ibakes
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| posted on 22/5/07 at 08:21 PM |
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Megasquirt questions
Hello all
I have just wired up the loom and connected the MS for the first time and I seem to have a couple of problems
The first one is my fuel pump will turn on but the feed from the ms unit will not keep it switched on through the relay. The light bottom left of
megatune stays on for around 5 seconds
It seems to work fine for the simulator (or will it turn it back on when started??)
When I have the injectors plugged in there is a clicking noise, it only makes it the once, similar to that of a relay, I wired the 12v injector cable
to the positive side, fingers crossed that’s correct.
And my manifold and coolant sensors are reading 10C too cold
Thanks in advance
Megasqurt 1 V3 with MS&S firmware upgrade Ford EDIS, ZX10 Throttle bodies, innovate LC-1 Wideband sensor
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darrens
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| posted on 22/5/07 at 08:30 PM |
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As said, the MS runs the fuel pump intiallly for a few seconds prior to starting, it only runs again once a Tach signal is recived.
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MkIndy7
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| posted on 22/5/07 at 08:48 PM |
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quote:
Originally posted by ibakes
I wired the 12v injector cable to the positive side, fingers crossed that’s correct.
I thought in everything that i'd read that Megasquirt gave out a -ve pulse to the injectors to make them fire.
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ibakes
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| posted on 22/5/07 at 09:27 PM |
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ahh cool... sounds like everything is working ok 
it was a 'kinda want to make sure' post
not using GM sensors but have already used easy therm, both are reading -10C try again tho
and i have been reading lots... honest, just learning more each day
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tks
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| posted on 22/5/07 at 10:45 PM |
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With better words:
Megasquirt grounds the injector the time it does this is the injection duration time.
Tks
The above comments are always meant to be from the above persons perspective.
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ibakes
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| posted on 25/5/07 at 09:23 PM |
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I thought id carry this thred on
Just tried turning my duratec over and I am no recieving any RPM signal in mega tune?
Checked the VR sensor and I cannot move it any nearer and it marrys up perfect with the tool that is supplied around 1mm distance
Buzzed through all connectors and they are going where they are supposed to be (vr sensor to edis, edis to MS)
PIP and SAW are only around 150mm long and shielded
VR sensor I've changed the cable from shield to twisted and swapped the polariety just in case I had it wrong
Is there any way you can test the edis unit just incase thats not working?
and it works when the stim is attached
Thanks in advance
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ibakes
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| posted on 26/5/07 at 04:43 PM |
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Right just checked and i have spark through the edis unit but still no RPM when cranking shown in mega tune 
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chriscook
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| posted on 27/5/07 at 07:45 AM |
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I would start looking at the PIP wire from the EDIS to the MS as this is where the MS gets its RPM signal from.
Is the MS board properly configured for running EDIS ignition?
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ibakes
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| posted on 27/5/07 at 11:13 AM |
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right configured as this
http://www.msextra.com/manuals/MS_Extra_Basic_Configuration_Manual.htm#desedis
But, just separated the wires and now got signal back to the ms unit .. happy now
just got to figure out why im not getting any fuel out of the injectors
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TangoMan
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| posted on 27/5/07 at 11:46 AM |
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I wasn't getting any fuel out of my injectors and ripped the wiring apart trying to sort it.
It turned out that the injectors were stuck closed and the short cranking pulse was not enough to free them. I put 12v across them straight from the
battery to test them and that freed them off.
They have been fine ever since!!
Summer's here!!!!
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ibakes
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| posted on 27/5/07 at 12:21 PM |
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right 12v accross em works fine
gussing its a setting on the ms. hav a nose through again
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rusty nuts
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| posted on 27/5/07 at 12:22 PM |
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I also had sticking injectors with my Kawasaki T/Bs Mate cleaned them on an ASNU machine but 2 took 7 attempts before they came up to scratch .
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ibakes
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| posted on 27/5/07 at 01:42 PM |
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Injectors now working stuck 12v across em and all ok
just working on getting it started, but i cante change the crank timing to trigger return as here
[Edited on 27/5/07 by ibakes]
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ibakes
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| posted on 27/5/07 at 08:36 PM |
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Right spent today trying to get the car started, got RPM Signal in Megatune, got spark from the edis unit and got fuel pumping through the
injectors.
Playing around and I've managed to get the duratec popping from both the throttle bodies and exhaust so its firing but not all together
I've played around with the cranking pulses and required fuel but looking at the spark plugs they are all sooted up.
so after today I've got a couple more questions, the edis unit has the limp mode set to 10degrees, when cranking megatune reads 10.4 is this
correct? which would mean the timing is correct, (not got a light and not overly sure where the timing marks are on a Duratec)
And. I have set the injectors to simultaneous and wired each injector individually so each one will buzz through from pins 32, 33, 34 and 35
At the moment these are randomly placed, should these be set in a particular way?
Apologies to ask, but I’ve been looking through all of the manuals again but still can’t find what I’m after (probably keep looking in the wrong
place)
I have placed a copy of my config, if someone could have a nose to tell me where I’m going wrong.
Many thanks in advance
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chriscook
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| posted on 28/5/07 at 07:36 AM |
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Were you running the ignition using the EDIS before?
Have you done anything to your ignition map? If you are not sure where to start then I would be tempted to set everything to 10 degrees just to get it
started. The edis will only go to limp home mode if it doesn't see the SAW signal - megatune will not know if this is happening or not and
display what the MS is trying to make the advance - not necessarily what it is running at! You really need to get hold of a timing light to check
it.
Have you set your req_fuel and generated a VE table? If you start getting lost go back to the default values.
Its quite common to get the wiring between the coil pack and EDIS wrong. A quick way to check is to swap the plug leads over on the two halves of the
coil pack. I did this with my MJ install initially and it was doing what you describe.
Chris
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ibakes
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| posted on 28/5/07 at 10:55 AM |
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quote:
Originally posted by robocog
Under basic settings > Codebase and outputs
I have FIDLE going to PIP (pin1 edis) and LED17 doing squirt (I'm not planning on using FIDLE and was advised to do it this way)
Changed to Fidle Spark Output A and LED17 to squirt.
quote:
Originally posted by robocog
Spark settings on mine
Trigger angle is at 60 (yours is 0)
Done, I take it that the Edis unit sorts this? as really the crank sensor is at 90 to TDC
quote:
Originally posted by robocog
Also is your ego set to narrowband?
I saw from your sig on the other forum that you are running LC1?
Changed
quote:
Originally posted by robocog
Have you calibrated the TPS? (look in the bottom right corner - It may be worth a check its not going into flood clear mode if you are trying to give
it gas on startup)
Yep calibrated TPS, and not in flood clear mode (unless i want it to be)
quote:
Originally posted by robocog
I am in Gosport and see that you are possibly not that far away from me...
I would be willing to pop over and lend a hand as I have got fuel to do on mine eventually
(2 heads are often better than 1)
Regards
Rob
ooh sounds tempting and many thanks for the offer, may take you up on that if i have no luck today
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