Oh Oh Code 31

[666theboy]

:1zhelp: In the mornings i have to let my car warm up for about 3 or 4 mins before i drive off as otherwise she runs slightly lumpy until completely warm (about 10 mins).As i slow down the revs drop to near stall (300ish)then pick back up to normal, but a couple of times it has actually stalled and its auto. I pulled my codes and it says code 31,which is an open or short circuit in air flow meter signal.I have recently fitted a K&N high flow air filter, could it be because of this? Does anyone have a remedy to this or do i have to get a new meter?
Or would having it tuned do any good? I have also fitted a straight through back box as well if that helps. Thanks for any help you can give me on this.


All of the work done on this car has been with a very tight budget (2 young kids) and free labour (me and my cousin Martin)
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[Cycoclown]

mmm i had this problem with mine, i also own an auto. i switched over the electronics from another AFM and it works fine.

When i noticed this problem i found out i had several studs missing on the exhaust mani side of the head. might want to check that too..

 

[supramk3man]

Check yours wires, when you put in the k&n you might have moved the afm to much and caused a wire to break or to be come out of the plug alittle.

 

[666theboy]

Check yours wires, when you put in the k&n you might have moved the afm to much and caused a wire to break or to be come out of the plug alittle.

cheers mate i`ll check in the morning as its dark over here at the moment
20:26

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[supramk3man]

hard to think of it be being dark at 3:45 p.m. here, oh how small the world is sometimes. Good luck on the repair

 

[Nick M]

Visually inspect the plug and harness to make sure it looks ok.

It isnt easy to ruin an airflow meter, unless it has outside help. Over oiled K&N, dropping, etc.