PCM Tune for '03 Suburban

[O4L]

Hey guys, I have an '03 Suburban that has 218K miles on it with the 5.3 Flex fuel engine.

I really like the vehicle except it needs more power and I have been chasing P codes related to the Drive By Wire Throttle System forever. I posted my "Reduced Engine Power" troubles here.

https://www.okshooters.com/showthread.php?175340-quot-Reduced-Engine-Power-quot&highlight=suburban

I don't know anything about tuners or PCM tunes except that they do exist.

I would like to delete the codes that keep causing it to go into "Reduced Engine Power" all the time if possible, and give it a little more performance and/or fuel mileage.

Any information or suggestions would be appreciated. Thanks!

 

[AllOut]

Contact Justin at Black Bear
[email protected]

They are the who's who of LS tuning and they have a couple options to choose from
It makes a world of difference to have an customs PCM tune!

 

[travisstorma]

Contact Justin at Black Bear
[email protected]

They are the who's who of LS tuning and they have a couple options to choose from
It makes a world of difference to have an customs PCM tune!

Exactly who I was going to recommend!

 

[AllOut]

Have them take out the torque management and variable timing in your tune. (Common in most customs tunes)
It won't add a lot of HP per say, but it will allow your truck to use all it's HP that it already has. Plus raise mileage a bit in the process. You'll just be taking out all the "restrictions" the motor has from the factory.

 

[O4L]

Thanks! I checked out the website.

Did you use the Traditional Tune, or the Scan Cable Tune?

What about deleting codes or making them a "Non-error Code"? Does anyone know about this?

 

[AllOut]

The Scan Cable and AutoCal are the better options. The Traditional works fine but the tunes isn't "fine tuned" to your truck like the Scan type. They are a little more $ but worth it...
As for you error codes. It depends on the code or what's causing it. If its a hard part that messing up then it'll probably have to be fixed/replaced. Sometimes things like the redundant O2 sensors and stuff can be programmed out to not use anymore.

 

[oneton]

I've had excellent results with Nelson Performance in San Antonio. There is a ton of options to choose from and they can program for larger injectors etc... Mail your computer in to them, tell them what you want. The turn around for me was less than a week.

Bill

 

[O4L]

Thanks for the help guys!

 

[jarrettszcz]

Thanks for the help guys!

http://www.trifectaperformance.com/

I'm a dealer if you need to shop around

 

[gfercaks33]

If you want local call Bo at aps he's a stand up guy and knows his stuff.runs a full shop and also does tuning and dyno services.