Makenzie71

twit...the guy's unplugged the BAC and plugged all the lines and I guess cut the connector. Can anyone tell me right quick what colors the wires are that hook up to the BAC?

I CANNOT!! stand the way these cars run without it...all that low RPM stumbling and bullshit...why does anyone think this is a good idea?

Makenzie71

ok they're black/white and light green. Can anyone post up a picture of where the BAC plug comes from on an 88 TII?

ilike2eatricers

It splits off from the main engine harness behind the alternator/thermostat housing area. If you can trace your o2 sensor wire it should make things easier.

evileagle

iTrader: (1)

He might have just taken it off because it was destroyed. I know when I was taking my motor out I disconnected the plug off the BAC and the plastic plug just fell apart into dust. The wires just run back into the wiring harness like 6" from the BAC.

Makenzie71

I found the wires, they were cut...I slapped another plug onn them, crimped it up, and plugged the BAC in, and got no change in running condition.

HAILERS

Remove the bac. Turn the key to ON. Does the bac's diaphram vibrate? It should. Also, do you have 12vdc on the black/white wire? You should. Another check would be to pull the wire off the starter solenoid and then turn and HOLD the key to START. If the bac is removed from the engine and its wiring plug is on the bac, then the bac should go wide open as long as the key is held to START.

If you have 12vdc on the black/white wire, then I'd guess the ECU's transistor is kaput from someone touching the black/white wire to the other wire for an extended period of time.

And just for clarity, the bac's wires come off the EMISSIONS HARNESS. The CAS and the engine fuse box are on the ENGINE HARNESS.