miatacsp50

I have just installed the trackspeed COP kit on my 95miata with the MS2PNP. the kit was wired for sequential spark and I have run 2 wires back to the MS2PNP with cyl 3 being pin 16 and cyl 4 being pin 14. Cylinder 4 is not firing.

Can someone help me with the spark option settings or tell me if I need to adjust any jumpers on the board so the cyl 4 will trigger.

Thank you very much.

aidandj

iTrader: (5)

<p>Is the MSPNP2 wired for sequential ignition?</p>

miatacsp50

The unit I have is a pnp from 949 racing for a 94/95 miata. No doubt it was setup for wasted spark however it was my understanding it could be optioned for sequential spark and that is my question. What do I need to do to the unit I have either in the software panel or by hardware jumpers to run sequential spark? Or can I not do that? There have been other threads describing a similar situation on spark D but they were not the PNP units

Braineack

iTrader: (62)

I'm curious: did you honestly believe that if you wired it for seq. spark without telling the MS to now fire 4 spark drivers instead of 2 it was going to work?

You should have wired:

Cly 1 to Spark A - OEM (Brn/Yllw)
Cly 2 to Spark D - Pin 14
Cly 3 to Spark B - OEM (Brn)
Cly 4 to Spark C - Pin 15

Then you have to change the ignition settings from wasted spark to coil on plug of course.

miatacsp50

The information that was given to me from Trackspeed was

Cyl 1 br/yl
Cyl 2 br
Cyl 3 pin 16
Cyl 4 pin 14

I did make the change in tuner studio

With firing order being 1,3,4,2 I dont see how this can work and thats why I am asking the forum for help.

Braineack

iTrader: (62)

Andrew might have forgot about the firing order?

1,3,4,2
A,B,C,D

miatacsp50

Will I have to change jumpers on the board (this is a pnp unit) for seq firing as well as the change in tuner studio? If so do I remove the jumper set 9 for WS and jump the seq per the ms2pnp manual. Or do I leave that alone?

Braineack

iTrader: (62)

I suppose you do and on jumper set 12. Then you'll need to make sure that you don't have output conflicts that are already using ALED and WLED. (im sure fan is on one of those).

The MS2 runs out of i/os fast when you do seq. fuel and spark.

Savington

iTrader: (31)

Nope, since I didn't give him that info. The harness is wired so that coil #1 connects to the cyl1/4 driver, coil #2 connects to the cyl 2/3 driver, and coils #3 and #4 are wired directly to the ECU by the installer. I don't sell MSPNP2s, so I have no idea where to hook those two wires or which jumpers to move inside the box (if any).

Braineack

iTrader: (62)

whatevz. how i suggest makes sense, since you're altering wiring anyway, you can make it so A nd B outputs go to 2 and 3 through stock wiring, and just need to run the 2 extra for C and D.

miatacsp50

I just want to resolve this so I can race. I appreciate the help really I do however I went down this path because written instructions said cyl 1 br/yl. And cyl 2 br so I got stuck on cylinder number not spark abcd. Sorry to upset anyone

miatacsp50

Braineack thanks for your help

So here is what I have
Cyl 1 spark a br/yl. Trackspeed wh
Cyl 2 spark D pin 14 trkspd orange
Cyl 3 spark B brown. Trkspd blue
Cyl 4 spark C pin 15. Trackspd green

Jump 9, 10, 12&13 per diy and changed ms to cop

Car is not running properly. Can you or anyone see issues with above

aidandj

iTrader: (5)

Have you confirmed that it is setup for seq spark. As in the extra hardware needed.

miatacsp50

We I bought a harness for my car from trackspeed that was wired for sequential with toyota cops. I have jumped the pins in the ms2 according to diy. What else should I have to make this work? Thanks

aidandj

iTrader: (5)

Determine whether you have 2 or 4 ignition drivers.

miatacsp50

I don't know trying to get help from trackspeed

aidandj

iTrader: (5)

Trackspeed did the harness, has nothing to do with the drivers. You need to figure out if your ECU was optioned for sequential ignition before you troubleshoot the harness.
<br />
<br />What brain said. Use output mode and see if all spark plugs are firing.

Braineack

iTrader: (62)

output test mode.

should have been doen before you tried to start the car: Megasquirt MS2/Extra Output Testing


make sure all the plugs are firing and are firing on the correct cly.

miatacsp50

Thx I will do that later today however one thing that now stands out is I am running a 99 motor with CAS and no trigger wheel so not sure if that's a deal breaker on this or not.

The ecu is optioned for sequential

Braineack

iTrader: (62)

no that doesnt matter. you can run seq. spark on all miatas 90-15.