ok ive posted this on another forum i got this reply for what way should it be exactly wired=http://www.boostedmi..._MS_pinouts.jpg

i wired it that way and nothing.

this is the way it was wired on the car it cam from and im told this is how it ran!

pic 1

wires at the top as in pic, red/black , blue,yellow, light green/black ,green, yellow/white, light green/yellow, space ,brown /yellow, space ,violet, blue/red

bottom of the plug in pic 1, brown/white, black/green , blue/yellow ,red , space , blue/black, brown , white/yellow , white/green ,white/red


plug2

top as in pic= yellow/black , blue/yellow, yellow , space, blue/white , red , space , light green/red , black/white , yellow/blue ,space , black green , black

bottom row = space , yellow/red , space , space , space , red/green , red/blue , light green/white , space , space , white , black/green , black

i dont know what way i should have it wired at the minute

 

are the above pics the car it wont run on?

 

the above pics is how i exactly i have the loom wired in my car , these plugs came with the ecu so i could replicate exactly how it needed to be,

i then changed the pins around to match the link above and it didnt start that way either

 

then I'd wire it like this:




so going by your pinout:


1:
[blank] [blank] [1Q to 1J] [blank] [blank] [blank] [blank] [Pin 31 - spark output] [blank] [blank] [blank]

[clutch input (js7)] [blank] [fan control] [blank] [blank] [blank] [1J to 1Q] [IGN PIN] [blank] [blank] [12v]


2:

[blank] [IDLE] [INJ 1&3] [blank] [COOLANT] [blank] [blank] [blank] [blank] [CAS - pin 25] [CAS] [GRND] [GRND]

[blank] [blank] [INJ 2&4] [blank] [blank] [AIT] [O2] [blank] [blank] [blank] [blank] [GRND] [GRND]


db37 needs to match this:








you need to ignore the TPS wiring and the wire on 1C. the wire on 1C is after you build a special circuit for the fuel pump. I thought you said you had a diypnp????

 

this is the post by the orignal owner of the ecu and engine etc, will tus help u guys more???

https://www.miataturbo.net/megasquirt-18/megasquirt-problem-no-spark-no-fuel-cant-connect-pc-more-help-please-55795/

 

so this is a reverant unit?

 

Ye must be sorry he just said mega squirt to me and I'm a noob to the mx5

 

First thing to check - can you connect to the ECU with your laptop?

 

it wont let me connect it says

com 1 is not currently a valid port , this is usually because the virtual serial device such as a usb to serial cable or bluetooth dongle is not currently connected to ur computer.montoring an invalid serial port can cause stability issues on some systems

 

Tried test/detect comm port? Under communications- settings.

 

Ok ecu has being back to reverant and he checked it all out and fixd any problems ( super guy to deal with ) but sadly still not startn I'm out ideas any body cast a thought ?

 

start on stock ecu?

 

Ye it ran before on stock ecu and today it wouldn't car has me puzzled