i swapped in a 90 ecu in my 91 and the check engine light is on is this normal?

 

someone reply! i need to know if it is safe to drive!

 

what are the codes that the ecu is throwing???

 

check the light on the ecu, and see what code its throwing

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ninjaturtle1023 &raquo;</TD></TR><TR><TD CLASS="quote">check the light on the ecu, and see what code its throwing</TD></TR></TABLE>
booooo read above post

 

the code of the ecu is 37820-PR4-AO2, and when i look at the ecu when the car is on it blinks once for about a second, then blinks two times in a row moderately fast. how am i supposed to get a code for that?

 

ok, i figured out some stuff myself , it is code 13, which is the atmospheric pressure sensor, located inside the ecu. From some research i did, it is recommended to replace the entire ecu from this problem . The thing is, i only need to use this computer for a couple days while my other computer is getting chipped an whatnot. Is it safe, or should i just wait?

 

The 90 and 91 Integra ECU's are different. 90's have an external PA sensor while the 91 has an internal one. That's why you're throwing a code.

 

so can i drive safely or not?