jthom5147 Posted January 17, 2012 Share Posted January 17, 2012 (edited) Hello readers, I've put my turbo engine in the car over the past weekend (pic attached) and I'm getting ready to wire the car, but before I start, I want to make sure my wiring diagram that I will be following is correct. I have been doing what seems like endless reading and research but the best way to make sure what I have is correct is review by the experts. If any of you can spare some time to review what I have, that would be absolutely amazing. I hate to be a nuisance. Attached is a wiring diagram made in EXCEL. The diagram shows the wiring between the relay board and the car. The 4-hole socket for injector power, and the other 3-holes for relay board/MS power were rotated 90 degrees clockwise for simplicity. I tried to be detailed regarding where the wires go. Things to note about the car: 1973 240z MS2 V3.57 board Relay board l28et stock 280cc injectors (I'll be using PWM controls for these instead of the resistor pack. As such, I will use the injector settings posted by Z-ya here: http://forums.hybridz.org/index.php/topic/55910-injector-opening-times-spread-sheet/) stock t3 turbo EDIS (using the edis-6 diagram posted on the MS website here: http://www.megamanual.com/ms2/EDIS.htm) coil pack from a 2000 Dodge caravan 3.3L (mine has the plug type with the 4 spades in a row, so im using the info posted here by cygnusx1 as a reference: http://forums.hybridz.org/showpost.php?p=930882&postcount=18) -- note on edis to ign coil pack wiring: since the L-series firing order is 153624, i wanted the edis module to fire the coils from one side to the other in order to clean up the spark plug wires. Since EDIS fires the coils attached to pins 10,11,12 on the edis module in the firing order 10->12->11->10.. etc, I needed pin 10 to connect to the coil pack for the cylinders that fire first and fourth in the Z firing order which is 1-6, then pin 12 needed to go to the next adjacent coil pack to fire cylinders 2-5, and lastly edis pin 11 to the remaining coil pack, and hence to the last 2 clyinders (3-4). Please let me know if this logic is fouled. Innovate LC-1 (using the info in the quick start guide found here: http://www.innovatemotorsports.com/support/quickstart/LC-1_Quickstart.pdf and also from DIYautotune found here: http://www.diyautotune.com/faq/faq.htm#LC1wiring) 2 elec. radiator fans also wired into the fuel pump relay. CLT sensor will use the CHTS (I'll have to calibrate it in MS using the values found here: http://forums.hybridz.org/index.php/topic/57800-280z-coolant-temp-sensor-values-for-easytherm/) Please post any comments, concerns, errors, constructive/destructive criticisms, etc. Thank you all very much for your time. James Edited January 17, 2012 by jthom5147 Quote Link to comment Share on other sites More sharing options...
mobythevan Posted January 17, 2012 Share Posted January 17, 2012 The schematic is a little hard to read, but it looks like you have things correct as far as I can tell. I don't know EDIS wiring so I didn't look at that part. Hello readers, I've put my turbo engine in the car over the past weekend (pic attached) and I'm getting ready to wire the car, but before I start, I want to make sure my wiring diagram that I will be following is correct. I have been doing what seems like endless reading and research but the best way to make sure what I have is correct is review by the experts. If any of you can spare some time to review what I have, that would be absolutely amazing. I hate to be a nuisance. Attached is a wiring diagram made in EXCEL. The diagram shows the wiring between the relay board and the car. The 4-hole socket for injector power, and the other 3-holes for relay board/MS power were rotated 90 degrees clockwise for simplicity. I tried to be detailed regarding where the wires go. Things to note about the car: 1973 240z MS2 V3.57 board Relay board l28et stock 280cc injectors (I'll be using PWM controls for these instead of the resistor pack. As such, I will use the injector settings posted by Z-ya here: http://forums.hybridz.org/index.php/topic/55910-injector-opening-times-spread-sheet/) stock t3 turbo EDIS (using the edis-6 diagram posted on the MS website here: http://www.megamanual.com/ms2/EDIS.htm) coil pack from a 2000 Dodge caravan 3.3L (mine has the plug type with the 4 spades in a row, so im using the info posted here by cygnusx1 as a reference: http://forums.hybridz.org/showpost.php?p=930882&postcount=18) -- note on edis to ign coil pack wiring: since the L-series firing order is 153624, i wanted the edis module to fire the coils from one side to the other in order to clean up the spark plug wires. Since EDIS fires the coils attached to pins 10,11,12 on the edis module in the firing order 10->12->11->10.. etc, I needed pin 10 to connect to the coil pack for the cylinders that fire first and fourth in the Z firing order which is 1-6, then pin 12 needed to go to the next adjacent coil pack to fire cylinders 2-5, and lastly edis pin 11 to the remaining coil pack, and hence to the last 2 clyinders (3-4). Please let me know if this logic is fouled. Innovate LC-1 (using the info in the quick start guide found here: http://www.innovatemotorsports.com/support/quickstart/LC-1_Quickstart.pdf and also from DIYautotune found here: http://www.diyautotune.com/faq/faq.htm#LC1wiring) 2 elec. radiator fans also wired into the fuel pump relay. CLT sensor will use the CHTS (I'll have to calibrate it in MS using the values found here: http://forums.hybridz.org/index.php/topic/57800-280z-coolant-temp-sensor-values-for-easytherm/) Please post any comments, concerns, errors, constructive/destructive criticisms, etc. Thank you all very much for your time. James Quote Link to comment Share on other sites More sharing options...
jthom5147 Posted January 17, 2012 Author Share Posted January 17, 2012 Mobythevan, Thank you very much. I'm glad that it looks correct to you, especially with your credentials. Much appreciation, James Quote Link to comment Share on other sites More sharing options...
mobythevan Posted January 17, 2012 Share Posted January 17, 2012 I do notice one basic thing, may not matter much. Injectors are usually marked with a positive and negative side. Your schematic is backwards, you should have positive connected to the injector 12 volt and then negative sides connected to the inj1 and inj2 banks. Quote Link to comment Share on other sites More sharing options...
mobythevan Posted January 17, 2012 Share Posted January 17, 2012 Mobythevan, Thank you very much. I'm glad that it looks correct to you, especially with your credentials. Much appreciation, James There are plenty of people who know more and work more with megasquirt and EFI systems. But thanks for the kind words. Quote Link to comment Share on other sites More sharing options...
zack_280 Posted January 18, 2012 Share Posted January 18, 2012 The only issue I see is that you are running the injectors off of the relay board and you have 4 injectors on one fuse and 2 on the other. Probably that won't be a problem, but it would be ideal to make it 3 and 3. Here's the relay board schematic. Top right shows terminals 1,2,3,4 for the injector +12. http://www.bgsoflex.com/mspower/mspower_ShemV1.2.pdf I don't know much about EDIS and the rest is pretty straight forward. One other thing...If you are running lowZ injectors (and maybe even if you aren't) you should look into adding a 220nf capacitor across the H1 terminal in the ECU box. I was having momentary voltage drops to about 6V before I added the cap and that seems to have fixed my problem. I believe I did a brief write up on this in a recent thread. Quote Link to comment Share on other sites More sharing options...
zack_280 Posted January 18, 2012 Share Posted January 18, 2012 I guess it does make some differnence. If you blow the fuse for one bank, you should be able to run on 3, so I would definitely make the change. http://forums.hybridz.org/index.php/topic/104480-ms2-injector-connection-question/page__pid__977248?do=findComment&comment=977248 Quote Link to comment Share on other sites More sharing options...
jthom5147 Posted January 18, 2012 Author Share Posted January 18, 2012 Zack, Thank you also for looking, and that's a good suggestion. I've updated my schematic accordingly. Quote Link to comment Share on other sites More sharing options...
jthom5147 Posted January 24, 2012 Author Share Posted January 24, 2012 Anyone have any insightful on my edis wiring? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.