Just bought a 93 245 with m47 and 103k miles. Previous owner maintained exceedingly well since new as evidenced by records, receipts. Car is LH 2.4 (88 in vin)
Picked it up, drove it 200 miles. No codes or problems for first 100 miles, then check engine light came on about 50 miles after I noticed bogging on acceleration with slight lack of power. Idle and start up were fine. Revving in neutral was fine. the codes were 2-3-1 and 2-2-1...Bentley reads that these indicate compensation for too rich or too lean air/fuel mixture. I couldn't find any air intake leaks. I'm thinking either faulty oxygen sensor (but no oxygen sensor code??) or fuel pressure problems (filter, pump). I'll read my Bentley and test the o2 sensor in am with voltmeter. Any other advice? Much appreciated.
-Instant
ps - I cleared the codes and drove another 20 miles. Same codes popped up.
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