My '99 ML320 has a reoccurring check engine light. The OBDII indicates 2 codes. These are FUEL TRIM BANK 1, and FUEL TRIM BANK 2. Replacing both O2 sensors downstream of the catalytic converters and erasing the codes has not helped. The check engine light still comes on after a short time and the same codes are read by the OBDII. Any ideas on what to do next?
- posted
20 years ago