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LIMP MODE....?
Posted: Sun Jul 20, 2008 12:44 pm
by LeMeph
ive jst been reading thetopics as i do off a morning and everyone seems to be talking about this limp mode thing... what the devil is it? Im guessins its like a safety mode for when the car thinks something is wrong?
Sorry for the Noobishness of this question. If this were the mk4 forum id be king offall things knowledge damnit, move into turbos and fancyness and im screwed lol.
Posted: Sun Jul 20, 2008 12:50 pm
by flyfs6
Whoa Kenny. I was just going to reply to say its basically a safety feature to prevent over boosting/or caused by. It wont let the car rev above 3k rpm approx and usually can be reset by restarting the car.
Posted: Sun Jul 20, 2008 12:51 pm
by KennyPOLO_Gti
Limp Mode – These cars are designed to protect themselves from engine damage. If the engine boosts too much, or the engine does not get enough fuel it will go into a limp mode where boost is limited to protect the engine. It limits boost by controlling a solenoid on the wastegate line (N75), by closing the electronic throttle or by opening the DV valve. If you are experiencing a limp mode the best thing to do is get the car scanned for codes and to see what is wrong. Look at fuel trims for signs of running lean, and to look for MAF problems, or O2 sensor problems. To look for potential boost problems log Block 115 and you can see the specified Vs actual boost. If you exceed the specified then there is a good chance that you will go into this limp mode. Stock specified is a max of 14 psi for a 2002+ car.
Posted: Sun Jul 20, 2008 12:53 pm
by KennyPOLO_Gti
Deleted that last post and put up a shorter version. Thot it was a little ott!
Didnt think anyone woulda read it, was only up fpr 2mins flyfs6!
Posted: Sun Jul 20, 2008 12:55 pm
by flyfs6
next time i need info like that I'll ask Kenny.
Posted: Sun Jul 20, 2008 1:34 pm
by KennyPOLO_Gti
Na probs
Posted: Sun Jul 20, 2008 1:51 pm
by LeMeph
hrell iw ouldnt have mind the bulk information. id read pages on this stuff it fascinates me to know how things work!
thats a good bit of info though kenny thanks very much!