How hard is it to de-EFI my 1991 LX ?

[ExplodingGopher]

So how hard is it to de-EFI my 1991 LX. A carbed 466 is going in it this month. Do i just pull out that grommet on the passenger side kick panel and yank the wires out, or is there more involved like taking the dash apart (oh god no). I still need to keep headlamp wires etc. because it will be daily driven in the summer. thanks.

 

[NosPony]

Yea u pretty much have it. Take the harness of the computer and trace it all over the engine compartment and unplug. That is what i did and no issues with lights and such. Also might want to give tall valve covers a look at if u are using them on a BBF. They might rub the brake booster. Friend of mine converted to a manuel brake set up for this reason.

 

[crazypete]

Actually, one of the EFI connectors goes into the chassis harness if my dusty memories of 3 years back serve me correctly. Plus be aware that the AC solenoid has some eec component so that takes some wiring and you'll have about 25 pounds of wire in there (thats a lot) and most of it is now extreneous.

Your best bet IS to pull the dash, cut the harnesses all open and trace wires, keeping only the ones you need. You can reduce the 3 huge looms of wire to a single thin loom. Lemme tell ya, makes tracing wiring faults wicked easy.

Also, the FP relay requires eec input unless you tie the hot and and trigger to key-on. This is if you are still using an electric pump and such.

 

[ExplodingGopher]

I actually just got finished pulling out the main harness from the passenger kick panel. Surpisingly easy. I really dont need anything from the harness anyways, im running all new autogauge gauges, 8,000 rpm tach, GM fuel gauge from autometer, holley black elec. fuel pump hooked up to a switch box, prostreet fuel cell, the whole shebang. Thanks for the info, and i'll keep everyone updated on my progress, the swap should be done late this month or sometime next month.

 

[NosPony]

The exact same swap u did explodingGopher I just completed it. Fuel cell and the whole nine yards. Any questions just email me at

[email protected]

 

[accidentprone86]

I would take your wiring harness, computer, and mas air meter of your hand for cheep if ya dont want them lying around.

 

[Boss 351]

Can't wait to see some pics of this beast!