so i allready searched the forum and tried what i could find.
i have an 04 6spd with almost 80k on it, i was just driving and all of a sudden it started jerking and revving up and down at 3k. i shut it off let it sit for a minute then restarted it, had no gas pedal, gimped it home on the backroads.

once i was home i lookied up on here for some help, i disconnected the battery and checked the omp. omp was good as well as throttle body. reconnected the battery and started it. no cel but the traction control with the car and squiglies was on. i had a gas pedal though so i tested it out, as soon as it got over 7k it did it again, this time revving and jerking worse, i was close to home so i flipped it around and while still running lost the power brakes... if i shifted and kept it under 3k it would jerk for a second then it would start...

idk what it could be but i really dont want to go to a dealership... please help asap this is my only car...

 

ok any help would e useful. so i let the car sit all day with the battery disconnected, came home hooked it up, no start... did the rake pedal 20 time thing, didnt start. checked all my fuses and connections tried again, it started ut immediately went into rev to 3k and dump over and over...

when it the key sits in the on position my dsc light is flashing at me and if i wait 5 or 10 second the cel will start flashing at me...

sounds like im gonna have to take it to the dealership unless someone has any ideas?

 

i checked the maf and it looked fine. how do you check the tb? from what i was reading some people were saying omp on other posts.

 

i pulled it out made sure it was clean and intact and fully connected.
how do i check those?

 

The only way to lose the brake assist is to have a vacuum leak - that would also make the engine jerk and rev......

Check the vacuum line and its check valve.

 

the thing that makes me think it isnt vacuum is that it only did it that one time, so i was thinking vacuum pump? but it seemed to be working today...

 

There is no vacuum pump, the servo gets suck from the upper intake manifold.

Are you sure you lost the assist?

 

ya i had no booster, it was full manual brakes, oldies style haha