guywithFX
05-17-2006, 02:55 AM
I have a V2.2 board running MSnS-e 29q firmware and it has a "bad/buggy" RPM signal. Originally when I built the board the RPM displayed fine when used with a stim, now it doesn't. The car will run sometimes (usually only a few seconds) and then die as the RPMs drop until they reach zero. Since this problem makes the car undriveable I need to get it fixed asap. I am sure that it is the board itself as I plugged Jared's (ColdFusion21) board into my car and it ran great with no problems whatsoever. I now am sure the problem lies within the MS unit.
Here is a picture of my board that I took this evening and you could see if anything at all is out of place it would be great as that's what is wrong.
http://img228.imageshack.us/img228/1614/msboard7hl.th.jpg (http://img228.imageshack.us/my.php?image=msboard7hl.jpg)
Also if anyone, Kenny more specifically knows which circuits and resistors relate and operate the RPM signal, I would love to know which ones they are and how to diagnose this problem. I'm guessing it might be a burnt out compnent as it used to work.
Finally, I have a dyno session reserved for this Saturday for tuning and need the car running by then. If anyone locally (Portland area) has a MegaSquirt unit that they have lying around (yes, I know it happens...) that I might possibly be able to borrow and/or rent for about a week or less till I get this RPM signal fixed on mine it would be AMAZING and I would be incredibly greatful. As in I'll come over and help you with your car(s). :) This is for my DD and I am having trouble without transportation lately.
If anyone has any information at all, please just post. :)
Thanks, Nick
Here is a picture of my board that I took this evening and you could see if anything at all is out of place it would be great as that's what is wrong.
http://img228.imageshack.us/img228/1614/msboard7hl.th.jpg (http://img228.imageshack.us/my.php?image=msboard7hl.jpg)
Also if anyone, Kenny more specifically knows which circuits and resistors relate and operate the RPM signal, I would love to know which ones they are and how to diagnose this problem. I'm guessing it might be a burnt out compnent as it used to work.
Finally, I have a dyno session reserved for this Saturday for tuning and need the car running by then. If anyone locally (Portland area) has a MegaSquirt unit that they have lying around (yes, I know it happens...) that I might possibly be able to borrow and/or rent for about a week or less till I get this RPM signal fixed on mine it would be AMAZING and I would be incredibly greatful. As in I'll come over and help you with your car(s). :) This is for my DD and I am having trouble without transportation lately.
If anyone has any information at all, please just post. :)
Thanks, Nick