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O2 and RPM sensor question for my 91 745 turbo 700 1991

posted by  eyyu on  Sat Apr 5 14:41 CST 2008
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last visit: Tue Apr 8 14:16 CST 2014
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Hi, my 91 745 turbo has been trying to tell me something lately. It took a few cranks to get it started sometimes. Most of the time, it's normal. NO check engiine light on. However, it gives codes. 232 is more often. sometimes it gives 214 (ignation RPM signal erratic). The FAQ says "Adaptive heated O2 sensor control (94-up)" for 232. I noticed that there are a few codes(231, 435, 436, 511, 512, 521, 522) related to the O2 sensor. The discriptions are all a little bit different. Mine is not califonia car. Does 232 in my car mean the sensor is on the way out? I guess that 214 is probably related to the ocational hard to start situation. Do I need to replace the O2 sensor and the crankshaft RPM sensor now, or I can let them go a little? Thanks. Erwin






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New O2 and RPM sensor question for my 91 745 turbo [700][1991]
posted by  eyyu  on Sat Apr 5 14:41 CST 2008 >


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