EDIS control

This forum is for discussing ignition setup, tuning, and troubleshooting for MS-II. Click these links for info on GM's HEI, EDIS, direct coil control, others.
Forum rules
Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.

If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.

If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days

The full forum rules are here: Forum Rules, be sure to read them all regularly.
Post Reply
foundnemo25
MegaSquirt Newbie
Posts: 3
Joined: Fri Aug 07, 2009 10:43 pm

EDIS control

Post by foundnemo25 »

I have a 94 ford escort with factory edis. Rich now I am running MSII 3.0 v2.89 fuel only control. Today I decided to have ms control the timing. I have the factory harness in place to control IAC and fuel pump. I cut PIN 1 on the edis and wired it to TACH on the relay board and cut PIN 3 and wired it to S5 on the relay board. The remaining wires are running to everything else as stock so I know that they are fine. I set up the ignition setting :
Ignition Capture-Falling edge
Crank trigger- Calculated
Coil charge Scheme- EDIS
Spark Output- Going high and Inverted
Trigger Offset- 0
Predictor Aligorium- Last Interval

I tried starting it and I get a rpm signal and after a few tried the car started but ran badly then died and is hard starting it ever since. The VE and the AFR table are the same, spark advance table I have gotten from (****) as a starting reference point. Could it be the spark advance map. I just need a little light shed on my situation. Thanks
Here is my msq
EDIS_help.msq
You do not have the required permissions to view the files attached to this post.
foundnemo25
MegaSquirt Newbie
Posts: 3
Joined: Fri Aug 07, 2009 10:43 pm

Re: EDIS control

Post by foundnemo25 »

People have read this but no one can respond. I need some help and I know someone can atleast shine some light on my situation.
turboy
MegaSquirt Newbie
Posts: 12
Joined: Sat Jan 27, 2007 10:54 am

Re: EDIS control

Post by turboy »

Did you set all the right jumpers? http://www.megamanual.com/ms2/EDIS.htm
Try running the engine without the saw signal, pin #3. It should run in limp home mode, 10deg btdc.

SFC
foundnemo25
MegaSquirt Newbie
Posts: 3
Joined: Fri Aug 07, 2009 10:43 pm

Re: EDIS control

Post by foundnemo25 »

I let it run in limp mode and it runs. I received the MSII 3.0 from DIYAutoTune preassembled. I even checked the wiring and everything is correct. I even hooked the PIP and SAW back up to the factory ecu putting it back in "Fuel Only" mode and the car runs fine with the setup that I have in there already. That is why I think it is the spark map but am not sure. I receive a tach signal and the rpm is reading correctly but the car really doesnt run. Maybe it is the fact that the factory compression of the engine is 9.2:1and now it is 7.8:1 would play a large role in the problem. If there was a way that I could find out what the factory timing was so I can set it at that and make sure that it is just the spark advance map. I dont know how to set that up and finding someone with the some setup is impossible.
turboy
MegaSquirt Newbie
Posts: 12
Joined: Sat Jan 27, 2007 10:54 am

Re: EDIS control

Post by turboy »

The lowered cr does change the timing but not in a way that it's not even running. Post your sparkmap not the cfg.

SFC
twofouroh
MegaSquirt Newbie
Posts: 6
Joined: Fri Jul 06, 2007 9:58 am
Location: Gainesville, FL

Re: EDIS control

Post by twofouroh »

I know this is a long time after your original post, but isn't the input supposed to be 'rising edge' ??
'84 Nissan 720 Kingcab 4x4
'74 Datsun 260Z
- both fighting over -
VQ35DE + MS II / 3.0
Post Reply