I have a 91 crx hf with a si motor and tranny swap. ( D 16a6) At mid range rpm's it sputters and bucks, and the ecu reads 1 single and 10 single.(1 1111111111) No one knows what the problem is. I need help today if able. Thank you

 

Well you have to count the number of flashes, then the pause, and you also have to tell us the number of long flashes / short flashes. Think Morse code

 

there is one short flash then a pause then ten short flashes with no pause at all

 

Code 1 and Code 10 maybe? Code 1 is O2 sensor I beleive, don't remember code 10. Check out the FAQ at the top, tons of info on codes.

 

what ECU is it...either HF or SI same so "same codes" 1 = oxygen content and 10 is intake air temp...but normally 10 is abbrieviated with a long flash make sure its not like 1 and 19 which is lock-up control solenoid valve ...if its another ECU "i dont know why it would be" let me know and ill find you the codes...

 

Code 10 is Intake Air temp. Make sure the sensor is plugged in, if it's damaged, replace it with the old one from the HF engine.