Quote:
Originally Posted by ohhawk
* When you get the custom tune are you in essence receiving an overall performance enhancement of which a number of settings are changed and enhanced?
* Are there specific things you need to ask for when having this done?
* Does this void the GM Warranty if you still have one in affect?
* Thought I read some keep their original unit and purchase a new custom tuned one and others simply send theirs and have it updated and returned.....pros/cons?
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- Yes. I had my 6 speed done by Joe when I lived in Vegas. He used HP Tuner SW. A few of the things I remember his tweaking: increased injector pressure, timing, temps at which the cooling fan comes on and I think it comes on at the high speed only and bumped the speed limiter up "a little." I know I'm missing a few things but it certainly made a difference...MPG went up a little too.
- Warranty is a gray area. Someone told me that the average dealer doesn't have the ability to see if the ECM has been reprogrammed. Even if they had the ability to download it, could they recognize the changes? The tune Joe gave me was nothing radical.
- My concern is taking the vehicle in for a warranty claim and they have to either replace the ECM or reprogram it and I'd loose what I have. When Joe tuned mine I got the factory tune and the tune he designed on a thumb drive. Since I'm keeping my truck for the long term, I'm thinking of buying the HP tuner software begin to familiarize myself with the process. Being a old carburator guy, I was amazed to see Joe do his magic.
- I had similar issues as you when I bought my truck. It had 34 miles on it when I left Greenville SC with it. A week later I pulled into my Las Vegas driveway with 3400 miles. A week or so later Joe was in Vegas doing a tune on SSR that recently had a true dual system installed and a blower. This was the first time I met him and he told me to pull the fuse that keeps power to the ECM for 10 minutes. Can't recall the fuse number but if you run a forum search you'll find it and what it does to the ECM. The main thing this does is it resets to the factory high octane fuel curves (advanced timing.) In my case it made a difference. I got the tune a few months later.
