Hondata

I ended up disconnecting the vacuum line from the throttle body so the purge vent is open to atmosphere. Just don't tell the EPA! They might get mad lol

Cool thanks!

I have an IAT sensor from a 96 Civic and I was wondering if I can use it on my Si? I know the Help section says to use an RSX-S sensor or a B series bolt-on style sensor but I would think the EK sensor would work too.

Thanks,
Frankie

That sucks :( maybe I'll start with the throttle body since that is directly connected to the EVAP system. If that doesn't help I'll move onto the harder-to-swap parts. Thanks for the insight! So it has nothing to do with anything in the tune?

I ran the FP on my 07 Si for about 1000 miles without any hiccups. I changed out the IM, TB, and injectors, switched maps, and now my tank builds a lot of pressure. I made sure the EVAP system is enabled in the tune and the EVAP hose to the throttle body has vacuum to it. Now, either my tank is ...