Ben and I are gonna give my MX-3 a once over Thursday, anyone feel like takin a gander at my DIYPnP? It'll run, but seems I'm not getting a clean cam and crank signal... I'm just lost on it, and in need of some help to get it up and running on MS.
Ben and I are gonna give my MX-3 a once over Thursday, anyone feel like takin a gander at my DIYPnP? It'll run, but seems I'm not getting a clean cam and crank signal... I'm just lost on it, and in need of some help to get it up and running on MS.
Talk to MadScientistMatt. He wrote the book (literally), and is Challenge friendly. 
If you were closer I would be there in a flash!!!
I've been i n touch with him, but I'd love to get someone who understands what's goin on to look at it... Its something in the settings.
I'm not sure it's settings; there is a lot of electrical noise. You may be able to adjust the noise filters to dial it out, but this is something it's hard for me to troubleshoot without the car in front of me and an oscilloscope.
Dan,
What are you using for the cam and crank sensor wire?
Are you using a shielded cable? I swapped my EDIS PIP and SAW cables over to some shielded cable as well as the wiring that goes to the VR sensor and it cleaned things up really well. Radio shack was selling 50' rolls of the stuff for under $10. I think.
I had a similar problem with my MS2 Last year at the challenge. Car would run but the cam signal was really noisy and would loose sync at just about any rpm above idle.
Absolutely you need to use shielded wire. For my build this was not enough. I had a build a noise filter on the crank and cam sensor wires. Inline resistor on the + lead and a small capacitor across the two leads. I do not recall the values.
All the wiring on the cars engine is OEM as far as I know. I'll do whatever it takes to get it up and running right... its got a lot of power to be made yet, and its killin me lol
Just got the engine fired back up last night, and when reinstalling the engine harness I found a few grounds that looked questionable including one that appears to be a shielded wire... I'll post more when I get home, but surely it can't hurt!
Even on stock electronics, grounding is a HUGE issue on these motors. Gotta figure how old they are, and the grounds themselves aren't really laid out nicely in a way that makes sense.
Going through and replacing all grounds with quality thick wires is one of the first things i suggest anyone buying anything F2T powered to do. 
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