hmm lately engine light comes on after car is warm. i checked ecu and it had 4 long blinks and 3 fast blinks. thats 43? correct me if im wrong. but does any1 noe what the problem is? thanks in advance
what year car?
91 Ls
I typed one word into the search and came up with the answer.
well thanks i typed plenty of em and couldnt find it. i got 2 letters FU 
Maye its your O2 sensor or something dealing with fuel readings.
You’re quick to type one four letter word when you could have typed another in the search and found the answer.
43 - Fuel Supply System
thanks i found it
Go To Teg Tips And Look For Ecu Codes