please read:the answer to everyones question

[saxotourdecorse]

...........

[saxotourdecorse]

just wanted to add. ICV does fuck all, u can run a sax without them.

[Peasnall]

would a faulty lambda cause an emmisions test fail at an mot? surely it woulld?

[saxotourdecorse]

yes - if it is completly shot at - but ecu overide(causing the car to stall) will occur long before it becomes completely shot at. the car will stall wen there is only a tiny problem with the lambda sensor.

[Peasnall]

hmmmm mine doesnt stall and passed the emmisions test so looks like its not the lambda.

[Prickle]

Good read :y: i think mine is running rich as it was popping like mad the other day plus it tries to stall now and again :(

Hoe much are new lamba sensors ??

[bluearmy]

just wanted to add. ICV does fuck all, u can run a sax without them.
dont be silly

[Spanky]

could of put it into paragraphs to break it up a little lol

[bluearmy]

anyway which lamda sensor are you talking about the dirty air one or the clean air one

[saxotourdecorse]

both cause the same symptoms if either are faulty. i think pre 2000 models only have 1.

[davidharvey]

just wanted to add. ICV does fuck all, u can run a sax without them.

What/where is that then?

[kraigleeder]

really helpful mate :)
if its not my fuel filter
ill change that

[vicj69]

well done on this thead! couldnt agree more! i too had this problem and the first sensor i changed was the lambda sensor, his did help the problem a lot but it came back a few days later so i also changed the idle control valve/stepper motor which has fixed the problem completely, mine was probably needing a new lambda and icv, so was a mix of the 2 being fecked!

[chinkostu]

just wanted to add. ICV does fuck all, u can run a sax without them.

haha yes, you can, if you fancy keeping your foot on the accellerator all day

its hardly going to idle by magic, please, just please tell me how it will idle

i changed the ICV on mine and it made a world of difference

[Ste]

Just so everyone doesnt go out buying lambdas.

Each part can cause the same symptoms. The MAP, ICV and Lambda are all likely to give you idling problems that result in either stalling or severe hunting. All will bring on the engine light. The MAP sensor will give a slight drop in power aswel as the idle issues, the ICV will let the car stall - to test if its working remove it from the throttle body and pull the plunger out all the way, put it back and start the car, it will stall a few times then go back to normal when it resets if it never resets its fucked.

The MAP and Lambda are difficult to troubleshoot but the MAP sensor usually gets dirty so a clean might sort it.

Basically what worked for one wont work for another but you can do some error checking yourself to see what it could be. And all the parts are around the £30 mark so cheap on there own but not if you replace them all not knowing whats causing the problem.

[maraalfa]

Spot on Ste, it's not always the lamda, my ICV sorted my idling with a reset to get the revs at 900 and the lamda isn't te answer to resetting my p1613 code and getting rid of the confounded limphome mode cut at 3000 revs, anyone got the fix and no a soft ecu reset doesn't clear it?

[Thecherry0121]

hi there peeps i have a gti 106 and that runs lumpy on tickover and occasionally bogs down when cold i have changed the sensors on the throttle body was just wondering if the lambda would be causing my issues aswell?

[Mochachino]

hi there peeps i have a gti 106 and that runs lumpy on tickover and occasionally bogs down when cold i have changed the sensors on the throttle body was just wondering if the lambda would be causing my issues aswell?

As mentioned above, it can be a number of things mate.

Start off with the free possibilities, clean the ICV as well check it works using Ste's method and the MAP sensor. If they dont sure the problem, get the ECU diognostics done at a garage for like £40 it will tell you any errors that may have come up. Could be the Lambda, could be timing could be alsorts.

[Thecherry0121]

iv tried the ecu diags but the garages machine just says no signal being recieved and they do it free for me so thats a bummer and im really hoping its not the timing as it is intermittant doesnt always run funny on idle its driving me mad though !

[Mochachino]

try another garage then, theyre diog comp must be shit lol.

i wouldnt worry if it idles rough, ive never been in a saxo that idles fine lol

[Thecherry0121]

thats very true all the french cars are lumpy i suppose cheers for the advice mate much appreciated

[lavo-vts]

i am sick of postin about people with their cars stallin or idle problems ;)
i have had a vts and a vtr with the idle problem that millions have, many people come up with solutions that mask the problem such as re setting ecu but the problem will come back, maybe in a day, maybe in a year but it will come back.
the answer is the lambda sensor - basically they are an exhaust oxygen sensor and is the key component in the fuel control loop. its linked to the ecu which measures the oxygen in the fuel mixture. ( again a new fuel pump may cause this problem to go away but it WILL return :wall: ) if the ecu reads a bad fuel mixture from the sensor the engine will cut out. the reading to the ecu will be -shite on any saxo cos they are at least 5 years old. they have a life span of 50k miles or 5 years. but can fail as easy as dirt gettin in them. which is easy as they are located on exhaust downpipe. on many cars the engine management light will come on but as they are saxo's in most cases the light doesnt come on. symptoms of a faulty lambda are - poor idle, bogging down, fluctuating revs. in some cases the ecu will make the car misfire on purpose because of the rich fuel reading from the lambda sensor. however it only reads oxygen levels to give the ecu direction in what to do. for example, to stall the car. ( again resetting ecu will mask the problem)
because it is on the exhaust downpipe, rust or manifold bolts can create a problem. in some cases a fouled spark plug can sometimes cause the oxygen in the exhaust to be low. but this will only register once or twice, and will not cause the engine to stall everytime.
They are as delicate as hell to so buy 1 proper not from a scrappie. even the slightest knock on the cables will wreck it. some people have said to me they have changed the lambda sensor and it hasnt worked but make sure it is not damaged in anyway. or the problem is now to severe .........
heres the bad news - if you have had this problem for a while and have not listened to me and have not changed the lambda sensor regardless, its highly likely u will have wrecked - valve stems, piston rings , cylinders, and therefore a wrecked engine. this is because the engine has been running rich.
it will also have caused shite fuel consumption so u are out of pocket there to. lambda sensors produce a really weak signal on diagnostics too so just because they dont show up as fecked doesnt mean that they are not the problem.
if u have just got the problem take my advice pleaseeeeeeeeeee and if u hava had the problem for a while take it the skip ;)

many people have taken my advice and it has worked everytime unless its too late. (sorry for the length of my rant but this question comes up nearly every day) comments please .........:y::n:

you have absolutely no idea what your talkin about tbh.

[Mochachino]

you have absolutely no idea what your talkin about tbh.

lol, if he did, engines would be very simple without icv, lambdas, and all the other sensors lol

[Mark51]

Just so everyone doesnt go out buying lambdas.

Each part can cause the same symptoms. The MAP, ICV and Lambda are all likely to give you idling problems that result in either stalling or severe hunting. All will bring on the engine light. The MAP sensor will give a slight drop in power aswel as the idle issues, the ICV will let the car stall - to test if its working remove it from the throttle body and pull the plunger out all the way, put it back and start the car, it will stall a few times then go back to normal when it resets if it never resets its fucked.

The MAP and Lambda are difficult to troubleshoot but the MAP sensor usually gets dirty so a clean might sort it.

Basically what worked for one wont work for another but you can do some error checking yourself to see what it could be. And all the parts are around the £30 mark so cheap on there own but not if you replace them all not knowing whats causing the problem.

bet me to it, thank you

[Tsaxovtr]

any 1 got a pic of a lambo senser ??? cheers matt

[laurenceharding]

so do mk2 saxos have two lamba sensors?

[vtr-richie]

yer mk 2's have 2 lambda sensors to explain the lambda sensor si the only thing with wires that bolts into the exhaust so its not hard to find. when my lambda had gone the car reved liek an blown v8, and it bogged like hell,