855 t5 Playing up

[merc85]

Ok My car has been reving up more and more between gear changes, So i cleaned the idle control valve, didnt make much difference, if any thing worse.

Now my temp gauge has also started to play up.

Car rev's high on tick over, and doesnt like accelerating hard, thinks its on choke.

codes 123 (temp sendor)

Going to be changing this asap, hoping it will sort everything, have put another used idle control on and it seems a little better.

Will keep you all posted.

[Kingsford G]

Gav I had a merc 190 wiv revving up probs and nothing could do about it and then a couple weeks later I had to recover it broken down.Turned out to b a fuel pump relay,basically when the relay is on its way out on them the revs start playing up.Just wondering if that happenes on these cars aswell.

[M-R-P]

Wise advice there, check the simple things and work your way up. Hope you get it sorted mate.

[merc85]

Fuel pump relays coman on merc's not so with the volvo's.

Will update when temp sendor is replaced as this is definatly faulty.

[kyboy]

hi there I had this problem, changed idle valve etc and nothing turned out to be the lambda!

[merc85]

hi there I had this problem, changed idle valve etc and nothing turned out to be the lambda!

This is also suspect so i will change this as funds allow lol

[RiPsTa33]

Try a temp sender and thermostat, if its sending the wrong temp to the ecu it will be overfueling.

[jayeastanglia]

did my temp sensor as well when mine threw up a simlar thing a while ago made it start up so much better when cold and much better idle...think it was £15 or so..
fuel pump relays common on the 740/940 range as had one go on 2 of my previouse cars and cleaned/fixed for someone once on a forecourt garage as well but havent had a 850 relay go on me as yet but always a first time for everything..

[craigoodwood]

http://www.ebay.co.uk/itm/VOLVO-S70-...item3a7293562a

[merc85]

Well changed the temp sedor, that cured the fueling and gauge.

There was a Air leak that had been there for ages, The Large pipe from idle control to vac tree.

I squeezed it when it was ticking over high and it reduce the rev's. could also here the air escaping.

Cut the pipe back and hey presto Cured!!

Car now absolutly fly's the best it ever has done, been leaking a while i think.

[Kingsford G]

Well changed the temp sedor, that cured the fueling and gauge.

There was a Air leak that had been there for ages, The Large pipe from idle control to vac tree.

I squeezed it when it was ticking over high and it reduce the rev's. could also here the air escaping.

Cut the pipe back and hey presto Cured!!

Car now absolutly fly's the best it ever has done, been leaking a while i think.

Glad its sorted mate,enjoy yr ride.

[merc85]

Glad its sorted mate,enjoy yr ride.

Have been buddy, wheel spin in 1st 2nd and 3rd lol

[Kingsford G]

Have been buddy, wheel spin in 1st 2nd and 3rd lol

I think yr car got into the habit of wheel spin and does it whithout u even realising it lol

[merc85]

I think yr car got into the habit of wheel spin and does it whithout u even realising it lol

??? thought it had stopped/eased off??