Can not start when cold

[winreboot]

Can anyone point me in right direction what can it be? When it is cold outside I can't start my nsx. It turns fine but it looks that the fuel pump does not work. I have a fuel gauge so I see there is no initial fuel pressure. I'm using wolbro255 aftermarket fuel pump. When it gets above 0c it starts every time. I ordered the fuel pressure resistor, since my buddy had the same problem in his but I have don't think it will fix it. How a cold weather would make resistor stop working?.... Anyway, did anyone had problems like that?

Thanks,
Dave

 

[NetViper]

Are you using the AEM?

 

[winreboot]

Yes, I'm using AEM ecu v1.11 (I think they just came out with v1.19 firmware).
I did not think of that. Can there be setting for it cold start?

Thanks,
Dave

 

[NetViper]

Yes, I'm using AEM ecu v1.11 (I think they just came out with v1.19 firmware).
I did not think of that. Can there be setting for it cold start?

Thanks,
Dave

For sure. A friend in Atlanta just had his tuned, but not for cold start and he got stuck. That could be the problem.

 

[winreboot]

You wore right

I went to options configure outputs for fuel pump and there was condition made not to start fuel pump if coolant temperature is lower then 30F.

Thanks,

 

[NetViper]

You wore right

I went to options configure outputs for fuel pump and there was condition made not to start fuel pump if coolant temperature is lower then 30F.

Thanks,

Glad I could help.

 

[titaniumdave]

Thanks for the tip, I have been chasing down why my fuel pump won't run for over a week. Found the perameter set at 32 F, reset it to 0 F and it all works! Now I just need to replace my o2 sensors with something that doesn't die every 5 months like the AEM...

 

[midnightgarage]

wow i been trying to figure this out forever. Thanks NSXPRIME!