Thread: 98+ SR20DE vacuum removal (to 95~97 standards)

Yeah i have the same stuff, but i had to cut a bunch of vacuum lines because i couldn't get a good grip on them.

Oh and I think I figured out there are only 3 vacuum lines. 2 on the manifold 1 for fpr and the other on the opposite side. Then 1 on the TB. Where should I put what and what should I tie the boost gauge into. Wastegate to the TB? BOV to the manifold with Boost gauge tied in? That sound about right?

So the one line off the solenoid that the evap service port connects to has a line that goes to the intake manifold. On the 95-97 that would be part of the charcoal canister correct? the line that comes off it is to big for the Manifold bung. Should I just get a new line, tighten that one down? or remove it all together and cap it off?

Disconnect it and leave it hanging, first. See how the car runs. It's not vacuum line, so don't worry about idle issues. I'm pretty sure you want to leave it vented as the other line of the 3 way you speak of runs to the gas tank.

alright cool thanks

So since this is done I thought I'd update it. I am getting some code for emissions. I'm not sure what it is but there is one. And I got some idling issues I gotta work out also so I duno if this has anything to do with it :/

Are you running with a 95~97 ECU yet? If you're running with a 98+ ECU right now, that's your problem.

no i got the 95-97 ecu, car is all turboed and done but thats the only CEL I got, said something like manifold differential pressure sensor or something? code is p1400 if anyone knows what that is?

How's the car running?

P1400 is the EGRC solenoid valve. If you have the EGR delete on the ECU, this should be irrelevant.

Page EC-347 in your FSM covers the P1400 troubleshooting. I'm pretty sure the EGR delete resistor mod cancels this out. I'll let you know when I get mine finished and running. (I have the rear 02 and EGR delete resistors)

Yeah i have the deletes also rear 02 isn't coming up, he said it was hit and miss with some cars though. there anyway i can get this off, i know he said in a thread when i searched plug the EGT back in but I have no idea which one that is?