i need help, im not sure what to fix

my car runs terrible under 4ooo rpms, even when i have the peddle all the way to the floor. once it hits 4000 it opens up like it used too. (its def. not drivable) im not the most mechanicly inclined but i am willing to fix it myself, i just never even heard of anything like this before


please help

 

two things. check your TPS and the other thing check for compression on the rotors

 

maybe aux ports are stuck open...

 

that has nothing to do with it, could be running on 1 rotor, TPS, or primery injectors are clogged. That is why after he get to 4000rpm, the secondarys open up and he gets power.

 

exactly

 

what does TPS mean?

 

Sounds like how my engine ran after it had a blown apex seal; I would get some compression numbers.

 

tps=Throttle Position Sensor, but you shoulda been able to find that in the FAQ

 

throtle position sensor

 

thats the first thing I was thinking...get the primaries cleaned...or get new ones...then try to see if thats the problem.

 

Do you happen to have a clip of the car running, or a way to get one?

can you recall any event that may have possibly triggered it (eg. during a hard pull there was a hesitation at high RPM, or an unusual backfire)? or did it just sort of "happen?"