Problem Reports
Honda Civic
Report: PCM Software Update to Correct False Oxygen Sensor Code
Honda Civic Problem
Model Years Affected: 2004, 2005
Average Mileage: 117,000 mi (28,000 mi - 190,000 mi)
On certain models the Powertrain Control Module (PCM) can misinterpret the secondary oxygen sensor data and set a false Check Engine Light. A software update from Honda is needed for this issue.
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Visitor, 2004 Honda Civic, 74,000 mi
The MIL is on. Codes P0135 and P0141 are reported for each sensor. The sensors have been replaced. The PCM has been updated. The fuse box has been replaced. The problem persists.
Honda isolated the problem to no communications signal at fuse 4 in the cabin fuse box and recommended replacing the fuse box. That was done along with all their other suggestions. All that has been accomplished is that Honda has drained more money out of my economy.
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Visitor, 2005 Honda Civic, 123,000 mi
P0141 code, replaced sensors multiple times, checked fuses, wiring, measured O2 sensors w/ meter,computer o.k., just bought another sensor from dealer (no warranty...go honda!) going to replace sensor in cat. again. If it doesn't fix problem car is going for a downhill drive off of a short pier!!! NEVER OWN A HONDA AGAIN!
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Visitor, 2004 Honda Civic, 28,000 mi
replaced the oxygen sensor for 530 dollars
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