I just use Hypertech programmer once on my 2009 G37 sedan. It's working however I found one weird thing with ECU programming. As soon as it starts doing "READING COMPUTER", the engine cooling fan kicks in (I heard some noisee from engine bay) and stays on until "WRITING COMPUTER" is finished. Everyone see the same phenomenon?
Should I do programming when engine cools down completely next time?

 

I believe this is normally functionality of the programming sequence to turn on the coolng fans, happened on my 09 as well.

 

Yup. Totally normal and part of the tuning process. Nothing to worry about.

 

Definitely want to hook up with one of these. Great posts about issues and oddities on use and updates!

 

Has the unit been updated to work with 2011 models (or is there no difference)?

 

Yes it has. Works for 2003-2011.

 

Good to hear these answer. Now I feel more comfortable.
I also sent my question to Hypertech tech support yesterday. Here's the answer I got this morning:
"This is all normal, no need to let the engine cool off before programming. The programmer has to unlock multiple computers before it starts the writing process and it is normal to hear relays clicking and the fan to activate."
Great support from Hypertech, too. Thanks

 

Yup they are a standup company. On another note, I wonder if they are going to develop support for the G25, wonder what kind of gains they could achieve there. The other question is there enough demand for them to consider it...

 

Just have to say this... funny how the OP is "bat" and the recent poster is Adam West.

 

^^ haha! Nice catch! Usually the old timers know this. Batman starring Adam West.

 

or adam west in family guy, mayor west

 

I'm Batman!

 

oh f*k me, just received my unit and it doesn't support 09 x coupe...

 

Legz I'll buy it off of you if you'd like. Pm me.

 

Did you update it?