BlackEJ81998

Hey guys quick question i have been doing searching for a few hours now found a lot of similar problems but not mine, i just bought a 98 civic coupe it has a d16z6 swap and converted to obd1 and it is throwing a code 41 (the oxygen sensor/heater code) i threw in another o2 sensor still the same code, you can unplug it when its running dose not change anything, drive's like total butt, now i was told the ecu (p28) was all stock but I'm going to check that sins all the other stuff i have found wrong with the car and im going to test the wires from the o2 sensor to the ecu but is there any other stupid things that could be causing this problem other than human error?....ohh it rev limits at 6500 to. thanks guys

MonkeyMagic

how was the obd conversion done? with a conversion harness?

it is highly unlikely it is anything we can fix over honda-tech because the problem is almost guaranteed to be in whatever wiring atrocity the previous owner performed.