i have a 90 accord ex with a cel, i had a 92 with the connector to make the code flash but this one doesnt, my problem is with the blinking light in the ecu i cant understand the code it blinks once flashes 3 times then blinks off...repeat.

im guessing its a code 3 which by my haynes manual says its the map sensor, but it runs just fine no limp mode or anything

 

Long blink = ten digit. One long blink = 10, 2 = 20 etc.
Short blinks = one digits.

One long blink and three short blinks is code 13.

 

ok so one long blink following those would be a code ten right?

it blinks one long blink 3 shorts then a long again, so 13 and a ten

 

By your last description I'd go with a 13 and a 10....

 

i reset the ecu and now it has a 41, the 02 sensor heater i think