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    VWVortex


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    Type: Posts; User: dunc12

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      So I think I figured out how to adjust the...

      So I think I figured out how to adjust the cranking pulse widths. Adjusting the priming pulse curve seems to change the cranking pulse widths. However, playing with the fuel settings doesn't seem to...
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      The latest version of MSnS-extra (029y4a) with...

      The latest version of MSnS-extra (029y4a) with the latest free version of TunerStudio. I have seen screenshots of the table but can't seem to find it myself.

      I also ran my fuel calculations again...
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      Progress! ECU is seeing RPM, car is cranking, and...

      Progress! ECU is seeing RPM, car is cranking, and it almost runs!

      It will crank and sometimes sputter, but I can't seem to get it to catch. Throttle input doesn't seem to make much difference. I...
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      Speaking of test, I re-flowed the solder on U4...

      Speaking of test, I re-flowed the solder on U4 and tested again and I'm back to no signal. At least I have a couple new ones in the mail :thumbup:

      Do either of you have any good spark and fuel...
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      OK, I'll reflow the solder and see if I get...

      OK, I'll reflow the solder and see if I get anything. I'd rather not risk not having it and frying my processor. Is there any way to test it? Or is it just a "replace it and see" kind of thing.
      ...
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      Ah-HA! Action! I briefly jumpered R11 to ground...

      Ah-HA! Action! I briefly jumpered R11 to ground and saw RPM signal jump, fuel pump turned on, etc.

      Is this a sign that the U4 opto-isolator is dead? The solder looks good, and I'm fairly sure it's...
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      I'm having a hard time visualizing what you're...

      I'm having a hard time visualizing what you're describing, so I used MS paint! Tell me if I'm following the thread here. The red line all seems to have continuity, from the bottom of D8 to the right...
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      Jumper to D8? I don't have one, I have a jumper...

      Jumper to D8? I don't have one, I have a jumper from the bottom of R10 to the right side of D9, and I've replaced D8 with a 1K resistor. Should this be different? All per the DIYautotune guide and...
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      I tried jumpering the D5 jumper to ground and got...

      I tried jumpering the D5 jumper to ground and got the hall sensor output voltage flowing through the ground wire. Should this have happened?

      Also, what should my output voltage be from the hall...
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      Slight update, I changed the hall circuit on the...

      Slight update, I changed the hall circuit on the board to the 12V, low to high setup and am still not seeing anything with tapping the signal wire or spinning the dizzy by hand.

      I measured the...
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      After inspecting the board and reading through...

      After inspecting the board and reading through the online guides I've been following, I realized that I had followed the DIYautotune guide assuming that it would set up the board for both spark and...
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      I tried powering the hall sender with 5V from the...

      I tried powering the hall sender with 5V from the TPS wire. Still no go. Didn't get RPM while tapping the signal wire to ground as fast as I could.

      Am I using the correct wire/pin for signal to...
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      Tried a couple of different pull-up resistor...

      Tried a couple of different pull-up resistor setups and still couldn't get mega to see any rpm. No change in pulse width or rpm signal. I tried a 1k resistor in line with the 12V source and also...
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      Thanks! Will try and report back.

      Thanks! Will try and report back.
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      Thanks for the reply :thumbup: I should have...

      Thanks for the reply :thumbup:

      I should have mentioned that I'm running a V2.2 board with megasquirt 1 (MSnS extra code).

      Do I need the pull-up resistor for this setup?
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      Well, bumping this after the project has sat...

      Well, bumping this after the project has sat dormant for a little while due to school and such.

      The motor is in the car, mega is in the car and wired up, and the car is ready to fire!
      ...
    17. I can usually get them all with a variety of...

      I can usually get them all with a variety of extensions, but there's always one that I have to turn out bit by bit with a wrench.

      I would think about using new hardware when re-installing: copper...
    18. Are you removing just the manifold, or the...

      Are you removing just the manifold, or the manifold and downpipe together?

      Removing the intake will make it easier to get to all of the nuts, but you shouldn't have to move the engine at all to...
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      Slight corretion, I am getting O2 signal, but in...

      Slight corretion, I am getting O2 signal, but in a fairly narrow range. I'm assuming I just need to play with the settings and calibration. It is working though. I'll post progress as it comes....
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      Thanks for the info. I guess my plan of action at...

      Thanks for the info. I guess my plan of action at this point is to just keep building, seeing as I have sensor input from everything else (besides O2, which is RPM dependent. Might be an issue?)
      ...
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