Buly,
Have you checked to see that the EC-2 is grounded?  A quick check might be to run a jumper from the ground stud on the EC-2 to a good battery ground.  Other than that, it sounds like the EC-2 might be the problem.  But I'll let Tracy make that call.

BTW, I spent most of the day working on tuning my 20B.  I have been working with (AKA - pestering) Tracy on trying to figure out why my 20B was cutting out at 2800 rpm.  It ran really great up to that point.  First thing we discovered was that I had the Renesis CAS wired backwards (yes, only two wires and I managed to wire them backwards).  Changing that improved things by 1000 rpm.  Next, we tried changing the spacing between the sensor and the trigger wheel.  Narrower or wider both made things worse.   Finally, Tracy suggested adding a resistor to the "B" lead of the CAS.  I started with 1300 ohms.  That brought the rpm up about 400 rpm more.  It was now running fine up to 4200 rpm before it started misfiring.  Today, I used a 10K potentiometer wired into the CAS circuit B lead.  As I increased the resistance, the max RPM increased, until I reached a limit to where it didn't help any longer.  I have now replaced the potentiometer with a fixed resistor.

At that point I noticed that the mixture would go way lean at the same time the misfiring began.  So, I richened the MAP table in that range a bit, and sure enough, more RPM.  So, now I'm in a tuning mode rather than a trouble-shooting mode.  It still isn't perfect, but I have been able to hit in excess of 6000 rpm static.  There are still some spots where it needs a bit of adjustment of the mixture knob to make it run properly.  For some reason, I can't seem to get the auto-tune feature to work.  More tuning tomorrow.

The point of the story is to stick with it, you'll figure it out.  And keep Tracy's number close at hand.  ;-)

Mark S.


On 5/18/07, Bulent Aliev <atlasyts@bellsouth.net> wrote: I don't think so George. All the injectors click when ground is
introduced at the pins. They just go dead when connected to the EC2
system?
Buly

On May 18, 2007, at 6:21 AM, George Graham wrote:

> How about water in the fuel?
>
>
> George Graham
> Sarasota Florida
> Mazda RX7 EZ
>
> Don't be flakey. Get Yahoo! Mail for Mobile and
> always stay connected to friends.


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