Kn1ght Posted April 30, 2008 Share Posted April 30, 2008 Need help with an error code 31 I’ve got a J-spec auto TT with hybrids. While driving, my engine cuts out, there’s no real signal that it’s going to do it before it does, it only ever happens while the engine is revving between 1k – 2.5k. I pull over and stop the car put it in P then restart it, and it fires up 1st time, just like nothing has ever happened. Other things I’ve noticed are that when the car is cold it idles at 800ish and when warm it idles between 1k and 1.2k when put into N. EGT’s when idling are about 500c and between 600c and 700c when cruising. Error 31: - Open or short in air flow meter circuit for 3sec. or morewith engine speen less than 3000rmp. any suggestions please? regards Ross Link to comment Share on other sites More sharing options...
kslb Posted April 30, 2008 Share Posted April 30, 2008 http://mkivsupra.net/vbb/attachment.php?attachmentid=13922&d=1112558346 Should help! Link to comment Share on other sites More sharing options...
Kn1ght Posted April 30, 2008 Author Share Posted April 30, 2008 yes I've looked at that, where is the air flow meter in a TT? happened again tonight, when the engine goes fuel pressure jumps to 3.0bar (least I think it's bar) could it be anything to do with the FCD? Link to comment Share on other sites More sharing options...
hodge Posted April 30, 2008 Share Posted April 30, 2008 it will be your fuel cut defender. Ive had a total nightmare trying to sort this out, but its done now. take out your FCD reset your ECU and check for codes. (This it just to iliminate the FCD from the pic before someone jumps all over me for telling him tho take it out) Your alarm sould be gone. if this is the case, then either put your old FCD back in or buy a new 1 just incase. Hope this helps mate. Oh and make sure you solder it well or your back to square 1. Good luck. Link to comment Share on other sites More sharing options...
Kn1ght Posted April 30, 2008 Author Share Posted April 30, 2008 Cheers mate had a funny feeling it was this bloody things.. to test when the FCD is out did you drive or will it come up with the error idling? thanks again Ross Link to comment Share on other sites More sharing options...
Kn1ght Posted May 1, 2008 Author Share Posted May 1, 2008 In case I need to replace my FCD. Which is the best option? brand model etc.. Link to comment Share on other sites More sharing options...
hodge Posted May 2, 2008 Share Posted May 2, 2008 I have a thor unit in mine but I dont think they make um anymore. I heard the greddy or HKS units are pretty good. After you rejoin your map sensor wire rset your ECU and do a fult check. The car doesnt have to be idleing to do this. good luck mate. Link to comment Share on other sites More sharing options...
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