SN95.0 PROJECT, Harness Help

Heres your source for 86-93 Foxbody & 94-95 SN95 wiring diagrams + other useful info.

Mustang FAQ - Wiring & Engine Info

If you have to pass emissions tests and/or youre still running the factory catalytic converters,the smog system components need to stay on the car.Most guys tend to remove the smog components,egr components & the evap components(charcoal canister,purge valve) However,if youve still got cats in place,they need fresh air from the smog pump in order to work.If the cats are ran without this air,they'll get clogged within a short amount of time.
The egr system actually helps your car more than it hurts it.The ecu leans the fuel mixture & advances timing when the egr valve is functioning.It lowers combustion chamber temps which reduces the chance for detonation.
If you remove the purge valve & charcoal canister,youll smell gas fumes constantly because the vacuum hose you removed from the canister will be venting fuel vapors into the atmosphere.That vacuum hose cannot be plugged because thats how the fuel tank is vented,out of this hose.

E36x302 said:

im more looking to remove the bulk of this harness

Click to expand...

Oh I see.Unfortunately Im not very savvy with the EECV system.The EECIV system,on the Foxbody,is easier to remove things from & it not cause driveability issues or a check engine light.Some components (i.e.-egr valve & harness)can be removed from the engine then turned off in the ECU by a tuner,so driveability issues wont start & the cel wont come on.When you say EEC,are you referring to the EEC relay?? If yes,you need to keep the EEC relay.If you were to remove the ccrm from the car,you'd still have to wire all of its relays up seperately for the car to start & run.I believe the ccrm was added to the 94-95 models so that all of the relays would be located in one spot,instead of having the fuel pump relay under the seat,the eec relay behind the kick panel,etc etc.