I have civic '00 ej8 obd2b d16y8, and I have done auto to manual swap. I'm using obd2a ecu with harness. But it drops one error - 91 (fuel tank pressure sensor). In my harness I have found a few mistakes, like the wire of fuel tank pressure sensor is conected to incorrent pinout. I reipaired it, but the error didn't disapear... What do you think about that?

 

tried this?

http://www.ff-squad.com/technet/code91.htm

 

but this sensor is on my wiring obd2b, and the obd2a ecu is from '98 civic (this has fuel tank pressure sensor also)... so what is the problem?

 

and if it will be allright when i ride with that error? nobody bad can happen? this error can cause something?

 

any ideas?