Need help with EDIS (no spark)
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).
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.
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).
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.
-
1bd81roccos
- MegaSquirt Newbie
- Posts: 3
- Joined: Sun Feb 22, 2009 10:21 pm
Need help with EDIS (no spark)
Ok so I have the v3 main board and relay board running ford edis ign. I have fuel (plugs get wet after cranking) but no spark. On the megatune I have no RPM reading while cranking also it always says not cranking in the lower left corner. I have 2.5v on the "saw" going to the relay board and 0v on the "pip" from that I gather that the edis module isn't turning on. I've tried reversing the polarity of the sensor no dice. I have 12v at the module and the coil but no spark. I tried moving the sensor closer to the wheel no dice. Any ideas? I really need to get this car running
-
Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: Need help with EDIS (no spark)
Does it work if you unplug SAW? If it doesn't, sounds like the module is faulty.
Re: Need help with EDIS (no spark)
Hello there,
First of all verify wiring, and pay particular attention to that you have the pin numbering on EDIS module the
right way. The module has a 1 cast in close to pin 1 ( Which is PIP)
Then make sure that you have resistor plugs and or HT resistor wires .
The EDIS needs > 5kOms per spark circuit ( plug and lead) it might otherwise shut
down after a few sparks only.
Disconnect both PIP and SAW and try it out as a stand alone.
When switched on but not cranking you shall have a steady 12 V on PIP, pin 1.
When cranking pin 1 shall have a pulse per ignition event, a normal dvm will
show a reading on some 6-8 Volts.
If all above is correct , try reversing the VR wires , and make sure that the VR wire
is shielded as per the mnual and kept well away from HTwires.
EDIS is extremely tough , the hardware seems bulletproof and the function
impeccable.
Be methodical , follow then manual , and you will soon get a jolt out of it
Heribet
First of all verify wiring, and pay particular attention to that you have the pin numbering on EDIS module the
right way. The module has a 1 cast in close to pin 1 ( Which is PIP)
Then make sure that you have resistor plugs and or HT resistor wires .
The EDIS needs > 5kOms per spark circuit ( plug and lead) it might otherwise shut
down after a few sparks only.
Disconnect both PIP and SAW and try it out as a stand alone.
When switched on but not cranking you shall have a steady 12 V on PIP, pin 1.
When cranking pin 1 shall have a pulse per ignition event, a normal dvm will
show a reading on some 6-8 Volts.
If all above is correct , try reversing the VR wires , and make sure that the VR wire
is shielded as per the mnual and kept well away from HTwires.
EDIS is extremely tough , the hardware seems bulletproof and the function
impeccable.
Be methodical , follow then manual , and you will soon get a jolt out of it
Heribet
If it is not understood , it will not work!
-
1bd81roccos
- MegaSquirt Newbie
- Posts: 3
- Joined: Sun Feb 22, 2009 10:21 pm
Re: Need help with EDIS (no spark)
turns out i dont have fuel either and no rpm on the megatune ideas what would cause this?
-
Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: Need help with EDIS (no spark)
If the EDIS module isn't working, it will not send an RPM signal to the MS, and if the MS doesn't get an RPM signal, you will get no fuel.
-
1bd81roccos
- MegaSquirt Newbie
- Posts: 3
- Joined: Sun Feb 22, 2009 10:21 pm
Re: Need help with EDIS (no spark)
so got spark finally. It was the coil pack wasn't recieving a full 12v because i wired the power to the module then to the coil when i put the coil on its own power wire got spark.
but I still don't get an rpm signal in megatune..... any ideas on this one. Also megatune doest show throttle response I checked for resistance at the tps and it changes as you move the throttle, followed it all the way back to the ms and its there too but megatune isn't seeing it. It sees the tps because the gauge isn't red and it reads 8% all the time no matter if i calibrate it or not.
but I still don't get an rpm signal in megatune..... any ideas on this one. Also megatune doest show throttle response I checked for resistance at the tps and it changes as you move the throttle, followed it all the way back to the ms and its there too but megatune isn't seeing it. It sees the tps because the gauge isn't red and it reads 8% all the time no matter if i calibrate it or not.