327_TPI_77_Maro

iTrader: (8)

Hi guys I have a TPI swap that is running great but I think I hooked the vapor canister vacuum source up to the wrong port. I used a full manifold source on the rear passenger's side of the TPI manifold as the vacuum source supplied to a vapor canister that I got from a TPI parts car. Is the vacuum source for evap actually supposed to be the throttle body? If so which port.

Also where is the EGR vacuum source supposed to be? I used the small nipple on the bottom of the throttle body as the EGR vac source.

Thanks

Steve

Euro88Iroc

If I remember correctly,both the EGR and EVAP vacuum were hooked together to the vacuum port on the throttle body. That's on a '88 LB9. EGR is long gone but I've hooked the EVAP line back to the TB. Check the underhood vacuum line routing sticker for your specific year as there are not all the same (should be available on this forum somewhere).

Johnnygeek

on the throttle body
The pvc goes on the top vent, it is not a vac line the vac for the PVC system is on drivers side betweene the runners

Then the evap can goes on the bottom full vac line.

z28romance

vac hose routing diagram.

JeffroZ

are the red numbers the line sizes?

rarebmx

iTrader: (6)

Yes