My integra is flashing 3 longs. i just put a battery in and when i turn the key nothing happens. not even the click like the battery is dead. i tested the battery, its good. i just took it off the trickle charger. last week when i had the battery in everything was fine. it started fine and everything. and im at a loss for what this could be. any help?

 

Are you sure you are checking the trouble code properly, there is no 30, 3 would be MAP sensor.

Does nothing at all happen when you turn the key on, no cluster lights, no fuel pump prime and so on or is it just that it will not crank when you try and start the engine? 94

 

i thought that 3 long flashes was 30? am i mistaken on who to read it? all my gauge cluster lights and everything come on. seat belts work. everything. but when i turn the key all the way nothing happens at all. no noise nothing.

 

k so i red it correctly as 3 as the map sensor. its good. and now its only throwin the o2 sensor code which is whatever. but still wont start. i cleaned both negative grounds, and the ground from the positive to the starter. still nothing. any help guys???

 

Try a bypass jump... https://honda-tech.com/forums/tech-misc-15/simple-diy-start-circuit-test-%5Bbypass-jump%5D-2961164/ 94