Diablosport Forums

Here's a fringe question for the experts.

I have a Kenne Bell 2.8L supercharger installed on my 2010 Challenger SRT8 with a KB canned tune, loaded via the crippled KB7135 shipped with the blower. We all know the Golden Rule: Always return to stock before going to the dealer. My predicament is, I doubt my blown Challenger will even start with a stock tune installed.

Should I be worried that I can't return my PCM to stock before going in for an oil change or minor non-engine-related TSB? One would assume that seeing the monster blower bolted to the block would make them think twice before flashing, but ... you know ... Ass-U-Me.

Thanks!

- Dave

ps. FTW: http://picasaweb.google.com/ViperGeek/2 ... lengerSRT8

I would have a serious chat with the service advisor or technician and make sure they do NOT in any way attempt to flash the PCM, period. if they do, you'll have a bunch of hoops to jump through and the car wont move.

You are correct, restoring the stock tune is not a good idea in this case. If they are going to give you a problem, it wont be due to the tune, it will be due to the blower under the hood

See Mike, this is why you guys need to make caps like the one I showed you. I'll let you have it for molding off of if you need it.

Thanks yet again, Mike and Mike. I'm pretty comfortable with the service manager at the two Dodge dealerships near me. I'm just not as confident about the wrench monkey who actually gets to work on my car.

I like the OBD-II cover. I'll take two!

- Dave

your obd2 port is held in by 2 screws.
pull them out, and hide the port up under the dash, so they cant get to it

The cover is a $4 MSRP part ($2.65 wholesale) at any GM dealer, part number 12146933. I'm not sure where to get the sticker, it came on mine.

The cover is a $4 MSRP part ($2.65 wholesale) at any GM dealer, part number 12146933. I'm not sure where to get the sticker, it came on mine. If I can find them, I'll probably pick up like 25 or 50 of each and sell them paired up.

Hi Dave,

I would be very, very concerned about a trip to the dealer. Most garage techs are going to do what they normally do, connect to the computer. Once they connect to the computer there are some updates that download automatically. You have no option. I forgot what type of updates are automatic.

I will not take my car to a dealer for that (and other) reasons. If they do connect it;, they are going to say "Oops. Sorry. That is our standard practice. Sorry. Bye." You are going to have to talk to the service manager, and ask him to bring the tech out to talk to you before he takes the car back. Then, I would watch him like a hawk. If you know the service manager well enough, you can talk him into letting you go back with the car. I would not drop-off the car. Taking a few hours off work so you can babysit it will be much more enjoyable than, "Oops. . ."

The PCM updates on a SC'd car is a problem. Read Speedy's thread about this on the other forum that you are on.
Edit: It wasn't the other forum. It's on this one:
http://www.diablosport.com/index.php?na ... ic&t=35828

I would be sure to let them know you have a S/C under the hood (in case they don't open it). They should know that means a custom tune but I would tell them regardless not to upload anything. There should be no issues with any warranty work unless it involves the powertrain in which case your warranty wont be honored (most likely). There are some dealers out there who will overlook such things unless you've blown the motor, tranny, driveshaft, diff or rear axles. Regardless, an S/C won't affect anything (warranty wise) other than the drivetrain, by law.