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Model specific boards => Golf mk2 => Topic started by: lordbigsack on 30 March 2008, 17:49

Title: What is this sensor?
Post by: lordbigsack on 30 March 2008, 17:49
As you can see from the pics the sensor is knackered.  Anyone tell me what its called?  thanks.  Its located below the 2nd spark plug.

(http://coultish.co.uk/sensor.JPG)
Title: Re: What is this sensor?
Post by: clipperjay on 30 March 2008, 18:07
Knock sensor
Don't ask how much either you need one without a doubt!
Title: Re: What is this sensor?
Post by: Jay on 30 March 2008, 18:47
resize that pic mate, it's a bit large  :laugh:
Title: Re: What is this sensor?
Post by: wopdat on 31 March 2008, 10:43
Definately a knock sensor... :smiley:
Title: Re: What is this sensor?
Post by: russ-vdub on 31 March 2008, 11:35
i didnt actually know that, cool, does orientation matter with these, cos mines on the piss?
Title: Re: What is this sensor?
Post by: rombonie on 31 March 2008, 11:43
Stick the wirer vertical but i don't think its to critical, IT does need to be torqued to the correct level, 20 nm from memory.
Title: Re: What is this sensor?
Post by: Benrevs on 31 March 2008, 11:44
Took me ages to find it in the pic! :grin:
Title: Re: What is this sensor?
Post by: russ-vdub on 31 March 2008, 11:46
Stick the wirer vertical but i don't think its to critical, IT does need to be torqued to the correct level, 20 nm from memory.


hmm i didnt know that either, better get me wrench out, stick straight and torque him up (i'll check the haynes first tho ;) )..god engines have soo many things that need to be right!
Title: Re: What is this sensor?
Post by: cняis on 31 March 2008, 11:52
try the breakers or ebay for one in mint condition i.e. no breaks on the wiring or its insulation

one from a passat will do, but the lead is shorter (makes no difference)

dealers want £50+ for them (i checked last month)

i just got one in mint condition off ebay for 99p  :cool:
Title: Re: What is this sensor?
Post by: rombonie on 31 March 2008, 11:56
Aye, if its to tight it will be too sensetive and retard the timing, check the advance at 2500 revs, if it advances to +30 then its ok
Title: Re: What is this sensor?
Post by: russ-vdub on 31 March 2008, 14:11
check the advance at 2500 revs, if it advances to +30 then its ok

i know a bit about timing but you talkin bout gettin a strobe on and reving it to 2500 and check ithat with the flywheel mark? cos i got a snap on timimg jobby from my mechanic, can i use this yeh?

oh and 30+? whats this mean?
Title: Re: What is this sensor?
Post by: russ-vdub on 31 March 2008, 14:27
oh and my knock sensor was pretty damn tight, torque it up now and the engines SOOO much smoother, crazy!
Title: Re: What is this sensor?
Post by: lordbigsack on 31 March 2008, 14:32
resize that pic mate, it's a bit large  :laugh:

Done!

Cheers for advice, is that the reason it is running a bit lumpy about 3000-4000 revs? 

S
Title: Re: What is this sensor?
Post by: russ-vdub on 31 March 2008, 14:35
it could well be, toh there could be so many reasons for this! timing, idle, co2, vac hoses, oil pressure blah blah blah...the list goes on!
Title: Re: What is this sensor?
Post by: cняis on 31 March 2008, 14:39
you forgot the blue temp sender!  :grin:
Title: Re: What is this sensor?
Post by: cняis on 31 March 2008, 14:40
you forgot the blue temp sender!  :grin:

when it was running, the project ran like a bag of nails with the sender connected once warm. once disconnected it purred like a kitten.
Title: Re: What is this sensor?
Post by: lordbigsack on 31 March 2008, 15:13
Sourced one locally, cheers  :smiley:

In for MOT on Weds so am crossing everything in the hope of a pass
Title: Re: What is this sensor?
Post by: Khare on 31 March 2008, 15:37
it could well be, toh there could be so many reasons for this! timing, idle, co2, vac hoses, oil pressure blah blah blah...the list goes on!

where is the knock sensor on a 1.6 driver carb? F reg :huh:
Title: Re: What is this sensor?
Post by: ben44 on 31 March 2008, 19:16
it could well be, toh there could be so many reasons for this! timing, idle, co2, vac hoses, oil pressure blah blah blah...the list goes on!

where is the knock sensor on a 1.6 driver carb? F reg :huh:

does not have one as the advance/retard is vacumn operated
Title: Re: What is this sensor?
Post by: Khare on 31 March 2008, 20:17
ok cheers :smiley: