These are the current error codes I am having right now.

13. Oxygen sensor signal stays lean during warm engine cruise

33. High voltage (low vacuum) at mass air flow sensor (or MAP sensor)

43. Low voltage at electronic spark timing circuit


For the oxygen I think it might be that there isnt enough fuel flowing through it. I am replacing the injectors and fuel lines so hopefully that will fix that problem. If not I want to no if I can just put a resistor in there to fool the ecm to think its always good, can I do that? If so what is the resistance for it? Or how do I test for the proper resistance for it?

As for number 33: I have replaced the map sensor and the hose that goes to the tbi. Should I check for voltage on the wires? If so, what wires and what reading should I get?

# 43. This is new to me, Is my esc bad? If my timing was off a little bit would it cause this to go off? How do I fix it?

Thanks in advance for all your help

 

Another note, I think my timing might be a little off. After the new engine I put the dizzy in at tdc and everything. Runs fine but when at a stop light or sign after its warmed up the rpms jump around alot. they go steady then jump up, go back down to steady and jump back up. I havent had a chance to bother my neighbor yet for his timing light to get the degree setting exactly on.