ok so i have an ef with a b18b1 swap and im running a pr4 ecu which is obd1 its showing codes but im not sure what the led flashes are in relation to does any one know what the flashes mean and can you send a chart so i can figure out what the hell is making my car eat gas like a fat kid eating cake

 

One slow blink=10 one fast blink=1.. post a vid of the flashes

 

LED on the ECU?

 

Yes

 

I was asking the OP, because if there's an LED on the ECU that flashes the codes, he's OBD0.

 

Lol didn't even notice that he said obd1 ecu. Your correct if op has led on ecu he's obd0

 

Easier to figure out what the codes mean if he knows what OBD it is

 

This should help http://forums.g2ic.com/tegtips/engine/13.html