ok, kinda technical question here and hopefully someone has this info stored away somewhere...

I'm looking for info on the voltage, amperage, duration, etc, etc of the signal that the ECU sends to the Ignitor. Also wondering if the "low" signal is ground or just a lower voltage. I would think that the ecu uses a 12V source for the signal and I can't imagine the amperage would be too high. I'm assuming the ignitor followes the low-high transition in the signal, but if that can be verified it would be great.

This is all for a CRX D16A6 motor FYI

Thanks in advance.

Ian

 

12v duration depends on rpm what do you need this info for?

 

If you are having ignitor probs remember that if its acting up it can do it intermittently as well. Just thought I'd let you know to maybe solve a future prob. I have a few spare working ignitors that I use to diagnose-for me its quicker and easier. HTH

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by brianbrannon &raquo;</TD></TR><TR><TD CLASS="quote">12v duration depends on rpm what do you need this info for?</TD></TR></TABLE>

I'm thining about building a launch control circuit. It's something I've thought about using on the track car for ProSolo's and regular starts. I figured if it was a pretty simple signal I could just use a 555ic in astable to create a signal for a specific RPM. If the motor speeds up from too much fuel it will outrun hte signal (aka the signal retards) and power decreases (thus slowing the engine back down) or it completely misses. It's not the prettiest way to limit RPM but it should work, and if it only takes $5 in electronics to figure it out it's no loss if it does not work.

But, still need to know how to duplicate the signal... Your standard 555 can usually only output like 200mA so I need to know if that is enough to trigger the ignitor. What's the duty cycle look like for each signal? 50/50? 25/75? does it matter?\

Thanks

Ian

 

I know someone has this info floating around in their head

 

get gettodyne and you can set the rev limit to what ever you want and it wont rev past the setting until car is moving