Finally got my 240 purring again -- had it sitting for around a month while trying to diagnose a healthy crank but no start problem. Ended up fixing it with a new ignition coil and an ECU replacement (it had a ECU from a 740 on it, replaced it with a XXX-951 model).

Anyhow. It's running -- yay! but the brake is spongy and will sink pretty damn far intermittently. From my amateur diagnosing skills, I'm thinking it needs a new Master Cylinder.

Here's the question: does my '91 240 Base have ABS or not? Looking for a sure-fire way to tell, but I'm just not sure. I don't want to order the wrong part (as there appears to be a difference.) Does anyone have any insight? Thanks!

 

Sounds a little overkill to just replace the MC without checking all of the calipers and bleeding the system. As to ABS just look at the brake lines going out of the MC and see if it goes into a separate box with electrical connectors in it. There will also be 1 brake line going to each wheel if you have ABS.