When I had my '95 Vette (OBDI) I had this software called Tunercat that ran on Windows and with a laptop and interface cable for the diagnostic port under the dash, you could scan and log data in real time while you drove.

Is there anything similar out there for the 2007 and up 2.2 Ecotec's, that have the newer 32bit ECM's like the 2.4 liter has?

I would like the ability to scan and log data on my HHR in real-time using my laptop. I do not want to program or flash, just scan and log.

 

http://www.obd2allinone.com/sc/details.asp?item=obd2usb
This gets you the cord and several scan programs on a cd.

 

I use a Scangauge II in my Miata. I have not tried it in the HHR because I semi-permanently ran the cable up through my dash from the OBDII port. It gives trouble codes and real time info. It displays up to 4 different readings simultaneously on the display. Right now I have it showing RPM's, Intake air temp., water temp., and miles per gallon. I may order a second cable for the HHR, and see what data is available.
Heres a link to the product.

http://www.scangauge.com/?gclid=CK6U...FQOuFQodJj4BRA

 

Has anyone tried this? What does it monitor, and do the free apps do logging of test runs?

 

2 of the programs let you do a dyno if you put all the information in. I can reset the check engine light..

There is about 8 programs on a cd to try for free. the website has demos of most of them or screen shots you can look at.

 

Tom, would you recomend this? Does anyone else have/tried anything similar?