I check my codes from time to time when I do oil changes and the 232 came up this time,I can clear the code but it comes back after a day or so.This manual I have is after-market and not really clear on what to check.I can create a lean or rich condition to make the sensor go from 0-1.0 volt so it appears to be working,is there a common problem that relates to this code?

I've had the same problem with my 89, B234, 145,000 miles. Every so often, it will run poorly wanting to stall, poor idle, smells like gas, then fix itself. Over the last two years it has had new plugs, wires, cap, rotor, crank sensor, temp. sensor, intake gasket,fuel regulator,injector seals, O2 sensor, idle valve and the fuel pumps have been changed. Swapped AMM and that didn't help either. My next items to investigate are coil, throttle position sensor, radio suppression relay, knock sensor and power stage. I have heard these cars had issues with weak coils, but mine checks ok. I'm thinking some issue in one of the above items may cause the rich/lean condition, even though they are mainly ignition items. I'm open to ideas too. Thanks.

Man, I'm glad I'm not the only one with this.... My 740 is doing the SAME thing and has done it for a year and a half... Problem is that code isn't very specific, and there isn't anything obviously wrong..

however, i did pick up a revised computer (the "928" one) at the junkyard so I'll see if that might be better when i get around to installing it....

Cliff Scott
89 DOHC740

Sticky problem. Sounds like a bad signal issue. Clean and grease every electrical connector you can find. Keep us B234F owners posted, please.

Love the license plate. Why didn't I think of that, so obvious. Too bad that personalized plates cost $250 Canadian in Ontario.

Bill

that's Harsh for personalized plates!!! you know how much they cost here in IL! a whopping $14 (one time charge).. and $78 for every year regardless if it's personalized or not (Vanity plates however, with all numbers or all letters are $95/year)


Cliff Scott
89 DOHC740