Scottish Elises

As the car has been sitting on axel stands for a few weeks the battery has gone flat, as electrics are not my thing and I'm a lazy sod can I just connect the battery charger up to the battery in the car without removing it from the cars electrical sys, my guess is yes but I don't want to set it on fire

Yes, just leave it in the car and connect up the charger.

^+1

The alarm will go off though, so have some ear defs on (Wonder how I found that one out...!)

Disconected the negative side of the battery and the alarm made some beepy type noises but I used the stick and that shut it up charged the battery for a few hours and the car started first time.

Hoorah!!!





















But then it zoomed all the way up to 6000rpm and thats when I turned it off started it a few more times and still the same.

Any Idea's whats broken now ?

Could be a sticky TB?

Cheers
C

Put the battery on charge over night , I may be talking p**h but I think I read about a similar problem and the guy had a knackered battery but it had been bump started

The engine will only rev if it has fuel and air in the right proportions (Or there abouts) You have an air leak somewhere. (ie your throttle is stuck open as Craig said...) Nothing else can do that as it would just flood if it just got loads of fuel.

that was my guess but it was dark and I couldn't see its got a plastic TB which IIRC is prone to sticking I may just have to get a bigger one

(once I have put the front togther)
although it was so long ago i took it apart I'm not sure if I remember how

Perhaps the IACV settings are wrong.

Ignition on, pump pedal full travel 7 times quickly, ignition off, wait 30s. Then, ignition on, pump pedal travel 7 times slowly (1s down, 1s up), ignition off, wait 30s.

Unlikely that the throttle has stuck since you last drove the car I think.

Cheers,
Robin

Would the IACV pass enough air for 6k RPM?

RICHARDHUMBLE wrote:Would the IACV pass enough air for 6k RPM?

and climbing (slowly) 6K RPM is just where I sh4t it

my car does this too with a flat battery, but only climbs to 4k. As soon as the battery has a decent charge in it it returns to normal.

I'd leave it on charge for a good 24 hours and see if it's still got the problem - chances are it'll go away....

IACV stuck CLOSED can jam the throttle slightly open, this happened to my S2 111S with ally TB.
The stuck IACV causes a vacuum to be pulled in the inled manifold and sticks the throttle just off it's seat. It's amazing how little throttle opening you need for 6K rpm on no load...

Easy diagnosis for this is the throttle seems sticky when engine running but OK when engine off.

if you think the throttle is sticking, before you go buying a new ally one look under the pedals and make sure the cable sheath is in the socket at the back of the pedal, mine got caught here and it did the same sticking revs thing. nothing ot do with the plastic body, which is still fitted and works fine.

I don't know whether or not the IACV would account for that, but it's easy to reset as above, so why not try it!

Cheers
Robin