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Model specific boards => Golf mk3 => Topic started by: danmusic24 on 27 February 2011, 14:16

Title: lamdba sensor
Post by: danmusic24 on 27 February 2011, 14:16

car running like a old dog! fault code 00537 lamdba sensor? is it a easy job to replace? and where would the best place buy one? engine code agg

Title: Re: lamdba sensor
Post by: javalin on 28 February 2011, 09:04

easy enough - can recommend a set of "crowsfeet" socket ends, and GSF for the part.

Title: Re: lamdba sensor
Post by: danmusic24 on 28 February 2011, 09:25

if i had a air leak on intake could vagcom be giving me a false code?

Title: Re: lamdba sensor
Post by: javalin on 28 February 2011, 09:27

yup - check for airleaks first.  Worth checking changing plugs & wires possibly too - bad ignition will also throw it off.  Air filter might be worth changing too...

Title: Re: lamdba sensor
Post by: danmusic24 on 28 February 2011, 09:31

the strange thing is that a few weeks before it starting running like a dog,i could here a loud air sucking noise but cant find anything leaking...so i hope its lamdba as it just cost me 39 quid.....

Title: Re: lamdba sensor
Post by: javalin on 28 February 2011, 09:37

induction noise?  Check that the airbox lid is correctly seated.  won't cause lamda issues though.

James

Title: Re: lamdba sensor
Post by: danmusic24 on 28 February 2011, 13:20

ok help needed! changed my lamdba sensor and car is still running rough..hunting on idle and slight missfire with popping in exhaust..
just plugged it back in and still got 00537 error code aas well as 00520 00523 and 00515 what the hell is going on.....HELP!!

Title: Re: lamdba sensor
Post by: rubjonny on 28 February 2011, 13:31

disconnect the plug to the lambda sensor, does it run ok? if not, the problem is elsewhere. if it does run better then either the new lambda is faulty or the wiring is shot.

have you cleared the codes then checked to see what comes back. look in the ecu measuring blocks too then you can see what the ecu thinks the coolant and inlet temps are, as well as read the throttle position to make sure thats ok as well.

Title: Re: lamdba sensor
Post by: danmusic24 on 28 February 2011, 13:40

ok done that,unplugged lamdba sensor and still runs bad! cleared codes and now got code telling maf error? would this cause engine to run like a dog?

Title: Re: lamdba sensor
Post by: javalin on 28 February 2011, 13:42

well - couldn't see a code for 520 or 523 but

    515 is listed as "00515 - Camshaft Position (Hall) Sensor (G40): No Signal"
    537 is listed as "00537 - Lambda (Oxygen Sensor) Regulation: Upper Limit"

http://wiki.ross-tech.com/wiki/index.php/Category:Fault_Codes (http://wiki.ross-tech.com/wiki/index.php/Category:Fault_Codes)

>ok done that,unplugged lamdba sensor and still runs bad! cleared codes and now got code telling maf error? would this cause engine to run like a dog?
can do.  Try with it unplugged?  (though mine cuts out at idle when driving when I did that test)

james

Title: Re: lamdba sensor
Post by: danmusic24 on 28 February 2011, 13:46

just cuts out if you pull maf plug out? 00520 is maf,00523 is air intake i think! i googled the codes

Title: Re: lamdba sensor
Post by: rubjonny on 28 February 2011, 14:08

it should run ok with the maf disconnected, if not check for vac leaks and make sure the throttle body is spotlessly clean. you may have to re-adapt the throttle body too, though with a dodgy maf this might not work?

Title: Re: lamdba sensor
Post by: danmusic24 on 01 March 2011, 10:42

ok! i cleaned my throttle body and still the same,lots of popping in exhaust and hunting..keep getting fault code for hall sensor so replaced complete dizzy and still the same, and still same code.cleared codes and now ive got lamdba sensor fault code again.so starting to think its not a sensor problem or electrical...could a blocked injector throw up a missmatch of codes..this driving me round the bend :undecided: