engine shakes when cold

9th January 2011, 23:40

i have a 2002 vts and sometimes when i start my car the engine shakes and has a misfire then when it warms up its fine. Does anyone know what it could be ive had it at a few garages and thay cant find the problem thay said wait till it happens more often then bring it back.

10th January 2011, 00:40

maybe idle control valve?

10th January 2011, 11:06

Saxos hate the cold - FACT

10th January 2011, 12:41

i was thinking the icv i might give it a good clean. Is there a temp sensor i could check?

10th January 2011, 15:37

I`ve got the same problem on a vtr have changed the coolant temperature sensor(green 1 on the thermostat housing)still no better mechanic said to me it could be the Map sensor or more probably the lambda sensor because it has its own heating element which breaks down.Also i`ve cleaned the ICV thats working fine though.

Steve.

10th January 2011, 18:02

ive changed the map sensor and no better. Im going to clean the icv and if that doesn't work im gonna change the lambda sensor. Did changing the coolant temperature sensor help at all?

Dan.

10th January 2011, 18:23

Quote:

Originally Posted by DKC23

ive changed the map sensor and no better. Im going to clean the icv and if that doesn't work im gonna change the lambda sensor. Did changing the coolant temperature sensor help at all?

Dan.

Strange thing with the coolant temp sensor is,is that i`ve still got a rough idle/misfire but the temperature guage now sits 1/2 way up instead of being 3/4 of the way up(its French)

Steve.

10th January 2011, 21:28

Ive never had a problem with over heating so might leave the temp sensor. Ive had a compresion test and had new spark plugs so all thats left is icv and lambde sensor. Is it just saxos that have all these faults?

10th January 2011, 22:22

Surely has to be ICV mate, changing a temp sensor would not make much difference as it takes a few minutes to even pick up a recording..

Try that mate

11th January 2011, 11:18

cool do you no how much a new icv is?

11th January 2011, 20:37

just give it a clean

there is an easy to follow guid on here about it ;D

11th January 2011, 20:41

Quote:

Originally Posted by Tufty

Surely has to be ICV mate, changing a temp sensor would not make much difference as it takes a few minutes to even pick up a recording..

Try that mate

Changng my coolant temp sensor has made a difference to my saxo the temp guage now sits at 1/2 way instead of 3/4,but the shaking has not stopped though.Today I bought and fitted a new lambda sensor so will see in the morning what the car is like.

Steve.

11th January 2011, 21:48

The Lambda senser is that the one on the manifold cover sort cable coming upward and to the right into a connection box kind of thing? sorry to sound noobish Thanks Dan.

11th January 2011, 22:07

Quote:

Originally Posted by VTSDanny

The Lambda senser is that the one on the manifold cover sort cable coming upward and to the right into a connection box kind of thing? sorry to sound noobish Thanks Dan.

Thats the 1 mate,although some saxo`s have 2 lambda sensors.(for improved emmissions)

Steve.

11th January 2011, 22:10

Quote:

Originally Posted by stevo67

Thats the 1 mate,although some saxo`s have 2 lambda sensors.(for improved emmissions)

Steve.

Brilliant steve i need too replace mine as it looks like it snapped in half and previous owner has tape it back if this goes dodgey (best way to describe it) can it cause the engine management light to come on? as it says in the owner manual it comes on when emmisions ect are out ectect.. not in them words but round abouts?

Many thanks Dan

11th January 2011, 22:25

Yes a faulty lambda sensor will make the EML light come on.

Steve.

11th January 2011, 22:26

Thanks mate all sorted will have to quote up a new one cheers bud

12th January 2011, 00:51

well im cleaning the icv tomorrow so will tell you if it works. I might take the lamdba sensors out and give them a clean to. Ive got a lot of rust on my catalytic converter so might see if that needs replacing while im at it. I'll try get a quote from some were.

Dan.

12th January 2011, 14:37

ive just cleaned the icv and the body up. gave it a drive round the block its not holding the reves like before so might of solved the problem. the next big thing is to see if it stopes the shaking from cold.

13th January 2011, 09:26

ok started the car up this morning after cleaning the icv and same thing car shakes and misfires. any other suggestions?