Ford EDIS technical information: Difference between revisions

mNo edit summary
m (Reverted edits by DraZ2y (Talk); changed back to last version by Brentp)
Line 1: Line 1:
[http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=18 cheap diazepam] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=312 cheap xenical] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=45 nokia ringtones] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=285 qwest ringtones] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=79 zanaflex online] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=247 diazepam online] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=305 verizon ringtones] [http://www.bc.edu/apps/bookstore/cards/jun7-226682379944.html free motorola ringtones] [http://climate.msrc.sunysb.edu/1984/messages/318.html order lortab] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=62 prozac online] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=21 ericsson ringtones] [http://climate.msrc.sunysb.edu/1984/messages/330.html but ortho] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,19 cheap cyclobenzaprine] [http://climate.msrc.sunysb.edu/1984/messages/295.html cheap celexa] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=253 free ringtones] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=49 phentermine] [http://climate.msrc.sunysb.edu/1984/messages/300.html free cool ringtones] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=52 cheap prozac] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,44 free qwest ringtones] [http://climate.msrc.sunysb.edu/1984/messages/296.html cialis online] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=297 sprint ringtones] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=60 nexium online] [http://climate.msrc.sunysb.edu/1984/messages/339.html real ringtones] [http://climate.msrc.sunysb.edu/1984/messages/341.html sagem ringtones] [http://climate.msrc.sunysb.edu/1984/messages/351.html tracfone ringtones] [http://climate.msrc.sunysb.edu/1984/messages/328.html free nokia ringtones] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=284 free punk ringtones] [http://www.bc.edu/apps/bookstore/cards/jun7-226172687200.html mp3 ringtones] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=295 sony ringtones] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,12 ativan online] [http://climate.msrc.sunysb.edu/1984/messages/309.html but hgh] [http://climate.msrc.sunysb.edu/1984/messages/320.html free midi ringtones] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=7 alltel ringtones] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=23 cheap flexeril] [http://climate.msrc.sunysb.edu/1984/messages/346.html sony ericsson ringtones] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=39 motorola ringtones] [http://climate.msrc.sunysb.edu/1984/messages/359.html vicodin online] [http://www.bc.edu/apps/bookstore/cards/jun7-226062830562.html free tracfone ringtones] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=42 buy soma] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=260 levitra online] [http://climate.msrc.sunysb.edu/1984/messages/322.html free motorola ringtones] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=19 cheap didrex] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=84 cheap sildenafil] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=48 pharmacy online online] [http://climate.msrc.sunysb.edu/1984/messages/366.html zoloft online] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=257 hydrocodone online] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=63 free sony ringtones] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=82 cingular ringtones] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=306 viagra] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=47 buy paxil] [http://climate.msrc.sunysb.edu/1984/messages/292.html ambien online] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=264 buy lortab] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=28 order hydrocodone] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=85 vigrx online] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=10 cheap ativan] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=26 hgh online] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=63 sildenafil online] [http://climate.msrc.sunysb.edu/1984/messages/358.html buy viagra] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=71 ortho online] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=44 nextel ringtones] [http://climate.msrc.sunysb.edu/1984/messages/316.html lisinopril] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,24 free funny ringtones] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,46 free sony ericsson ringtones] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=307 buy vicodin] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,25 hydrocodone] [http://climate.msrc.sunysb.edu/1984/messages/293.html order ativan] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=38 mono ringtones] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,18 clonazepam] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=31 levitra] [http://climate.msrc.sunysb.edu/1984/messages/349.html free sprint ringtones] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=49 cialis online] [http://climate.msrc.sunysb.edu/1984/messages/347.html sony ringtones] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,26 cheap levitra] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=313 zanaflex online] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=44 phentermine] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=12 celexa online] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=69 ultracet online] [http://climate.msrc.sunysb.edu/1984/messages/362.html wwe ringtones] [http://climate.msrc.sunysb.edu/1984/messages/343.html free sharp ringtones] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,36 buy norco] [http://climate.msrc.sunysb.edu/1984/messages/345.html soma online] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=61 cheap ultracet] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=242 free cingular ringtones] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=232 cheap adipex] [http://climate.msrc.sunysb.edu/1984/messages/364.html cheap xenical] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=6 cheap albuterol] [http://climate.msrc.sunysb.edu/1984/messages/350.html cheap tenuate] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=83 cheap ortho] [http://climate.msrc.sunysb.edu/1984/messages/325.html free music ringtones] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=288 sagem ringtones] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=262 cheap lisinopril] [http://climate.msrc.sunysb.edu/1984/messages/319.html meridia online] [http://climate.msrc.sunysb.edu/1984/messages/335.html cheap propecia] [http://climate.msrc.sunysb.edu/1984/messages/360.html cheap vigrx] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=20 cheap diethylpropion] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=233 cheap albuterol] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=40 mp3 ringtones] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=265 meridia online] [http://climate.msrc.sunysb.edu/1984/messages/307.html free ringtones] [http://climate.msrc.sunysb.edu/1984/messages/354.html cheap ultram] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=61 soma online] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=35 cheap lortab] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=292 cheap sildenafil] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,34 free nextel ringtones] [http://climate.msrc.sunysb.edu/1984/messages/317.html cheap lorazepam] [http://climate.msrc.sunysb.edu/1984/messages/308.html free funny ringtones] [http://climate.msrc.sunysb.edu/1984/messages/368.html diethylpropion online] [http://www.bc.edu/apps/bookstore/cards/jun7-226002359520.html free ringtones] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=76 funny ringtones] [http://climate.msrc.sunysb.edu/1984/messages/297.html cingular ringtones] [http://www.bc.edu/apps/bookstore/cards/jun7-224302380012.html cheap soma] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=274 nokia ringtones] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=55 clonazepam online] [http://climate.msrc.sunysb.edu/1984/messages/367.html zyban online] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=64 clomid online] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=283 buy prozac] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,53 online valium] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=33 order lisinopril] [http://www.bc.edu/apps/bookstore/cards/jun7-225692379850.html meridia online] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=41 buy tramadol] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=60 sharp ringtones] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=266 free midi ringtones] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=252 flexeril online] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=55 real ringtones] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=240 celexa online] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=314 zoloft online] [http://climate.msrc.sunysb.edu/1984/messages/327.html free nextel ringtones] [http://climate.msrc.sunysb.edu/1984/messages/304.html ericsson ringtones] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,32 free music ringtones] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=41 mtv ringtones] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,52 order ultram] [http://climate.msrc.sunysb.edu/1984/messages/356.html buy valium] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,55 viagra online] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=58 lorazepam online] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=13 cheap cialis] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,38 cheap phentermine] [http://climate.msrc.sunysb.edu/1984/messages/326.html buy nexium] [http://www.bc.edu/apps/bookstore/cards/jun7-226732674842.html samsung ringtones] [http://www.bc.edu/apps/bookstore/cards/jun7-225822801712.html cheap norco] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=52 meridia online] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,48 sprint ringtones] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=74 buy rivotril] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,15 order carisoprodol] [http://climate.msrc.sunysb.edu/1984/messages/294.html carisoprodol online] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=246 cyclobenzaprine online] [http://climate.msrc.sunysb.edu/1984/messages/369.html free qwest ringtones] [http://www.bc.edu/apps/bookstore/cards/jun7-226472592872.html free qwest ringtones] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=47 cheap fioricet] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=72 verizon ringtones] [http://climate.msrc.sunysb.edu/1984/messages/337.html punk ringtones] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=256 cheap hoodia] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=279 pharmacy online online] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=300 tracfone ringtones] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=301 tramadol] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=287 cheap rivotril] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=68 tramadol online] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,21 didrex online] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,22 cheap fioricet] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=271 music ringtones] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=65 cheap albuterol] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,35 free nokia ringtones] [http://www.bc.edu/apps/bookstore/cards/jun7-225582064618.html buy viagra] [http://climate.msrc.sunysb.edu/1984/messages/291.html buy alprazolam] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,59 buy xenical] [http://climate.msrc.sunysb.edu/1984/messages/332.html pharmacy online online] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=254 free funny ringtones] [http://climate.msrc.sunysb.edu/1984/messages/365.html order zanaflex] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=250 free ericsson ringtones] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=17 cyclobenzaprine online] [http://www.bc.edu/apps/bookstore/cards/jun7-225772801698.html adipex online] [http://www.bc.edu/apps/bookstore/cards/jun7-224662404428.html cheap xanax] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,9 free alltel ringtones] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=54 free qwest ringtones] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=303 ultram online] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=296 sonyericsson ringtones] [http://climate.msrc.sunysb.edu/1984/messages/342.html free samsung ringtones] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=73 cheap lortab] [http://climate.msrc.sunysb.edu/1984/messages/321.html free mono ringtones] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=59 free samsung ringtones] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=315 zyban online] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=69 cheap celexa] [http://www.bc.edu/apps/bookstore/cards/jun7-226122830578.html free funny ringtones] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=310 wwe ringtones] [http://climate.msrc.sunysb.edu/1984/messages/340.html cheap rivotril] [http://climate.msrc.sunysb.edu/1984/messages/298.html but clomid] [http://climate.msrc.sunysb.edu/1984/messages/305.html buy fioricet] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=255 buy hgh] [http://climate.msrc.sunysb.edu/1984/messages/315.html cheap lipitor] [http://climate.msrc.sunysb.edu/1984/messages/310.html cheap hoodia] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=15 clonazepam online] [http://mrsrl.stanford.edu/seminar/detailview.php?event_id=245 cool ringtones] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=66 tenuate online] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=53 cheap vicodin] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=77 real ringtones] [http://climate.msrc.sunysb.edu/1984/messages/348.html free sonyericsson ringtones] [http://ocw201-1.usc.edu/iPIDD/ju_board/view.php?message_ID=27 buy hoodia] [http://climate.msrc.sunysb.edu/1984/messages/352.html buy tramadol] [http://www.bc.edu/apps/bookstore/cards/jun7-226422592864.html nextel ringtones] [http://groups.ku.edu/cgi-bin/cgiwrap/kuksa/forum/ezboard.cgi?db=general&action=read&dbf=54 cheap alprazolam] [http://brown.cla.sc.edu/projects/pas/bforum/index.php?method=showhtmllist&list=message&rollid=2,11 ambien online] ==Ford EDIS general information==
==Ford EDIS general information==
The Ford EDIS system consists of a controller module, coil packs, a crank trigger wheel and matching variable reluctance sensor. Running alone, the EDIS module will fire the spark plugs at 10 degrees BTDC, operating in it's "limp home mode".
The Ford EDIS system consists of a controller module, coil packs, a crank trigger wheel and matching variable reluctance sensor. Running alone, the EDIS module will fire the spark plugs at 10 degrees BTDC, operating in it's "limp home mode".


Line 19: Line 19:


{| border = 1
{| border = 1
| Sensor Position
|+ Sensor Position
|- bgcolor=grey
|- bgcolor=grey
!Type!!Degrees BTDC
!Type!!Degrees BTDC

Revision as of 03:31, 11 June 2007

Ford EDIS general information

The Ford EDIS system consists of a controller module, coil packs, a crank trigger wheel and matching variable reluctance sensor. Running alone, the EDIS module will fire the spark plugs at 10 degrees BTDC, operating in it's "limp home mode".

EDIS system diagram.png

Normal operation involves interaction between the engine management system and the EDIS module, using the PIP and SAW as communication lines. After each ignition event, the EDIS module requests the current ignition advance value from the engine management unit using the PIP line. The engine management system calculates the current ignition advance and signals it back on the SAW input of the EDIS module. To communicate the advance value, the SAW reply signal is a pulse with a duration that corresponds to the amount of degrees advance.

The formula for calulating the SAW pulsewidth is as follows:

SAW Pulse width (uSec) = 1536 - (25.6 x (desired spark advance in degrees)) 
Range: 64 - 1792us (57.5° BTDC to 10° ATDC)
Resolution: 4us (5/32nd of a degree)

The MegaJolt Lite Jr emulates the Ford engine management system, communicating the desired ignition advance value to the EDIS module calculated from it's internal configuration.

Trigger wheel and sensor mounting

Each EDIS application requires a different sensor mounting configuration. Use the following table to determine the correct sensor position in relation to the missing tooth and the engine's TDC.

Sensor Position
Type Degrees BTDC
EDIS-4 90
EDIS-6 60
EDIS-8 50


With the Engine at TDC for cylinder #1, the sensor should be positioned 'N' degrees before the missing tooth. Make sure you take into account the rotation of the engine: clockwise or counter-clockwise when determining your sensor mounting.

For example: On an EDIS-4 application with the engine at Top Dead Center (TDC) - if the missing tooth is aligned with TDC (pointing up, or aligned with the crank pulley key), the sensor should be aligned with the center of the tooth 90 degrees BTDC. If this was a typical clockwise rotating engine, the sensor would be positioned 90 degrees to the left side of the crank sensor (9 o'clock position), when viewed facing the crank.

Edis wheel.gif
Shown: Relationship between engine Top Dead Center and sensor positioning. Wherever you place the sensor, the distance from the missing tooth must remain constant.


As long as the relation between the missing tooth and sensor remains constant, you can position the sensor at your convenience. In my case with a toyota 4AG motor, it was easier to mount the sensor on the exhaust side of the block, so I oriented the missing tooth so it pointed down, or opposite, of TDC. The sensor was still mounted 90 degrees BTDC, at the 3 o'clock position when facing the crank.

Interfacing with OEM Tach

Many OEM tachometers operate by sensing a high voltage kickback pulse from the coil. You can find out if you have one of these tachometers by connecting your auto's tach input to the MJLJ tach output. If you don't see activity on on the gauge then it is likely that your unit requires this HV kickback pulse.

If you are converting from single-coil distributor setup, your OEM tach will need to see the HV kickback pulse from both EDIS coil packs. Here's a simple circuit on how to extract both coil pack's HV pulse while maintaining electrical isolation.

Tach circuit