Hey guys I just bought MS v2.2. I just recieved the unit and had a few questions about the internal wiring of MS. Its missing the center LED and had a good but or jumpers running around. Just want to make sure everything is right before trying to hook this thing up.
#3855, "RE: MS v2.2 circuit question" In response to Reply # 0
Come on guys I know some one has to have some info. Even a good pic of what the v2.2 board should look like would be helpful. Trying to get this ready to go in sometime in the next couple of weeks.
#3857, "RE: MS v2.2 circuit question" In response to Reply # 2
I concur... I have no clue what's up with the LED/JS1-6 wire. Find a way to host better quality images and maybe take one or two photo's of the underside of the board as well.
#3858, "RE: MS v2.2 circuit question" In response to Reply # 3
Ok guys I will try and have better pics of the board up tonight. There is no wiring on the underside of the board, only 2 transistors. I would rather not run and external ignitor, could I use the VB921 transistors and make it internal? Thanks for the help guys.
#3861, "RE: MS v2.2 circuit question" In response to Reply # 4 Jun-19-08 04:47 PM by SilvrEclips
OK here are some pics of the setup. Got the MAP installed tonight and started on the flyback board. The flyback allows you to run low ind. injectors, but can you also run high ind. injectors after its installed?
#3862, "RE: MS v2.2 circuit question" In response to Reply # 5
Originally posted by SilvrEclips The flyback allows you to run low ind. injectors, but can you also run high ind. injectors after its installed?
Yes.
I still have no idea quite what's going on with your unit. Electrically, it doesn't make sense: it's akin to connecting one processor I/O pin to another. I suggest you either learn more about MS circuitry, or have it all looked over by a professional. Sorry if I can't be of more help, I would need to have the box in front of me figure out what was done.
#3864, "RE: MS v2.2 circuit question" In response to Reply # 6
Can someone just post a nice big pic of what the v2.2 board is suppose to look like so I can change mine around to match it. Instead of figuring out whats going on I planned on just removing all of the alterations and starting from there.
Also I started building my wiring harness and noticed that they gave me a lot of IAC wires but not a crank position sensor wire. The pic of the 2.2 board wiring doesn't show a CPS but the 3.0 wiring does. Do I just hook the wire to the same pin?
#3865, "RE: MS v2.2 circuit question" In response to Reply # 7 Jun-20-08 04:08 AM by XtremeRS
Originally posted by SilvrEclips Can someone just post a nice big pic of what the v2.2 board is suppose to look like so I can change mine around to match it. Instead of figuring out whats going on I planned on just removing all of the alterations and starting from there. Also I started building my wiring harness and noticed that they gave me a lot of IAC wires but not a crank position sensor wire. The pic of the 2.2 board wiring doesn't show a CPS but the 3.0 wiring does. Do I just hook the wire to the same pin?
I dont know whats going on there with LED 18. In Megatune, LED 18 can be configured for output 4, which can be fan control or any temperature/hysteresis controlled switched output. So the connection to the negative side of the LED 18 hole is ok, but why they took that wire to pin 6 of JP1 or Processor pin 16, is beyond me. That is an output pin, although I cant find anything in Megatune that uses that pin for any special features..I dont know, i havent messed around with MS1 in quite a while, mostly MS2 stuff now. It's hard to tell about the other jummpers, but it seems the input and output mods for spark and the crank sensor are there, although its hard to see if they are correct.
Anyway to find out who built the board? It may help to ask them whats up with it if you can. As for the crank sensor wire input to the MS, you just use the normal "tach or coil" input wire. Look over the 2.2 schematics very closely and try to follow the circuit mods from the diagram to your board. It's not that hard to follow if you really try.
Also, have you opened up Megatune and seen what LED18 is configured for? That may help..assuming the MS1 chip has been pre-programmed by the seller/builder.
13.5 @108 MPH-2.2 60ft(stupid FWD!) S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential fuel injection) My webpage: http://eclipsed4evr.home.comcast.net -1998 Mitsubishi Eclipse RS-T- "Toy" -1992 Plymouth Laser Turbo AWD(SOLD) -2000 Honda CR-V(daily)
#3866, "RE: MS v2.2 circuit question" In response to Reply # 8
JP3 jumper is soldered to both the positive and neg for the LED. The guy I bought this from never used it and someone else built it for him so no way to contact him. Like I said before I would rather remove all of this BS wiring from the board and do it right instead of trying to figure out what they were doing here. I could follow the instructions and build it back to stock but I know some jumpers have to be added for the 420a motor.
I plan on only running fuel right now till I get the hang of this thing then adding spark in a month or 2. I also would like to have the ignitors built into the MS and not have to use an external transistor pack.
Xtreme could you take a few pics of your board and post them so I could compare the difference between them and alter mine according to yours?
#3867, "RE: MS v2.2 circuit question" In response to Reply # 9 Jun-20-08 01:57 PM by XtremeRS
Originally posted by SilvrEclips JP3 jumper is soldered to both the positive and neg for the LED. The guy I bought this from never used it and someone else built it for him so no way to contact him. Like I said before I would rather remove all of this BS wiring from the board and do it right instead of trying to figure out what they were doing here. I could follow the instructions and build it back to stock but I know some jumpers have to be added for the 420a motor. I plan on only running fuel right now till I get the hang of this thing then adding spark in a month or 2. I also would like to have the ignitors built into the MS and not have to use an external transistor pack. Xtreme could you take a few pics of your board and post them so I could compare the difference between them and alter mine according to yours?
The jumper wire at LED 18 is connected to both the led holes? The negative and positive? By both holes, you do mean where the legs of the Led would solder to, correct? If that is the case, then man, dont ever power up that board! I would de-solder all that crap that goes to and from LED 18, you dont need it or want any of that at this point. Before you unsolder all the other jumpers, you should look at the MS1 420a input/output schematic mods and see if it's done right. No point in de-soldering all the mods if they are already correct. I mean, you will need to know how to follow the mod diagrams anyway, so get that figured out.
I can take some pics, but my camera isn't the greatest for closeups..I'll see what i can do. It will be hard to follow from a picture anyway, nor SHOULD you. If you can't figure out how to read the schematics and do the mods, then you really should find someone who can. Frying these boards isn't all that hard to do if you don't know what you are doing.
13.5 @108 MPH-2.2 60ft(stupid FWD!) S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential fuel injection) My webpage: http://eclipsed4evr.home.comcast.net -1998 Mitsubishi Eclipse RS-T- "Toy" -1992 Plymouth Laser Turbo AWD(SOLD) -2000 Honda CR-V(daily)