Pw0 Error Code

[Da One Wit Da Quickness]

i jus swapped a first gen b16 into my 90 crx si. my PW0 ecu is giving out da error code 2 and i cant find newhere wut it means. neone know wut 2 stands for?

 

[farmer_jason]

r u shure its blinking 2 if its 2 long blinks its 20 if it is followed by any short blinks they r the single
__ __ _ = 21

 

[posol]

its your 2nd o2 sensor code

https://hondaswap.com/articles/viewer.php?id=20

 

[mattcalica]

yup, its the 2nd o2 sensor, i got the same problem...the thing is, i have no clue where that 2nd sensor is..........

 

[zCivic]

Did you add a 2nd O2 sensor??? If you didn't add one or tap both wires into your single O2 sensor, it will throw a code because its looking for 2 O2's and one is missing