Fuel Pressure Regulator Connection

jakz31

Junior Member

Posts: 11
#16

01-26-2014, 08:44 PM

try disconnecting a few things on the plenum to see if there is a difference, a solenoid in one of the air control valves might be stuck open, you might have your aircon engaged etc, just have a fiddle around, cause theres no way with the throttlebody closed and no auxillary valves open that itll idle that high, theres too much crap on the plenum stock i reckon im making block off plates for a few things when i get the time to go get some 3mm plate for it
Augustus Maximus

Senior Member

Posts: 1739
#17

01-27-2014, 03:08 AM

les_joey_paul;n770013 wrote: If your running a standalone system like nustune then yes I'm sure your car runs fine without o2 But with stock ecu… o2 makes a ton of difference. As for the high idle.. what does your car idle at with all of your accessories on?

I'm running a GM 165 Amp alternator, so any change is hardly noticably. The engine is rebuilt which might help.

Cha iro

enjoy building it yourself.
if it fails, fuck it.
at least you gave it a whirl.
THEBEAST

Senior Member

Posts: 567
#18

02-23-2014, 12:29 PM

i ran a 85 na with stock ecu, block off plates and deletes, never plugged the O2 in, ran fine, got 30mpg hiway, 16 city. no idle or cruising issues. my 87t harness doesnt even have the yellow wire that runs from the O2 back to pin 115. car ran fine.