Tuning file installation

[Dantheman1540]

Yessir AC Delco, part number: 19330121[/QUOTE

Just curious I don't really have any experience with different MAFs but I have heard people run different ones before.

 

[Sam Harris]

For the right reason I’d sure be happy to run a different MAF. But at the moment, I just want to get her as clean and happy as possible, to get this tune installed and running well.

 

[BlackBearPerf]

When installing the tune, my instructions say to turn the ignition off, and then the AutoCal will start a countdown timer before I can resume the tuning, or start the truck.

My tune file was flashed, and as soon as it says: Ignition off NOW!, I turned off, and removed the key. But it’s never started a timer, and has been just sitting on the “Ignition off NOW!” Screen for several minutes.

Is this normal? Can I start the truck?

Give us a call 877-809-4070 we would be happy to help.

 

[BlackBearPerf]

When installing the tune, my instructions say to turn the ignition off, and then the AutoCal will start a countdown timer before I can resume the tuning, or start the truck.

My tune file was flashed, and as soon as it says: Ignition off NOW!, I turned off, and removed the key. But it’s never started a timer, and has been just sitting on the “Ignition off NOW!” Screen for several minutes.

Is this normal? Can I start the truck?

After it says ignition off, turn it off, uplug the AutoCal from the OBDII port and then go ahead and start the vehicle.

 

[Sam Harris]

After it says ignition off, turn it off, uplug the AutoCal from the OBDII port and then go ahead and start the vehicle.

Thanks, that’s what I’ve been doing, but including a 2:00 wait. I’ll follow your recommendations. Much appreciated!

 

[Sam Harris]

Give us a call 877-809-4070 we would be happy to help.

Appreciate your reply. I also emailed, so already got a response there. [emoji106]

 

[BlackBearPerf]

Appreciate your reply. I also emailed, so already got a response there. [emoji106]

Right on, happy to help!

 

[Rocket Man]

I always have my driver door open so RAP goes off or else the Autocal doesn’t recognize the ignition was turned off.

 

[Sam Harris]

Still trying to get this dialed in. I replaced the MAF, then cleaned the Throttle Body, next Justin says I may have a fuel pressure issue, since she’s leaning out with the tune. Need to check the pressure. Assuming it’s not around 55-60 at idle, guess that’s a replacement fuel pump. Don’t think there’s likely anything else to do..?

Also wondering if I should upgrade the pump if I need to replace it anyway, for future HP growth.

 

[Rocket Man]

Still trying to get this dialed in. I replaced the MAF, then cleaned the Throttle Body, next Justin says I may have a fuel pressure issue, since she’s leaning out with the tune. Need to check the pressure. Assuming it’s not around 55-60 at idle, guess that’s a replacement fuel pump. Don’t think there’s likely anything else to do..?

Also wondering if I should upgrade the pump if I need to replace it anyway, for future HP growth.

Stock pump is good to about 450 HP so unless you're going with twin turbos you're fine. Superchargers will come with a pump as part of the kit if needed. Yours is a 2003 so there isn't a fuel filter under the driver seat inline is there?