Si_chRis

No, I'm pretty sure I have the right o2 sensor.

So instead of getting both the P0170 and P0172, I only get the P0172 now. I checked my evap lines, no leaks.

v-teg

i just actually just recvd this code today after topping off my gas tank 93 octane gas ... i have a 98 b18c1...let me kno if u resolve the problem

Si_chRis

Try taking off your gas cap and re-screwing it back a couple clicks. I heard it can cause a CEL.

Si_chRis

So the P0170 and P0172 codes came back. I read on a Honda TSB for 1996-2000 Civics that these codes are/can be caused by wrong fuel injectors and I had on 1997 OBD2 JDM ITR injectors. I don't know why they would be a problem since they are flowed at 240cc as any B series injector and will work with most B series.

So I switched back my old fuel injectors except for 1 since it was damaged on the tip. So I am running 3 stock injectors that came with the car from the factory and 1 JDM ITR injector. They all run 240cc so the JDM ITR injector should be fine I guess.

I reset my ECU and so far no codes. I'll go through a couple more drive cycles and see if I still get the codes.

Si_chRis

So switching back my old injectors worked. No more codes.