David - mine goes there as it starts then drops back to the 900(ish) level soon after..

 

QUOTE(Marcellus @ Jul 31 2006, 08:21 PM) <{POST_SNAPBACK}>David - mine goes there as it starts then drops back to the 900(ish) level soon after..

Marcellus - how quickly does yours return to 900? 1-2 seconds or longer

Mine seems to go up...but rather than settling back to 700-900 it seems to sit at 1200-1300. I waited about 5-10 seconds but it did not go back to 700-900. It seems to maintain the higher idle speed until I intervene by driving off!

 

david within seconds!!

 

Mmm - I think I will have to properly check this out!

 

Mine does it too, think it's a management thingy. Mine drops to 900 after about 25 seconds and that's when I drive off...

 

QUOTE(Huigie @ Jul 31 2006, 07:46 PM) <{POST_SNAPBACK}>Mine does it too, think it's a management thingy. Mine drops to 900 after about 25 seconds and that's when I drive off...

mine also does this

 

I may be wrong, but surely this is the Auto Choke, do cars still have these

Not had a new car before

Start taking the

, i don't mind

Ant

 

mines goes to 2K on ignition then drops to800 within 2 secs and stays there, hope this helps

 

It will depend on temperature but what you describe sounds perfectly normal to me.
As a matter of interest my CTR idled at 2000RPM when first started.

 

Normal

 

QUOTE(Ant @ Jul 31 2006, 09:09 PM) <{POST_SNAPBACK}>I may be wrong, but surely this is the Auto Choke, do cars still have these

Not had a new car before

Start taking the

, i don't mind

Ant

Ant,

Auto chokes were fitted to cars with carbs (you're proabably old enough to remember these!)., but cars with direct injection rely on the ECU to adjust the air/fuel mixture......so endith the lesson of the day!!

I have noticed that the car starts up with hgh revs, but it drops back to around 900rpm by the time you get your seat belt on.

 

My car goes 2500 ignition - then 1300 for ~25+ seconds and then drops to around 800 - I always thought this is normal and even good - I had similar thing on my 95'+ Escort also

 

Sounds normal to me my ST does the same when started.

Feel old now as first car had a manual choke

, youngsters today don't know their born with the car doing all the technical bits for them, when I was a lad etc etc

 

Sounds normal to me, depends on the weather as to how long it stays at higher idle longest is ~ 30seconds. When I drive off and then stop at a junction it's back to the normal ~ 900rpm. As for young uns (not sure i count tho) I had to use a manual choke on my first car - a metro of all thing's oh how times have changed

 

It is perfectly normal David, they all do it.

Programmed in to ECU.

 

QUOTE(ststeve @ Aug 1 2006, 08:00 AM) <{POST_SNAPBACK}>Sounds normal to me my ST does the same when started.

Feel old now as first car had a manual choke

, youngsters today don't know their born with the car doing all the technical bits for them, when I was a lad etc etc

I remember that.....

Starting a car from cold used to be an artform in those days.

 

The cold start strategy is quite interesting actually.. part of it shares something very similar to something used on rally cars

 

SOme of you probrably remember having to manually pump the fuel to prime the witsit as well!!

 

I used to hate turning the engine over by hand while adjusting the choke with my other hand.

 

All,

Thanks for the responses! I have come to the conclusion that I have little to worry about!

Regards

David

 

Sorry didn't see this one, yes it's normal, it's to fire the cat. up and enter closed-loop control ASAP.

 

QUOTE(Fordtech. @ Aug 13 2006, 12:59 PM) <{POST_SNAPBACK}>Sorry didn't see this one, yes it's normal, it's to fire the cat. up and enter closed-loop control ASAP.

It's not so much the engine speed that heats the cat up quickly, it's the fact it's firing after TDC (like anti-lag) that puts a huge amount of heat down to the cat.. very cool

 

i carnt believe this question, i will keep quiet i can only think of sarcastic things to say

 

I was told (and I'm not sure how true or relevant this is) that a similar thing on my old XR2i (zetec) was caused by a system that injected air into the exhaust manifolds to get the temp of the exhaust gasses up for the cat to work properly as quick as possible.

Not exactly sure if this is true but it explained the initial noisy idling on startup followed by an instant smoothing a couple of mins later pretty well.

 

That's pretty accurate Andy

There have been various methods over the years to get the cat up to temp as quickly as possibly.. the latest method as used on most cars, like the ST, is cool..