will not rev past 2500

[eric p]

i put a '99ls into my '00 civic. starts and idles great but will not rev past 2500 rpms. wont rev in any gear or neutral. need help. thanks

 

[George777]

Any CEL? Sounds like it's in limp mode.

 

[bighavic]

Most likely Limp mode but more possible ecu wiring not done right. Limp mode should at least rev up to 4500.

 

[eric p]

i was thinking some kind of limp mode also. i just got done looking at a different wiring diagram and i may have some wires from the dist wrong, will check in the a.m. thanks