I don't have an accord ecu and so I tried the p13 ecu I had laying around. I am getting a code 23 for the knock sensor which causes it to run in limp mode. The engine doesn't have a knock sensor for me to hook up either. Anyone know how to bypass this code from the ecu? I do have a knock sensor that I could tap into the block but I rather just get the stock ecu.

 

the p13 ecu will not work very well with the f22b1 even if you do get the knock sensor hooked up...the fuel and ignition maps are totally different and is designed for a motor revving to 7200 rpm's, not 6200...vtec engages much later than on the stock ecu...if you really want an ecu that has aftermarket support (i.e. hondata etc) then get a p28...the p28 doesn't have a knock sensor and you will run error free...just make sure someone burns a ROM for you with the correct fuel and ignition maps so you don't blow your **** up...

 

then get a p28...the p28 doesn't have a knock sensor and you will run error free...

what car does a p28 ecu come from?

 

some sohc civic i believe...

 

The p28 came from a 92-95 civic ex/si