Ok, I've got a 1990 Integra w/ a jdm b16a swap (obd0) w/ a PW0 ECU.
Ok, I got the car a couple of months ago, and lately it has been very nice out, so I decided to figure out why my check engine light is on. Well, I found out I'm throwing a code 23 on a PW0 OBD0 ECU.

When I first start up the car, no check engine light. When it gets warm, it begins throwing a CEL for code 23 (knock sensor). When I keep it at a steady speed, you can hear/feel it sputtering a bit, and the engine is not running at full potential.

Basically, my question is, how do I get rid of the CEL? Would a different ecu help? Thanks.

 

Make sure that you KS is wired up properly to the ECU and make sure that you have both 02 sensors hooked up properly.

Blaze

 

What's up guy's see u guy's have this issue long time ago
I buy a DA 90 with a jdm obd0 b16a engine and ys1 transmission
When I buy ,,,my uncle check for me and knock sensor was broke so I replace but still getting the cell 23 and plug and wire are good
last week I buy other pr3 obd0 ecu but same problem still code 23
But with the old ecu car when temperature up check engine light didn't get on but with the new one yes
Last owner just swapped the engine hut he never run
the engine don't smoke and run good but vtec not working and all pins are in the correct spot
The only im thinking its replace the ks cuz I buy from ebay and I pay like 10.00 lol