HELP WITH VACUUM LINES!!!!!

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Before you shoot yourself in the foot, learn what system does what. Disable the wrong one and the computer goes into limp mode, reducing performance and triggering the check engine light.

All the smog gear shuts off at WOT, so removing it won't gain you any useful HP.

Here's a book that will get you started with how the Ford electronic engine control or "computer" works.

Ford Fuel Injection & Electronic Engine Control 1988-1993 by Charles Probst :ISBN 0-8376-0301-3.

It's about $20 from Borders.com see http://www.amazon.com/ . Select boo...engine/images/mustangFoxFordVacuumDiagram.jpg
 
i see alot of it is egr stuff:shrug: can i get rid of that hole egr regulator? i swaped to 306 and mass air and deleted alot of stuff. and i think i have vacuum leak so i just want to plug off and take out want im not using.


off of the tree there is a line coming off the a/c runs to egr reg. but right b4 it goes into the dash. i dont have a/c so can i get rid of that.:( also theres a line running to somthing on the throttle body not sure on that neither. i just cant win with this car
 
MAybe you should visit the site I posted and get some education. You are just about to kill the vent and heat system by messing with the vacuum line you think is just A/C.

Diagram courtesy of Tmoss & Stang&2birds
Mustang_AC_heat_vacuum_controls.gif


See the following website for some help from Tmoss (diagram designer) & Stang&2Birds (website host) for help on 88-95 wiring http://www.veryuseful.com/mustang/tech/engine/ Everyone should bookmark this site.

Ignition switch wiring
http://www.veryuseful.com/mustang/tech/engine/images/IgnitionSwitchWiring.gif

Fuel, alternator, A/C and ignition wiring
http://www.veryuseful.com/mustang/tech/engine/images/fuel-alt-links-ign-ac.gif

Complete computer, actuator & sensor wiring diagram for 88-91 Mass Air Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/88-91_5.0_EEC_Wiring_Diagram.gif

Vacuum diagram 89-93 Mustangs
http://www.veryuseful.com/mustang/tech/engine/images/mustangFoxFordVacuumDiagram.jpg

HVAC vacuum diagram
http://www.veryuseful.com/mustang/tech/engine/images/Mustang_AC_heat_vacuum_controls.gif
 

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