I had my UTEC tuned last week at around 85 degrees. This morning, it was 55 degrees. It took 4 tries to start, then it went into limp mode until I reset the ECU. The car has 600 cc DW's and a vortech. Is there a temp correction for start up?

 

Not much, the ECU is in control on start up so Utec wont interfere. As long as you 0 column is scaled right then it must be something else. I have driven my car from 100F to 0F and no problem with cold start.

 

also, its not outdoor temp, its AIT temp. So unless you logged that when you tuned, you will have no idea what to set the temp correction offsets to.

 

did your tuner adjust the stock injector size to the new injector size in the parameters of the utec?

 

What was the CEL code?

 

were do you do this? .....not in my software

 

/\ You cant.. with ver 2.8 the only way to scale it is through the 0 column...

 

So for posterity, I think the problem it had starting that day was actually the beginning of my throttle body taking a dump. Since then the throttle body codes have come up 4 times.