Running without stepper?
Running without stepper?
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Discussion

haircutmike

Original Poster:

22,511 posts

235 months

Thursday 24th March 2011
quotequote all
While trying to set up my idle redface, I noticed if I pull the stepper wiring connecter, it idles fine.

Just going fo a spin to see how it is in real life, not just in te garage.

Are there any drawbacks or harm to running disconnected?

Barkychoc

7,848 posts

235 months

Thursday 24th March 2011
quotequote all
It can be inclined to idle a bit low / stall when its cold but it doesn't last long and is easily tolerated in return for a stable idle when warm.

roysum

961 posts

220 months

Thursday 24th March 2011
quotequote all
haircutmike said:
While trying to set up my idle redface, I noticed if I pull the stepper wiring connecter, it idles fine.

Just going fo a spin to see how it is in real life, not just in te garage.

Are there any drawbacks or harm to running disconnected?
There might be an issue when re-starting, ?? not totally sure.

R

miniman

30,203 posts

293 months

Thursday 24th March 2011
quotequote all
Barkychoc said:
It can be inclined to idle a bit low / stall when its cold but it doesn't last long and is easily tolerated in return for a stable idle when warm.
Is '+1' tolerated on here anymore?

If so...

+1

haircutmike

Original Poster:

22,511 posts

235 months

Thursday 24th March 2011
quotequote all
Just come back from a run.

Isn't it funny when you adjust in the garage, engine hot etc, it all seems fine.
Go down the road a mile and it idles at 1800 rpm for about 20-30 seconds then drops to about 7-800rpm!

I have set Sunday morning aside for the "final" fettle on the idle front starting stepper, throttle pot etc.
We have a good evening planned for Saturday night, beer so I shall not be in the mood to be messed around, I hope it's listening smash.

taylormj4

1,635 posts

297 months

Friday 25th March 2011
quotequote all
Yep, mine does this regularly. If I push the clutch in whilst cruising at 1800rpm, the revs just stay there. Stepper cleaning has no effect. Possibly an air leak somewhere ?
The only thing that sorts it is to come to a complete halt and wait a few seconds.
Matt

blitzracing

6,422 posts

251 months

Friday 25th March 2011
quotequote all
Its designed to do that, it stops the wheels locking up between downshifts as it holds the engine idle higher as long as the car is moving.