problems

[fett87]

my 87GN is starting to act up, i keep getting knock at like 13 and 14psi and while on the highway for some reason if it gets up to 5 psi it will start to knock. I dont know what to do here are my mods

te-44 with heavy spring actuator
2800 stall
thunderfab ic
36lb injectors and chip
full exhaust

 

[breiter]

bad knock sesor?

I had a bad knock sensor once that caused a problem like you are explaining. Of course with these cars it could a many different things. Even a loose ground wire. Change one thing at a time or you won't know what corrected it when you figure it out. Good luck.