So still new to megasquirt and i've been having a problem starting my car with my ms3x . i built the ecu myself and it does turn on fine annd even added a fuse on the plug and play harness that i made for it. i set my timing to exactly 10 degrees before i even put on the ecu. i also removed the tps and st sign fuse but once i installed it and started the car, it started but stalled abot 10 secons after. i checked timing and followed all instructions at trubokitty. i used the guied to build the harness. so anyway. any ideas as to why the car starts then stalls? i've also noticed that megasquirt shows my tps at 65% but there is no tps connected. im not afraid to remove components off of megasquirt and follow the guide over at trubokitty to the dot and leave only what is necessary for the miata on the main board. any help would be greatly appreciated.

 

Oh dear.

Did you calibrate any of the sensors? What are you using for a base map?

 

calibrated all sensors, using stok coolant and air temperature. tried doing gm iat but probelm still presisted, went back to puting it stock. still using narowband and tps, well, there is no tps to calibrate, if i do it just tells me values cant be the same. it does give a value though if i try to get current

 

No tps because?

 

Get a wideband and tps. You're gonna need them anyway if you want to tune this thing.

If the issue persists afterwards, upload the used tune and a log.

 

alright. i did get a wells tps4185 with a bracket made of a couple of washers and a stock tps and do have an aem uego i've just left it stock since it is a daily lol

 

That's a bold strategy.

Install the TPS and Wideband. Then tune the car.