
I just walked outside, 11 degrees in KC, willys started 1st attemp. I still havent changed any programming
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,...
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...
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...
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...
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...
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.
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...
It started this morning. Yehaaaa. Hittin on all six
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...
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.
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...
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...
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...
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...
[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...
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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.
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...
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...
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...
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,...
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?
"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...
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...
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...