Can't Rev past 5,500rpm under WOT

[DTMbimmer07]

Been having this problem with my car for a while now. Car has a new TPS set correctly, im also running MSD blaster SS coil, with magnacor 8mm wires, with a new distributer cap and rotor, 19lbs injectors recently flow tested, new FPR.

Every time i get on it full throttle the second i get to 5,500rpm it acts like its hitting rev limiter, but if i back of the pedal slightly it will rev all the way to 6,900(shitty dinan chip). Anyone have any ideas to what this may be?

[jlevie]

Have you checked to see if the WOT signal from the TPS is present at the DME connector?

[RGCintha29073]

^ +1 my car was doing what u described but the TPS was bad. Replaced and good to go. Did u check it after you replaced it to make sure that it was working correctly?

[DTMbimmer07]

what pin is it at the DME conector?

[DTMbimmer07]

and i ohm'd it out to what the Bently manual says. so it should be working properly.

[jlevie]

The switch could be working properly, but the signal may be be reaching the DME. Get the car's wiring diagrams from http://wedophones.com/BMWManualsLead.htm and check at the DME connector.

[Cabriolet]

what engine do you have?

Every time i get on it full throttle the second i get to 5,500rpm it acts like its hitting rev limiter, but if i back of the pedal slightly it will rev all the way to 6,900(shitty dinan chip). Anyone have any ideas to what this may be?

A real dinan chip is in no way shitty. A. is the chip for your DME and B. are you sure it is not for an eta engine?

[DTMbimmer07]

Just put in my Built Seta motor. its deffinetly not a eta computer is a 153 and i used it on my b25 before. it started doing this a few months before i swaped the motor in. I'm just now getting around to fixing it now because i cant actually get on it and feel the difference with my new motor.