Marv02

If I remove the EGR tube that runs from the Exhaust manifold to the intake manifold where it hook to the EGR temp swicth what will happen..

Will this throw a code or what I will keep the EGR temp swicth in place hooked up if needed just caped off.

The reason why I asked this I using a small hard line tube as of now I getting a pulsing ticking sound from the small tube I just want put back on during smog check every 2 years here in Cal.

1986 Vett.

vetteoz

Most likely

still throw a code because no exh gas flowing past switch

Marv02

Thanks I need to Fab up a larger tube I guess to get rid of that pulsing type ticking sound at idel.

If I put a screwdrive on the Plentum and the other end to my ear thats where the sounds coming from I checked and gone thought the valve trian this is the only thing I could be.

The tube I have on it about half the diameter of the stock EGR tube.

vetteoz

Shouldn't be any noise ;
EGR does not operate at idle so no gases are flowing in the crossover pipe ( unless your EGR valve is leaking )

Marv02

Okay learned something New Thanks.