4 long blinks...3 short ones...code 43? pr4 ls ecu...what is this code mean?

 

eek. i had this prob with my ls in my hatch. its fuel system supply malfunction

injectors..
Fuel Filter
Fuel pump...

I got it after i rebuilt my motor and i checked my injectors and the tips were all gunked up. Put new ones on.. Replaced the fuel filter and it was gone..

If you replace what i did and you still get it. i would say fuel pump..

oh i replaced my main relay too, not sure it that is on the same subject though

hope that helps.

 

ok its prolly my injectors...everything else was replaced recently...ill try those...thx alot
u know the size of them on there right now?

 

I have this stupid problem too, so annoying. I guess I'll replace the injectors and see if that works. Thanks for the info

 

try changing o2 sensors i had a code 43 changed my o2 sensors then it went away