Not a saxo but all hep appreciated

20th January 2011, 13:39

Ive recently picked up a mk1 clio cheap. its a 1.4 RT.

It broke down yesterday, lost all power goin round an island. it usually idles up and down and sometimes drops really low and shudders like its about to cut out.

so...had the recovery bloke come ot and said the car is over fuelling at the single point injector. So ive replaced the carb, yet it still wont idle at all. if i start it, it just cuts out and dies!

any ideas.?

Thanks

P.s - Ive already posted on 2 clio furoms but had no support what so ever!! (shite furoms)

20th January 2011, 14:05

anyone? all other forums seem to be dead!

20th January 2011, 16:11

sounds like your coil packs shagged.
does it sound/feel like its not firing on all cylinders?
is your engine management light on?

20th January 2011, 16:19

Could be a lot of things mate ;

*If it does eventually turn over then stalls itself the icv (idle control valve might need cleaning) petrol usually works best to get all the gunk of it.

*Have you got petrol in it?

*Check any fuses for blows

*Alternatly check for a spark, take the coil pack off and just 1 plug out, put the plug that you have taken out into the coil pack and earth that plug against the engine. Get someone to turn the car over (only needs to be once) you should see a strong blue spark from the plug, Check all 4 plugs.

* If none of above your fuel pump might be nackered mate.

Like i said mate could be a few things but check all the basics first.
Hope this helps ya mate

20th January 2011, 16:43

thanks lads much appreciated...

it does feel very sluggish tbh. especially after 40mph.
engine management lights isnt on.
I do have petrol in it
Checked fuses
there is definately fuel getting round, so not pump
spark plgs and leads are all fine
and ive cleaned the idle control valve

Still happening - Ill try the coil pack in the morning.

20th January 2011, 17:13

that only leaves the coil pack then mate eh ha, hopefuly its that

20th January 2011, 17:24

fingers crossed! ill pick one up tomorrow.

21st January 2011, 14:30

ok...Update:

Changed throttle cable, HT leads, Distributer cap, Coil Pack and still no joy!!

Any ideas? i have literally give up now!

23rd January 2011, 10:44

been told its the ecu? so how do i go about getting a new one? the car has an immobiliser so what choice do i have now?

23rd January 2011, 10:47

TPS mate i have a valver, exactly the same problems. a tenner later, job done

23rd January 2011, 11:03

try the coilpack it happened on my car but never cut out so i bought a second hand coilpack but that cut out after only a couple of days so ended up paying full whack for a brand new coilpack and has been fine ever since

23rd January 2011, 11:18

Quote:

Originally Posted by LeeDewell0121

been told its the ecu? so how do i go about getting a new one? the car has an immobiliser so what choice do i have now?

go to a renault specialist for a ECU or take to someone who works/no's alot about them.

23rd January 2011, 11:20

double post.. stupid laptop

23rd January 2011, 14:31

does my car even have a TPS? its a 1.4 RT 1993 8 valve.

Changed coil pack already. didnt do anything.

Renault specialist for an ecu too costly? more than cars worth?

23rd January 2011, 14:40

Could you not get it unlocked ?

23rd January 2011, 14:44

im not sure if you can. i dont know much about ECU's... where/what places unlock them?

23rd January 2011, 14:48

Theres a place in hucknall nottingham.
I got mine unlocked from there..
Sent it off got it back the next day, plugged it back in and she fired up beautifully.
It's called bluehawk electronics cost me 90quid i think.

23rd January 2011, 15:05

can any ECU be unlocked? i have a 93' Mk1 Clio 1.4RT 8V

23rd January 2011, 15:19

I'm sure it can.
You'll have to ring them up mate.

23rd January 2011, 15:22

ok mate thanks for your help. apparently my ecu is not reading the new carburettor i put on. so getting my ecu unlocked should solve this right?

23rd January 2011, 15:24

Sorry mate i'm unsure on that one,
No worries mate.

25th January 2011, 15:01

Ok heres an obvious one, Lambda sensor? My old VTS had exactly the same problem if the O2 sensor thinks there is too much oxygen it will dump a load of fuel through the system to counter it, hence why its overfueling.

25th January 2011, 15:35

For what it's worth.. I don't think your problem will be caused by the ECU. And even if it was, unlocking it would only allow it to be used without been 'locked' to the immobiliser. If you are going down that route, you would need to by another ECU and get that unlocked, so you could use it in your car and rule out the ECU. Expensive way to find out though

Not sure on your engine, but it appears to be more some kind of idle control if its over-fuelling and stalling when take your foot off. Dunno what kind of engine management a Clio has, but plugging it on (or taking it to a garage) and ask them to plug it in to read the throttle position at idle and compare it to what it should be seems your best bet?

25th January 2011, 17:36

Ok... Lambda sensor - there isnt one, previous owner had it de-catted.

ECU problem - It was over fuelling at the single point injector so the mechanic said a new carb was needed. so bought that and now it doesnt over fuel, it just doesnt idle and struggles to start now and again. Went out this morning and wouldnt start at all, even with new spark plugs it seems theres no spark..

Almost like the timing is out, making me think its an ecu problem?? getting a new ecu isnt a problem, neither is having it unlocked but will it sort the problem out. ( I can get the ECU from the same car i got the carb from..)

25th January 2011, 18:22

I doubt it, but if you can afford it then the only 100% way to know is to try it. Even with a de-cat you should still have a pre-cat lambda?

25th January 2011, 23:33

strange... i cant find a lambda on it. i changed a few lambda's on a few puntos but cant find one on this clio. :s

really baffled as to what is causing it to be ike this? all help appreciated.

and many thanks for the replys guys!

26th January 2011, 17:15

just a stab in the dark... have u done a compression test??

28th January 2011, 12:38

no mate i havent, i tried another throttle position sensor today and still joy. The New carb is now overfuelling.. the same as the old one i took off. so whats causing it too over fuel?

28th January 2011, 13:06

i went out this morning and tried to start it and now the NEW carb is over-fuelling. the same problem the last one had. so whats causing it?

when i UNPLUG the red connector to the single point injector (so no fuel goes down the throttle body) the ca will start and idle fine untill it runs out of fuel.

so i tried it again and it started and idled and then i plugged in the red connector and it cut out instantly. Ideas??

im baffled.

30th January 2011, 14:23

ok i changed the ECU this morning. Started the car and bingo idle fine and started fine.. however took for a drive round the block and everytime i dip the clutch to change gear or come to a junction it drops dramatically and stalls. i try to start back up but wouldnt untill around half our later. ????