Car acting up at WOT

[Intothenight19]

Ok, so I've been tuning my cars MAF-T with my new TO4R, Im only running 10psi off the wastegate and when I get into wide open throttle it will boost real hard then when I shift the rpms will fly up by themself. I have no idea why, any answers as to what this could be? After dealing with the car blowing off intercooler piping at 10psi now like I said, just before redline when I shift the rpms shoot up by themselves, is my clutch letting loose? Is the maf-t not tuned properly? What could it be? Thanks everyone...



C-

 

[Nick M]

Throttle cable sticking?

 

[Intothenight19]

No its not, thats the weird thing, it feels like it is sort of but then it feels like my buddies car when his clutch was letting loose...hmm?

 

[Intothenight19]

How can I adjust the throttle cable to stop it from sticking if it is indeed sticking? Because I think it might be...Hmm......?

 

[Nick M]

It could be bent, or rusted. With a slipping clutch, the RPM will increase, and vehicle speed will not. That is different than a stuck throttle.

 

[Intothenight19]

Yeah my throttle is definitely sticking, how can I alleviate this problem?
Thanks!!

 

[Nick M]

Replace it, or clean it and lube it somehow, if it is dirty.

 

[Intothenight19]

Ok, the throttle almost feels like its going into cruise control mode at WOT. The pedal just sticks to the floor, its weird as hell. When I accelerate to WOT and then shift the rpms just go nuts. It seems like as soon as there is a fair amount of boost pressure it keeps the throttle body stuck open? Hmm.. I removed cruise control a long time ago but I wonder if any electrical connections could be causing the computer to keep it open. But that wouldnt make sense though because of the cruise control cable...This is weird and very annoying. I lubed up every possible spring/ moving linkage, checked the pedal for an obstructions, re-adjusted the throttle cable all the way back to the tightest setting with the bolts. Im not sure whats going wrong, so I'm going to take apart the linkage, clean the throttle body... Shit I even cleaned my ISC.... Any ideas guys I'm F'n clueless??.......

 

[starscream5000]

Clean out the inside pretty good. Take the throttle plate out and dissasemble. Clean out the hollow points where the shaft that holds the throttle plate go though. It may have developed a decent amount of carbo deposit inside it. You may also want to take your throttle spring to an auto parts store (like napa) and check into getting a spring that's the same size as your stock one, but slightly stiffer. That should help in assisting the throttle plate to close better.

 

[suprashy]

Any codes?

 

[starscream5000]

Well it looks like he posted up another thread about this in general discussions...:3d_frown:

 

[Intothenight19]

Sorry guys, I'm not trying to take up bandwith, just pissed off in general about this entire situation... I havent taken the throttle plate off or anything else, I don't know what the hells going on, every time I push the clutch in the rpms just shoot the hell up.. I am getting fed up here.... Im not throwing any codes, and the car runs perfect aside from the fact that the throttle goes crazy... Any ideas guys? I appreciate all input...

 

[starscream5000]

Try some of our suggestions first before you decide to get a new throttle linkage, and post up the results.

 

[Intothenight19]

Ok, will do.. Thanks man

 

[Intothenight19]

Ok, so I cleaned out the throttle body, checked all the linkage, lubed everything that moves, and came to the discovery that I have no bottom bushing on the linkage spring. I see a white top one, but no bottom one, and Im thinking thats causing the sticking. Any suggestions? Thanks

 

[madsupra88]

:icon_conf

Any codes?

 

[Intothenight19]

No codes... Im just going to go direct throttle cable no more bs linkage....