it's done, glens turbo results

[Russellb]

No A/C That make's Life Easyer
OK TPS is Throttle Postion Sensor
proportional is one that give you a reading from 0 to 100% of throttle opening the STD one on the NA6 is a switch has a switch at Idle and a Switch a Full Throttle
Just unplug all the Std wiring plugs on the engine and run a new loom
One other thing will the microtech run the STD ignitor? ( IE does it have dwell control?)
$200 is cheep to get someone else to do it and then when it doesn't work
it's there problem
It took me 8HR to get the P&P loom made,In And running
but now I can plug it into any NA8

[Sean]

The microtech doesn't need a cariable resistance TPS, it will run fine with the standard switch type - There are at least 5 MX5s I can think of in NSW running Microtech with switch tps.

Now that you're not running A/C etc, I'd do a direct wire of microtech and not worry about the stock ECU.

The Microtech has dwell control and will run the stock ignighter, or any number of aftermarket ones.

I made mine as a plug in with a seperate loom for the injectors (changed to sequential), it will run fine on batch fire, but I found we could get it to idle much better (with less fuel too) with the sequential.

As others have said $200 for a proper wire up is an absolute steal.

[Sean]

I could probably get you a loom made for plug in for about $100 by a guy up here, but you'd need to have a plug (or a stock ECU to steal a plug off).

May be a bit more for a few connectors if you want to have it run sequential.

[glen73]

ok, when i bought the ecu i got a heap of wires with it. they are all tagged ie injector 1 etc. it plugs into the micro ecu. all i thought i had to do was cut and reconnect the old loom into the new one. when i said $200 for a install i meant just a \"PiggyStyle\" install. now im getting confussed again which isnt hard to do

[Sean]

ok, when i bought the ecu i got a heap of wires with it. they are all tagged ie injector 1 etc. it plugs into the micro ecu. all i thought i had to do was cut and reconnect the old loom into the new one. when i said $200 for a install i meant just a "PiggyStyle" install. now im getting confussed again which isnt hard to do

Yep all you need to do is connect them to teh corresponding wires on teh stock mazda loom AND UNPLUG THE STOCK ECU. The signals from the stock sensors may read inaccurately if you leave both ECUs connected.

I know it sounds real easy, afterall I did it just take your time and if you're not sure check it twice, the last thing you want is to get it wrong...

What I did was wire it all with the full length of wires (as supplied by microtech) and then when it fired up I went back and shortened/tidied them up into teh adapter, so it was neat. Just left the extra length first time around incase I needed to change something


If you are lazy - It will look like this...

[Casey]

And I just finished a P&P autronic into my NA8 Clubman

How did it go?

[glen73]

If you are lazy - It will look like this...

looks a bit scary, anyway i have tomorrow off so no doubt all you helpful souls out there will be hearing from me. hope me bov turns up today then i'd be really pumped

[glen73]

ok, on the fuel inject diagram it show 1 wire for each injector from the micro sheet. on the factory ecu sheet it show 1 wire going into 2 then onto injector 2 and 4. other wire splitting into 1 and 3. now should i run injector wires 2 and 4 from the micro into 1 wire as shown from the factory ecu sheet? i hope you understand this.

[Russellb]

Run new wire to the injectors so they will fire sequential

[glen73]

ok that makes more sense. other than that i think i should be right. im still a little worried once i connect all the wires that is required from the microtech diagram then there is going to be about 24 wires left over from the old ecu.

[Sean]

ok that makes more sense. other than that i think i should be right. im still a little worried once i connect all the wires that is required from the microtech diagram then there is going to be about 24 wires left over from the old ecu.

They will include
ISC Valve (if using less than an LT10s)
Check engine light
CAS Power (depending on how you are choosing to wire it)
AC Relay
PS Press swith
Clutch Switch
Neutral Switch
Cruise control
AFM
Plus a bunch of grounds.

There are a lot of wires in teh loom that seem to be included even if your particular car doesn't have that function, mine had AC and PS wiring despite never having either fitted, I assume it's so they can just make 1 loom for all MX5s for economy of scale.


I simply laid out teh wiring diagram of the microtech along side the stock one I sent you and matched it all up. There was plenty of spare wires like you say.

[glen73]

if you dont understand it it's silly or F%^ked. after staring at the sheets for hours while i can connect the injectors,ign,oxy sensor and crank imput. is the fuel pump relay=main relay? because according to the diagram there is no fuel relay? also the T.P.S., where does this connect to, on the diagram it shows 3 wires coming off the throttle sensor(mt) and then another 3 coming off the throttle sensor (AT). and from the micro tech 1 wire is supposed to cover them all? i feel like the little man in my signature constantly running around with my hands in the air ahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh


oh and i almost forgot my favourite one WTF is 5 volt!

i have now started ringing the gutless auto elects trying to find one that will do it. the only thing they know how to do is alternators and starter motors, if it involves anything else they have no idea. and they call themselves auto elects.....HELLO


ps....if there are any auto elects on this site no offence directed at you

[Sean]

is the fuel pump relay=main relay? because according to the diagram there is no fuel relay?

You need to run the Green Fuel Pump wire from the microtech to the Light Green wire on the fuel circuit opening relay. This overrides the safety switch in the AFM, the Microtech has it's own safety and will shut down teh fuel pump relay after 10 secs of 0 rpm.

also the T.P.S., where does this connect to, on the diagram it shows 3 wires coming off the throttle sensor(mt) and then another 3 coming off the throttle sensor (AT). and from the micro tech 1 wire is supposed to cover them all?

You only use the one for MT (unless u have an auto?)
5 volt is the power to the TPS.

TPS connections:
Red Mazda goes to Blue Microtech wire (5Volt)
Black/Lt Green Mazda wire goes to Brown Microtech wire (Gnd)
LtGreen/White Mazda wire goes to Grey Microtech wire (Signal)

This is from the workings I did when I wired my mirotech and 2 others into MX5s, so it has worked for me 3 times, as long as your car is wired same from teh factory (should be) and microtech have not changed thier wires or colour coding you should be right with this, but as they say - All care, no responsibility

[glen73]

you see when its put in laymans terms its a lot easier. thanks alot. now for the other 18 wires
no really thanks i appreciate it.

[glen73]

hi, is there difference between crank angle sensor 1 and crank angle sensor 2?