Maybe I'm totally wrong, but I never understood why the codes that an Audi gets has so many things that need to be checked.

Like this one:

P1136
17544
Long Term Fuel Trim Add. Fuel, Bank1

System too Lean -
Check intake air system for leaks ("false air") Page 24-97

- Check Mass Air Flow (MAF) sensor -G70- Page 24-57

- Check fuel pressure regulator and residual fuel pressure Page 24-93

- Check fuel injectors

Why can't it just be a single thing to check. Just seems like it's too difficult to figure out sometimes. This isn't my code, thankfully I don't have any, but if I ever get one I'm going to be pissed. I wouldn't want to have to check all that stuff for a fix. Just don't get it.

 

Because like any other car it could be a variety of things that will give the same symptom. They're just trying to cover all the bases and taking the guess work out of diagnostics.

 

I thought on a normal car, it just said what it was. On my Integra, if I ever threw a code, it told me what it was specifically.

 

In my experience Audi/VW computers monitor a LOT more things than a "normal car"

 

Those are all the things that can cause a lean condition.

same thing on your acura. I just decoded all the things that can cause a lean condition...

Vacuum leak, ECU getting a signal that not enough air is going into the engine (BAD MAF), or not enough fuel (clogged injector or not enough fuel pressure).

 

So, them most of the time there is only a certain description for the code and then you have to figure it out from there.

 

uh, yeah man. I had a lean code on my Taurus Sho with new 02 sensors...

long story short, the O2s werte reading improperly...

 

fukc the codes i just start messing with **** till that check engine light is gone. hahaha
a little unorthodox but hasnt failed me yet.

 

Replace the mass air low sensor.80% of the time that what it is .the other 20% is air leak or 02 sensor

 

o2 sensor is the first mistake you will make because it was an air leak so the o2 sensor detected it and threw the code (air leak caused the problem) o2 sensor was doing its job, the codes are a guide and have to be read like a book im given 3 to 5 choices to check out, if you only know the code you only have one choice through lack of knowledge which is why I can look for possibilities and you cant (im trained to do this)