I had two katech ported tb in a row wig out on me and could no correct the issue in the calibration. issue was corrected by installing a different brand. still have no idea why as the katechs work fine on a lot of cars. just a weird thing.

 

My 103 works fine, 2016 z

 

Chevrolet spent a lot of time and money engineering the car to run well. When you slap a bunch of "allegedly" go fast products, not necessarily coordinated to work well together, should you not expect to have problems? When you are done tinkering, let us know if you have made improvements in the car.

 

Surely you aren't suggesting that their engineering is perfect or can't be improved up? They did what they could within a certain budget. Plenty of parts are better off with the aid of aftermarket improvements.....no different than any other vehicle...

 

Haltech? Everything the car does is the responsibility of you, the owner of the Haltech, and all that it tells you. The answer is in the computer and diagnostics you would apply as owner overall to the vehicle.

The first issue I see is you rely on other people to do these diagnostics. This is not going to make for a proper experience because you will always be in the dark about your own property. My suggestion is to stop relying on others and lrn2control your own vehicle, else, remove any/all parts which you do not understand and do not wish to lrn about.

The frank problem here is lack of ownership, you giving the car to others and asking online how 2 solve vague specific problems which have to do with the combination of parts you have chosen without knowledge of what they do / are doing.

 

never had an issue, where are you located?

 

 

i went through this for 8 months finally figured it out, its not in the tune! i had 6-7 tuners all across the nation look at my files and make adjustments nothing made a difference.

You have to make an adapter plate with multiple screw holes for the throttle body and basically rotate the throttle body so the blade is sitting at a different angle. Its turbulence behind the blade trying to close it, you just gotta rotate until that problem goes away.

 

^^^ If the above is correct (at least, for your car) then there really is something wrong with the piece you put on being made possibly generic for the brand and model of car but having to be "adjusted" by drilling all those holes!

In which case, SFMC's post begins to make some sense---not that one can't "improve" on original engineering, but it may take extra effort to make different mfr's components
compatible with each other.

 

i agree, and thats what i did! maybe i wasn't able to clearly explain wat i did ill try again.....im moving a lot air through the throttle body with the stock blower (more then anyone else that i know of) so when that air travels through the throttle body at wot, because of a certain angle or shape thats right behind the throttle body (snout) the air chooses to go either above or below the blade, and in my case it was an uneven air flow (turbulence) so it was causing my blade to be vacuumed shut (or at least trying, while the dc motor in the throttle body was fighting it to remain open). so there r 2 solutions to fix this: 1 getting a stronger dc motor to fit in the throttle body (which wasn't an option or at least a very difficult one) and 2 trying to rotate my throttle body to a point where the air thats being split by the blade gets split up more evenly and isn't heavily leaning to one side...and this exactly what fixed my issue...in order to do that i had to make an adapter plate that sandwiched inbetween the blower and throttle body. i put multiple screw holes on one side of it so i can rotate the throttle body to different angles hoping to find a sweet spot. and it worked!

side note this isn't a kateck or nick williams issue because i put the stock throttle body back and it did the same thing, but now im on my kateck 103 (which i was having problems with before) rotated to about 30degrees and problem solved!

hope this helps others with similar issue as i dealt with this issue for 8 months! almost caused me to give up but finally got it!