Toyspeed.org.nz Message Board

by **Makaveli** » Sun Jul 15, 2012 11:12 am

Hi,

I bought a Tom's ECU for my Aristo. I was wondering does it run in Open Loop Mode or Closed Loop or Both???

The reason why I am asking is that my car idling/surging issues have almost disappeared when cold. So perhaps it relies less on O2 Sensor.

Anyone knows???

Cheers

by **Grrrrrrr!** » Sun Jul 15, 2012 11:49 am

Cold running is always open loop as i understand it.

by **RunningRich** » Sun Jul 15, 2012 9:29 pm

Can you take the lid off and post a pic of the circuit boards? Don't $&#$% with anything if you are not tech savvy.

I suspect it is a techtom board but need a pic to confirm.

Richard

OMG so shiny! · by **Dell'Orto** » Sun Jul 15, 2012 9:45 pm

Possibly your old ECU was playing up?

by **Makaveli** » Mon Jul 16, 2012 9:16 pm

Hmm its a Tom's Modified ecu. So they put their own chip / board in it.

by **RunningRich** » Mon Jul 16, 2012 9:32 pm

The last Tom's modified ECU I saw had a Techtom board in it.

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