g60 bogs at low speeds..fixed..was o2 sensor

[steveo29 0]

my g60 hasnt felt right in ages

 

feels really wrong under 2800, it bogs /stumbles and feels really flat and wont wake up until 2800

 

all service parts, timing , cam timing is all good , and its been at pitstop for him to check it over for said fault and he said the map is fine

 

any ideas? its not a fun car to drive at the moment

 

im half thinking theres alot of timing being pulled out maybe? make any sense?

[flusted 0]

either lambda or temp sender

[boost monkey 0]

blue temp sender is a good starting point. Notorious for going on the Gs.

[steveo29 0]

yeah good point on the bts..is there a way to test it as its fairly recent and a genuine vag

[boost monkey 0]

I think you can check the resistance across the terminal? Lemme pull out my mk2 haynes...

 

Sorry, doesn't seem to say how to test it. They're only about £10ish anyways (iirc) and are quickly swapped out.

 

This will affect your economy too, so not a bad thing to swap out for new.

[flusted 0]

About £25 from vag. think you can measure resistance in ohms when cold and when hot, remember someone saying 2000ohms but unsure whether thats hot or cold

[steveo29 0]

right just been for a drive with the knock sensor unplugged ...seemed better and i could hear pinking around the revs where it bogs

 

so im guessing the timing wants backing off some more , and the knock sensor is doing its job...or can they pull too much timing /be over sensitive?

[steveo29 0]

right played around with it some more and it felt like it was better with the o2 disconected

 

so ive purcahsed a bosch universal sensor and it seems to have fixed it...seems to go a bit better too