EDIS 4 timing

BOHO · Post by **BOHO** » Thu Aug 06, 2009 2:01 pm

Hey guys,

First off the computer that I have for tuning I can't post the msq file or a datalog...so try to think past that for me if you can.

Megatune is showing that it is controlling timing according to my ignition map. I've got good tach signal and everything looks good on the laptop. The actual timing on the engine is showing 6 degrees advanced no matter what. No change I've made will actually affect what the timing is at...so I figured it was in limp mode which I know is 10 degrees but maybe its just my angles and stuff. What would cause this? The module itself? Anything you can think of would be great. Thanks.

Braden

I'm running a ms I with MS II daughter board...running 2.89

Matt Cramer · Post by **Matt Cramer** » Fri Aug 07, 2009 4:56 am

Looks like a combination of a slightly off trigger wheel and the EDIS module not getting the SAW signal.

BOHO · Post by **BOHO** » Fri Aug 07, 2009 10:20 am

Matt, What would cause the module not to get the Saw signal? Could this be simple wiring? Since Megatune is showing that it is controlling timing is it from the computer to the module or from the sensor to the module that would be causing my problems? Thanks Matt.

Braden

Matt Cramer · Post by **Matt Cramer** » Fri Aug 07, 2009 10:26 am

Could be bad wiring, could be wrong settings (which is why everyone asks for an MSQ), could be a problem with the output mod. Usually one of these three.

BOHO · Post by **BOHO** » Fri Aug 07, 2009 10:32 am

I've the settings verbatum out of megamanual...

In MegaTune, set:

Trigger offset = 0Â° (this will vary, depending on the wheel/pickup configuration),
Ignition Input Capture to 'Rising Edge', ('Falling Edge' for MicroSquirtÂ® only if using the VR input circuit - not recommmended),
Cranking Trigger to 'Calculated',
Coil Charging Scheme to 'EDIS',
Spark Output to 'Going High (Inverted)', ('Going High (Inverted)' for MicroSquirt).
Trigger Wheel Teeth to '0' (zero)

I just went and double checked the wiring...I'm 100% sure on it. What do you mean for the output mode Matt? This is a computer that your reset for me back in April. I don't know if you would remember or not. I bought it second hand from a known car that ran well with the same ignition setup. I havn't done anything to the computer internally.

BOHO · Post by **BOHO** » Fri Aug 07, 2009 10:50 am

Matt,

Is there a test I can do with a meter on the SAW end comeing from megasquirt to the module? Pin #36 dark brown wire?

Braden

edit: Since this is a MS1 2.2 board with MSII daughter board....is this the right PIN? or should it be something else? This has me a little confused?
V2.2 main board:

the 5th hole of JP1 to the SAW pin (#3) on the EDIS module (which you can jumper to an unused DB37 pin, if you want),
the PIP pin (#1 on the EDIS module) to DB37 pin #24,
Make sure D8 (the 'John' Zener diode) is jumpered.

Matt Cramer · Post by **Matt Cramer** » Fri Aug 07, 2009 11:28 am

How exactly is the output wired up on this one? It may not be on pin 36.

BOHO · Post by **BOHO** » Fri Aug 07, 2009 11:32 am

I'm trying to figure that out now. I don't see anything jumpered to pin 36 now So I'm not sure. But I really don't know what I'm looking at.

Matt Cramer · Post by **Matt Cramer** » Fri Aug 07, 2009 12:51 pm

Could you post pics of the board?

BOHO · Post by **BOHO** » Fri Aug 07, 2009 1:24 pm

Matt,

I found where it is supposed to be connected. BUT....when I was putting it on I pulled one of the wired off the flyback board and even after re soldering it...I can't get the car to run now....the Middle light is staying on. It is the 12v supply for the flyback board...when I did it the conductive ring came off of the board with the wire....lol....so now I have to try to fix this....Does this sound like I'm on the right track though...would this cause the middle light to stay on.?

Braden

BOHO · Post by **BOHO** » Mon Aug 10, 2009 10:20 am

Matt,

I re soldered the 12v supply to the flyback board but still cant keep the car running. All three lights flash when powered up...everything looks good in megatune but then when I try to crank the middle light stays on and I'm not getting fuel. What do you think is going on? Or what should I do to trouble shoot this?

Matt Cramer · Post by **Matt Cramer** » Mon Aug 10, 2009 10:30 am

Do you get an RPM signal when you crank it?

Usually the middle LED means you're in warmup mode.

BOHO · Post by **BOHO** » Mon Aug 10, 2009 10:33 am

Yes I get signal...the left one flashes correctly and the right one turns on when I push the gas...

So maybe its suppossed to be on and I have another issue?

Matt Cramer · Post by **Matt Cramer** » Tue Aug 11, 2009 4:44 am

Sounds like it. Check if the plugs are wet with fuel next time the engine dies, or if they're dry and you're not getting enough fuel.

BOHO · Post by **BOHO** » Tue Aug 11, 2009 3:39 pm

Matt,

I did the injector test and the car will run on test mode also...It doesn't matter what I do to VE or required fuel...it starts and just dies. I don't know what is causing the fuel to stop. Since it will run on test mode does this confirm that the flyback board and everything is ok? I just have some other issue now? All I did was put an extension...(solder) on to an existing wire that was on the 5th hold of JP1...Again..I can add all the fuel I want...The car starts and AFRs go all the way to 11 or 12 and immiediatly lean out and the car dies...I don't know what to do now.

Braden

Matt Cramer · Post by **Matt Cramer** » Wed Aug 12, 2009 5:23 am

Sounds like the drivers are OK, you just need to get the fuel tuned correctly at this point.

BOHO · Post by **BOHO** » Wed Aug 12, 2009 11:18 am

Matt,

I don't think its in the tune...It doesn't matter how much I turn on VE or Req fuel...no change..If I drove up to the shop do you think you would be able to help me out with the computer again? Do yall accept trade-ins? lol...j/k I've tried everything I can think of at this point...and without being able to show you an msq file I'm stuck...Let me know what you think.

Braden

Matt Cramer · Post by **Matt Cramer** » Wed Aug 12, 2009 12:27 pm

What were the results of the "pull the plugs" test I mentioned earlier?

BOHO · Post by **BOHO** » Thu Aug 13, 2009 11:26 am

Plugs look good Matt, No signs of running lean at all...I have no idea what could be causing this....

Matt Cramer · Post by **Matt Cramer** » Fri Aug 14, 2009 4:50 am

Try adding more afterstart enrichment then.

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EDIS 4 timing

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