My 91 Civic Hatcback just started up. Its a stock SOHC 16 valve. After it gets warmed up it trows out a code. I don't really know how to read them codes yet. I was wondering if anyone knows a website to help me with this problem? When i look at the ECU it flashes one time fast and it repeats itself after i count flash,flash,flash, another light goes on fast????? Any possibilities whats wrong with it.

 

The search feature is your best friend, but here you are anyway:

http://www.hondata.com/techecucodes.html

 

thank you.

 

This will help you solve the codes as for what to do:

https://honda-tech.com/zerothread?id=468260

 

it was my O2 Sensor thanks 4 helping me out. No more check engine light!