badboyr66

Well I am doing a B20 in my 92 VX and am having some trouble getting rid of the o2 sensor CEL. I am using a chipped P06, and also the original VX harness. We have double checked this a few times and been searching on here for a while with alot of different options but nothing has worked. I guess I am looking for someone who has dealt with this first hand. Allot of the previous threads were filled with mostly speculation, so please post if you know for sure. I posted in the EG area but was hoping some wiring gurus were lurking around in here.

I did also find this but I am using the Honda O2
http://www.hybridautomotive.com/tech/o2/#seven



But I am not sure what I am missing here. Does anyone have any other wiring info I can look at.


Even stranger is we cannot get rid of it even though we clicked checked the box in Chrome to disable it.

Relic1

which CEL are you getting?
1 or 41?

if you're getting 41, make sure you switched the heater wire from ground to 12V. (othe side of the O2 heater in a VX is ground, it's 12V for the standard honda setup)

if you're getting 1, triple check all your wires, make sure that the ground is present on the other side of the O2 signal line and that the signal side of the O2 is fed correctly to the ECU.

a1320honda

Ya we checked the wires about 6 times. Its getting code 1. I checked continuity from the O2 to the specific wires on the ECU and they all check out, except the power which just for testing purposes were pulling straight off the battery.

Heres the schematic im using and have used for this before. Sorry its a little small.

badboyr66

My birthday bump

Relic1

took the conversation to your other thread, mods you can purge this thread.

badboyr66

Ok well let me follow up on this unlike all the others I searched for. This is funny but 2 others asked about this and I was sure it was right. Turns out the plug for the IAT is not grey... but white. People had asked me but I was so sure I never took the time to really look into it. I just said "Yes of course it is hooked up right.. we have done this before helloo" So it ended up back feeding too much power to the IAT and ruining it. Once the problem was found and we got a new sensor all was well.

Interesting though... we put a stock LS ECU and runs fine.... put in the chipped ECU with the chip from Phearable and it turns into a monster....a monster with a CEL for IAC though. Put back in the LS ECU and cell is gone


Steve will chip another ECU and we will try that.

But problem solved I need to stop over looking the small obvious things. But I do not feel too bad since it has happened to others