rb25 going into limp mode

[davidg01234]

when my rb first starts itll run just fine and will rev up fine but when it gets warm the idle drops down to around 800 and it goes into limp mode and wont let the rpms go above 2k! its getting very annoying. the maf is good but im thinking it could be the tps. could the tps cause it to go into limp mode?

[davidg01234]

?? anybody have an idea?

[2.5T_/<ouki]

Have you tried pulling the codes yet? And how did you test the MAF?

[davidg01234]

Have you tried pulling the codes yet? And how did you test the MAF?

i have no way of pullin codes cuz my ecu has no led or the little thing you twist. also yes the maf volts are fine. which color wire on the tps plug is the power, signal, and ground wire? my plug has 3 wires, one is light green, the middle one is yellow/blue, the last one is purple/red.