Thought I'd bring this one back to the top as my resistors arrived in the post today
I started getting the Incorrect Air Flow at SAI ages ago, think it was due to the N112 melting after it slipped down the back of the engine!
anyway, removed the SAI and used a blanking plate where the valve was, was still getting the incorrect airflow code so I ordered the resistors
in the meantime I disconnected the N112, now the interesting thing was that since disconnecting the plug to the N112 I now just get one code. The code is saying that its an open circuit to the N112, which there obviously is because the N112 is in my tool box and the plug isnt attached to anything
No code at all for incorrect airflow! before I was getting the airflow code every 2 days really
really hoping that tomorrow when I use the resistors I'll no longer get any codes or EML coming up
now the question is, the line that did go to the N112, circled in blue below. Shall I now remove this bit of tubing for now and block the end where the join is so there is no more excess hose in place doing nothing. Obviously a yes I guess!
The other part circled is the plug I'm about to put the resistor into
will report back on how things go after the resistors are fitted
Removed the excess bit of pipe and fitted a resistor, just 1 to where the N112 should have been for now.
Cleared the fault code and been for a few drives today, over an hours driving and no fault codes at all!
guess the main test will be a cold start to see what happens but so far it looks quite promising!
left it to idle for a good few minutes at various times and no EML or errors
Fit blanking plate
Remove N249 and N112
Fit 3x 330ohm 10w Resistors in the place of the 3 above valves
Remove all the 'junk' related to all the above valves
Re-check all remaining vacuum pipes for breaks
(Solder +ive on 1 end of resistor and -ive onto the other (Think of extending wires and move from bulk head heat)
If all this done, you should have 1 Fault code and NO EML?
Thought i would dig this one up rather than start a new more pointless post.
My SAI has been getting louder recently on cold starts. and im getting the sai incorect flow code every so often so im looking at removing it all.
Ive got the resistors and everything from where i done my n249. ive had a look and i cant for the life of me find any electrical plug for the sai system though ive got a feeling its staring me in the face and im being blind.