Dropping revs NOW WITH VIDEO! FIXED! :D

16th June 2011, 19:19

If i let off the revs to brake and come to a stop, they will drop that low the car nearly stalls itself.

I've changed MAP SENSOR, IDLE CONTROL VALVE, CLEANED THROTTLE BODY.

What is next?

Has it got like a anti stall sensor or something like that? maybe that could be faulty?

NOW WITH VIDEO :

View My Video

I rev'd it too 2,500rpm and the rest its reving up and down on its own

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16th June 2011, 19:20

new engine

16th June 2011, 19:21

Quote:

Originally Posted by carlsmith715

new engine

helpful spam

16th June 2011, 19:39

mayb temp sensor

16th June 2011, 22:46

Ive had the temp sensor changed too

16th June 2011, 22:50

next is a garage mate. it could be something silly though but then again something major.

16th June 2011, 22:52

Quote:

Originally Posted by stevo1600

next is a garage mate. it could be something silly though but then again something major.

Ive had the headgasket changed JUST i did have the idleing problem before slightly but now its cut out on me 3 times

Ive got a dodgey alternator connector as some twat has snapped the safety thing on the alternator when fitting the new one, I cured it with tape, but even then the car NEVER cutt out on me

Im really pissed off with the car at the moment everything is basically changed on it and yet im still have problems ?

Could it be lamba sensor or that throttle sensor near the inlet????

16th June 2011, 22:55

have you taken it out for a good blast? sounds silly but maybe the battery has lost some charge. it affected my idle a while back, i checked how much power was in my battery on my battery charger and was almost out of juice, charged it up and idled fine. that alternator wire could be the problem. it needs re-connecting propery either solder or crimped.

16th June 2011, 22:57

Quote:

Originally Posted by stevo1600

have you taken it out for a good blast? sounds silly but maybe the battery has lost some charge. it affected my idle a while back, i checked how much power was in my battery on my battery charger and was almost out of juice, charged it up and idled fine. that alternator wire could be the problem. it needs re-connecting propery either solder or crimped.

I took the car out for a good run thats the 1st time it cutt out on me! The battery is newish mate when i had the car, its not the connector from the loom side its the safety catch thing on the alternator side of things.

I get no engine management light come on nothing like that so i cant put my finger on the problem that way either

17th June 2011, 08:06

Dropping revs like that is normally caused by a dirty or broken ICV, is it even plugged in?

17th June 2011, 11:40

Quote:

Originally Posted by Bikekid450

Dropping revs like that is normally caused by a dirty or broken ICV, is it even plugged in?

Its brand new mate, Whats that thingy near the ICV not map sensor the one up from that.

It turns out when they finished the car they jet washed the engine bay so maybe some sensor was wet, ive taken it for a good run today and its not cut out. But a slightly shitty idle is still present : (

17th June 2011, 16:11

Ive now got a video of this i rev'd it to 2500rpm and the rest its doing itself

whats wrong with the fucker lol

http://tinypic.com/player.php?v=17sfae&s=7

View My Video

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17th June 2011, 17:59

The one near the ICV is the throttle position sensor, I would either try that or coilpack maybe.

17th June 2011, 19:22

Quote:

Originally Posted by Vtr_Cam

The one near the ICV is the throttle position sensor, I would either try that or coilpack maybe.

Would either of them cause the problem thats in the video?

17th June 2011, 22:15

Just thought aswell do these vtrs have like a anti stall sensor or something like that? Maybe that could be playing up if its got one?

17th June 2011, 22:19

coil pack is my bet now ive seen that

17th June 2011, 22:34

Quote:

Originally Posted by stevo1600

coil pack is my bet now ive seen that

Weird man, you ever seen it do this before?

That dropping up and down was doing that shit itself :s Then after many times doing it, finally idles fine again :s never had this before on any of my cars i have owned

Could it be the ecu at fault? Could it be kicking in anti stall or something then reving itself????
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Ah just like to add i then drove off then i came to a holt and it started again, so i switched car off turned it back on then it was fine again

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18th June 2011, 09:51

It says to me the ICV works.

The car is telling the ICV to do stuff and it is.

One thing I would check - the throttle cable at idle should be loose.

If no slack, the butterfly can be a tiny bit open (this would idle the car) - problem here is you have a seperate idle system and the two can fight it out.

18th June 2011, 13:26

Unplug the battery for at least 10 minutes, then plug back on and try that.

The coilpack wouldn't cause revs to bounce up and down like that, the coilpack would make it sound like a right tractor and sluggish when your pulling away. Running on X amount of cylinders.

Lambda sensor? A very very long shot, air leak in exhaust/inlet mani?

18th June 2011, 17:25

Jeff - i will check that cable ta mate.

Dom - i will try the battery thing, Also i will just buy a lamba sensor both of them sod it. dads in trade so i get the parts what they buy them in at aswell as his staff discount

I bought a brand new ICV about a month back. MAYBE this has gone faulty? So dads taking it back on monday and going to swop it.

I hope this is the last of it with this car, ive spent shit loads of £££ on it engine parts wise everything is changed on it damn it should be the best running vtr engine going.

19th June 2011, 15:32

The weird thing is that idle is not all the time? Its only every so often like sometimes it wont even do it for like a day strange

19th June 2011, 16:31

Hi mate my vts is misfiring slightly and does the same as urs on idle occasionally and its the coil pack broken so may be worth checking that

19th June 2011, 16:53

mates GTi did that after changing the icv and not putting a small seal back in, so air was getting out and fooking around with the car

19th June 2011, 17:02

Hmmm, the seal is still there, i dont understand why it does it one minute then not the next so i dont know what it is, If it was the ICV then surely it would be doing it all the time? Likewise the coil pack? :s

20th June 2011, 18:46

Now replaced the new icv with another new one, it idles slightly shaky, But i have noticed drives side foot well judders so maybe the exhaust is blowing there or something causing it to idle or do what its doing in the video???

20th June 2011, 22:29

Checked this out further tonight, it seems like in the drivers footwell could be were it joints to front pipe ( not sure ) its like spluttering would this cause it to idle funny like in the video?

21st June 2011, 10:30

Dude! My car is like that too! Somehow it gets worse when it's raining I think.

21st June 2011, 10:40

Strange, im going to try the Throttle position sensor next. see if that sorts it!

21st June 2011, 19:59

Anti-stall? You've been watching too much Formula 1!

24th June 2011, 22:17

Quote:

Originally Posted by VTS123

Anti-stall? You've been watching too much Formula 1!

Yeah some cars do have anti-stall and do the same thing that my vtr is doing in the video.

Anyway update, ive changed the throttle position sensor, i thought it had worked but it has not

BUT i have been playing with the throttle cable and when i was playing with it, it was doing exactly the same thing as it was doing in the video more frequently so maybe the throttle cable is not set up right? Does anyone know were they should be set?

25th June 2011, 15:35

had this happen to me on a clio and changed alot of things in the engine bay but after taking it to renault they changed a fuel regulater and it stopped my bouncing idle and cutting out

25th June 2011, 18:36

Looks to me like a coil pack, might be worth getting a merchanic to have a look at it. I had a similar problem with my motorbike as the engine wasnt getting warm quickly, if you give it a good run does it sort itself out?

26th June 2011, 15:46

I don't think its the coil pack as it would be doing it more often, when i was playing with the throttle cable it was actually doing the exact same thing as it was doing in the video so maybe the throttle cable is not set up right.

1st July 2011, 00:16

Fixed!

1st July 2011, 00:28

Quote:

Originally Posted by ChAdS

Fixed!

what was it mate my cars doin the same its pissin me off!

1st July 2011, 00:35

Quote:

Originally Posted by Ben_SaxoForte

what was it mate my cars doin the same its pissin me off!

Mine was the Crank sensor mate, Fit the new crank sensor then you will need to take it to a garage as it may have stored a code on the ecu get them to clear it. Job done! I have a crank sensor forsale in classified ads with the plastic housing the one you will need if its the silver top 98bhp engine in your car?

1st July 2011, 01:05

Mine does this occasionally as well, how much was a new crank sensor?
Just wondering if it's worth the dolla

1st July 2011, 13:45

Quote:

Originally Posted by Chimaira

Mine does this occasionally as well, how much was a new crank sensor?
Just wondering if it's worth the dolla

Your better off getting a code reader on the ecu, as sometimes it can be coil pack.

But if it is crank sensor i can sell you one with plastic housing fully working for £10 shipped 1st class recorded

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