Strange Fast idle problem or not??

**LeeT5** · Tuesday 15th November 2011, 22:01

Just had my car M.O.Td by the stealer and the bloke couldn't carry out a fast idle test unless the clutch pedal was pressed because he just couldn't get the car to remain at 3000rpm for 30s because it kept creeping up. When he backed off a knats ££££ the revs just dropped and he would have to start again.

Then one of the techs tried with his foot planted on the clutch pedal....would you believe it, the idle was stable!?

Can i ask all fellow Phase 2 V70R/S60R owners to try the above and see if your cars do the same. Its got me stumped.

With the clutch pedal down you can hold the revs in any postion, yet release the clutch pedal and the revs will slowly increase and you will need to back off. Any other car i have done this on the revs would come down relative to throttle position, yet my car, the revs drop off to idle and you have to start again.

I wanna know if anyone elses does this or is it just mine?

Before anyone asks....there are no DTC's and the MAF and fuel pressure sensor were both replaced in the last 3 months, as was the ETM cleaned out also.

thanks and i look forwards to the results

**volvokid** · Tuesday 15th November 2011, 22:14

Will have a check buddy

**t5 stealth** · Tuesday 15th November 2011, 22:17

sounds like throttle body prob..... ?

**LeeT5** · Tuesday 15th November 2011, 23:05

Originally Posted by t5 stealth

sounds like throttle body prob..... ?

I don't do guessing, too expensive fella!

**t5 stealth** · Tuesday 15th November 2011, 23:53

Originally Posted by LeeT5

I don't do guessing, too expensive fella!

then pointless asking on here as we cant see it in the flesh...so its all guess work.....
and i did add a ? at the end,i wasnt saying it is throttle body.........

**LeeT5** · Wednesday 16th November 2011, 18:49

Originally Posted by t5 stealth

then pointless asking on here as we cant see it in the flesh...so its all guess work.....
and i did add a ? at the end,i wasnt saying it is throttle body.........

No it's not pointless asking on here because if you read my thread start then you will see that i specifically asked for owners of S60R and V70R phase 2 models to check! So you T5 and 850 owners need not bother!

thanks for your input anyway...

**t5 stealth** · Wednesday 16th November 2011, 18:56

Originally Posted by LeeT5

No it's not pointless asking on here because if you read my thread start then you will see that i specifically asked for owners of S60R and V70R phase 2 models to check! So you T5 and 850 owners need not bother!

thanks for your input anyway...

lol whatever.

**LeeT5** · Wednesday 16th November 2011, 19:22

Originally Posted by t5 stealth

lol whatever.

Don't take it personal fella, i wasn't intending on upsetting you. I just wish people would read the question before replying thats all. Saves me and others trawling through useless replies. If you can't help, thats fine

Also, if it was pointless me asking then i ask you...What's the point in VPCUK?
I'm sure were all here to help people including myself, but threads would be alot cleaner and would take a hell of a lot less time to read if peoples replies were relevant.

To answer your point about it may be the throttle body...well yes, it may well be the throttle body but that wasn't what i was asking. With no DTC's, 35mpg at 70mph and acceleration totally normal, i doubt very much if its the T'body.
I have a BSR code reader that can read codes as per VADIS language for example - ECM 1234. There are no codes at all stored.

All i was asking was that if any fellow R owners could perform the little test as i first posted and let me know how they got on. If 100% people report No problems with high idle stability with the clutch pedal down or up, then i know i have a problem. however, if some people report the same symptoms as me then i know that there is an issue that needs to be addressed.

I am going to remove the BSR map at the weekend to see if that makes a difference, but i doubt it will.

I know the clutch pedal switch is related to cruise control and therefore throttle control so i'm wondering if i need to be looking at the pedal switch as a faulty component, however, the cruise control works fine.

Any help would be greatly appreciated.

**t5 stealth** · Wednesday 16th November 2011, 19:40

Originally Posted by LeeT5

Don't take it personal fella, i wasn't intending on upsetting you. I just wish people would read the question before replying thats all. Saves me and others trawling through useless replies. If you can't help, thats fine

Also, if it was pointless me asking then i ask you...What's the point in VPCUK?
I'm sure were all here to help people including myself, but threads would be alot cleaner and would take a hell of a lot less time to read if peoples replies were relevant.

To answer your point about it may be the throttle body...well yes, it may well be the throttle body but that wasn't what i was asking. With no DTC's, 35mpg at 70mph and acceleration totally normal, i doubt very much if its the T'body.
I have a BSR code reader that can read codes as per VADIS language for example - ECM 1234. There are no codes at all stored.

All i was asking was that if any fellow R owners could perform the little test as i first posted and let me know how they got on. If 100% people report No problems with high idle stability with the clutch pedal down or up, then i know i have a problem. however, if some people report the same symptoms as me then i know that there is an issue that needs to be addressed.

I am going to remove the BSR map at the weekend to see if that makes a difference, but i doubt it will.

I know the clutch pedal switch is related to cruise control and therefore throttle control so i'm wondering if i need to be looking at the pedal switch as a faulty component, however, the cruise control works fine.

Any help would be greatly appreciated.

im not even gona get into arguements over it,
my point was that iv only been working on cars for nearly 30 years as a mechanic,i fix loads of cars and work on loads of cars,even tho i dont own them,
i was just trying to help or pointers etc,
as you mention that the t,body has already been cleaned...
from experience if its been cleaned then it indicates it may of had an issue,when they have been cleaned then they dont usualy last long before the problems arise again (from experience)
t,bodys are a big problem on a lot of manufacturers,
and as for no codes shown,that dont meen anything,some readers read well,some dont...see it a lot ........
so to reply to if you have upset me.no you havnt,just your reply seemed a bit sarcastic when someone who has a bit of knowledge trys to help and its thrown back in there face....as you say...vpcuk is a place of help and knowledge etc.i agree.
so enough about this now and wasting forum space etc.

**M-R-P** · Wednesday 16th November 2011, 19:50

What is it today? I think we all need to hold hands an sing...
Naaah,

Thought I might have to get my Anne Widdecombe picture out again!
Back to business...
Throttle body could be an issue but so could the throttle pedal. It has a similar mechanism which, I've heard, can get contaminated with fluff and dirt, kicked-up from the carpet.
I have a similar issue... While idling, if I press the brake, the revs drop. Not much but you notice it. In the vein of helping out, I'll go do the clutch thing in a sec.
Yes I know it's not an R but it has similar gubbins and has done 182700 miles and if it can go wrong it has or will shortly.
Let you know in a bit, mate.

**t5 stealth** · Wednesday 16th November 2011, 19:53

Originally Posted by martinrpeachey

What is it today? I think we all need to hold hands an sing...
Naaah,

Thought I might have to get my Anne Widdecombe picture out again!
Back to business...
Throttle body could be an issue but so could the throttle pedal. It has a similar mechanism which, I've heard, can get contaminated with fluff and dirt, kicked-up from the carpet.
I have a similar issue... While idling, if I press the brake, the revs drop. Not much but you notice it. In the vein of helping out, I'll go do the clutch thing in a sec.
Yes I know it's not an R but it has similar gubbins and has done 182700 miles and if it can go wrong it has or will shortly.
Let you know in a bit, mate.

lol please not the anne widdecombe pic.
as you say pedal could also be an issue,
there is loads of things that could be an issue......
lol

**Jamest5r** · Wednesday 16th November 2011, 19:59

Does the bsr mapping not have a throttle sensor map that can be adjusted? just an idea as i only own older car's

**M-R-P** · Wednesday 16th November 2011, 20:00

Well nudge my kidneys with a croquet mallet! I got the same problem!
Gonna subscribe to this thread in the hope it's a quick fix!

**LeeT5** · Wednesday 16th November 2011, 20:12

The Tbody hasn't been cleaned because of a fault or running problems, i cleaned it myself because i was in that area. It was not that dirty and its works just the same if not better.

**LeeT5** · Wednesday 16th November 2011, 20:19

LMFAO Martin....

Thanks for doing the test and don't take this the wrong way, but i'm glad you have the same issue!

To clarify...Clutch pedal up - throttle held at 2500rpm (revs increase out of control and drop off if you lift off so much as a knats ££££)
Clutch pedal down - throttle can be held at ANY rpm and stable.

Is that what you found Martin??

**LeeT5** · Wednesday 16th November 2011, 20:26

Originally Posted by martinrpeachey

What is it today? I think we all need to hold hands an sing...
Naaah,

LMFAO...nice one! Cheered me up that did!

Seems this issue is also related to 300bhp T5 phase 2 also!?

**volvokid** · Wednesday 16th November 2011, 20:26

Lee i had a quick go at this tonight, as i had a screaming baby to see too. I can easily hold the car at 3k without using the clutch. The engine was cold, if that makes a difference i dont know

**M-R-P** · Wednesday 16th November 2011, 20:32

Originally Posted by LeeT5

LMFAO Martin....

Thanks for doing the test and don't take this the wrong way, but i'm glad you have the same issue!

To clarify...Clutch pedal up - throttle held at 2500rpm (revs increase out of control and drop off if you lift off so much as a knats ££££)
Clutch pedal down - throttle can be held at ANY rpm and stable.

Is that what you found Martin??

100% mate, 2500 rpm or 3000 rpm, most of the rev range in fact!

Originally Posted by LeeT5

LMFAO...nice one! Cheered me up that did!

Seems this issue is also related to 300bhp T5 phase 2 also!?

Bloody Ford, what's wrong with a metal cable? stupid-multiplexed-124-signals-down-six-bits-of-wire-sassin-rassin-frassin.....

**LeeT5** · Wednesday 16th November 2011, 20:33

Originally Posted by jamest5r

Does the bsr mapping not have a throttle sensor map that can be adjusted? just an idea as i only own older car's

What do you mean James?

AFAIK the BSR map is programmed to change fuelling, turbo boost, throttle response and other things. It can't be adjusted. Its just a mapped programme that you install to the car via the OBD port. The OE map is removed and stored on the hand held PPC whilst the BSR map is then put in its place. Simple but effective.

**LeeT5** · Wednesday 16th November 2011, 20:37

Originally Posted by volvokid

Lee i had a quick go at this tonight, as i had a screaming baby to see too. I can easily hold the car at 3k without using the clutch. The engine was cold, if that makes a difference i dont know

Sorry buddy but i need you to try it engine warm. Try 2500 rpm first with clutch pedal up. Can you hold it exactly at 2500 for 30 seconds? If so, your car isn't doing what mine is. Can you also try it with the pedal pressed down and see if its any different?

....when the babies asleep of course