Wont Rev Past 4k

[97Eclipse99]

Hey i got an 1997 Eclipse RS 2.0 Its a Manual and it has only 30k on it, i had a AFC in it and a intake with a exhaust system going straight to my engine bought some GReddy headers and it was running great then my engine got messed up so i changed it and changed my transmission and i put a 1999 into it and it was still going good until the AFC wires burned but now the car wont REV past 4000 RPM i mean when you start it , it will but when it goes under 4000 RPM it wont go past i mean i taped the AFC wire that burned and i change the Sensors on my Intake Manifold im really getting tired of this car i mean i spent so much money but i still love it if anyone could give me some advice that would help alot ohh and i took like my Power Steering off and my AC its really no use.

 

[loreak]

when my alternator fried the car wouldnt rev past 4k, lights would come on and it would hit like a rev limiter at 4k

check what voltage your alternator is putting out, that particular time it was pumping out 20v, the voltage regulator crapped out

 

[97Eclipse99]

but the problem was i didnt change the alternator but ill check it and exchange it and see if its that the problem thanks for answering my questions