Idle Sticks at 1900rpm!

Idle Sticks at 1900rpm!

Author
Discussion

Tiggsy

Original Poster:

10,261 posts

252 months

Monday 28th April 2003
quotequote all
ok, i had a problem with the idle dropping, rising, dropping....stalling! so i cleaned the stepper- seemed a bit better but not perfect so i cleaned the throttle butterfly and housing (very fiddly)....now it idles at 2000rpm!

i thought it may be a sticky cable but if im sat still at 1900rpm and engage the clutch a little the revs drop- i would have thought if the cables stuck open then the car would pull forward at those revs?

any ideas? could my ham fisted throttle cleaning have buggered it up?

Tiggs

Tiggsy

Original Poster:

10,261 posts

252 months

Monday 28th April 2003
quotequote all
how does the stepper get "sealed".....i just screwed it back in?

Tiggs

Tiggsy

Original Poster:

10,261 posts

252 months

Monday 28th April 2003
quotequote all
ok- help the morron time! PTFE tape? what is it and where will it be in B and Q! (i dont mean which ilse- just what section )

just to cheer me up......once i sort this should a TVR idle nicley like any normal car? im not stunned at the idea of having bought an £18k car that needs me to cover the gas at lights to stop it stalling!

T

Tiggsy

Original Poster:

10,261 posts

252 months

Monday 28th April 2003
quotequote all
ok so i do the SM again (i am just cleaning the dome on the end or do i dunk the metal section) (dome and spring it) in some whitespirit and give i t a good rub- can i be to rough to it?)

then i puts some PTFEFE stuff on the thread and wack it back- then check the jubile clip areas on the air pipe to the throttle chamber with some cold start- i assume if they leak i just tighten? or does PTFEFET work here to?

then i unplug the ECU?????? flippin heck! is that easy (i will consult the bible) any tips or is the bibles descrption enough?

Tiggs

Tiggsy

Original Poster:

10,261 posts

252 months

Monday 28th April 2003
quotequote all
jools- that makes sense- let me expalin the problem more clearly as maybe you'll spot something im missing:

Prob 1

Engine would idle at 1000rpm, then revs would fall to 200-300 and the car would "catch it" and rev back to a 1000.....few seconds later and it does it again, after 20-30secs it would not catch it and the revs would fall to 100 then conk out!

cleaned stepper- still did it

cleaned throttle butterfly and now it does this:

Prob 2

Either does what i described in prob 1, although it seems to catch it sooner....ie. the revs only drop to 500 before they return to 1000 hence it doesnt stall (although left doing this for over 45sec-1min it would stall at some point)

or

as i brake for lights, clutch in, the revs fall from wherever they were but stick at 1900. If left for a while they drop to normal (after 20-30secs) and back to prob 1!

if i give it a good hard blip they will sometimes drop to 1900 still or sometimes fall to 1000rpm...and prob 1!

if i let the clutch out a tad the revs drop, the car doesnt move....and then they go to prob 1!


Tiggs

ps- its a good job this car is bloddy fast otherwise i'd be doing my head in!!!

pps- buying tip- buy a car thats never seen rain = mint chassis and wishbones..........but a roof that leaks like like a cullander with extra big holes in!

Tiggsy

Original Poster:

10,261 posts

252 months

Monday 28th April 2003
quotequote all
mav,

are you saying thats what i do! or are you just clarifying the battery point in general?

am i being thick here....dont answer that!

T

Tiggsy

Original Poster:

10,261 posts

252 months

Monday 28th April 2003
quotequote all
is it a simple job? unplugging it?

not gonna unplug the wrong bit am i?