MS guys - Fast idle valve?

[tim_s]

been playing with my pwm idle valve today and its not really working right. What's the best source for a simple on/off fast idle valve? mine idles at about 500rpm when cold (and annoyingly dies when you touch the throttle), 800rpm when warm. don't really want a veedub aux air valve, would prefer something cheap and simple i could plug into MS and set to turn off at a specific coolant temp.
Cheers
tim

[Ant]

Golf Aux air valve is the cheapest and easiest option Tim, you can use MS to turn the heater element on and then work out the lead in time required to give the desired chacteristics.

make sense-ish dude ?

[tim_s]

Golf Aux air valve is the cheapest and easiest option Tim, you can use MS to turn the heater element on and then work out the lead in time required to give the desired chacteristics.

make sense-ish dude ?

yeah, ish! so you'd use the MS to shut the valve when warm? hadn't thought of that cos on the veedub it came on with ignition, and slowly shut itself over a few mins as it heated up. that the right one im thinking of? had one on my mk1 gti?
prob is it worked on the golf cos it was right near the exh manifold and attached to engine so got hot quick and shut itself even without the 12v when the engine was warm. i've got nowhere on the bm block to mount one, so i'm worried that if i do a warm start, the valve will be open and take a few minutes to close off of MS? have i got that right?

is it the only cheap/easy option you reckon ant?

[Ant]

cheapest soloution is a wax-stat, but we all know how reliable they can be

Mk1 gti style valve is spot on, and can be remote mounted anywhere

[blingsta]

Ant, does this mean that with m/s, on cold mornings, car wont run very well from cold?

[tim_s]

Ant, does this mean that with m/s, on cold mornings, car wont run very well from cold?

depends what you do for idle! MS is theoretically capable of controlling more or less any idle device, so as long as you put enough time and effort into it it will be at least on par with the factory system. lots of people running MS just ignore the poor cold running without an idle device and don't bother with one - I use my car as a runaround so I need a good cold idle. I'm sure if you get an Ant MS solution, the idle will be spot on.
I don't have lots of time and energy to devote to this problem on mine, so just want a quick and simple solution. The golf valve is pretty good in that respect, but I'm a bit reluctant as I wanted a device that MS could have complete control over, which isnt really the case with the golf valve as they shut slowly (a few minutes) when you give them 12v.

[tim_s]

bollocks. just bought one of these from my favourite veedub breaker (volksmania) and it doesnt work properly. only half-shuts when on 12v for a while, still lets some air in. gets hot though. all too familiar, have never liked these things! will have to do the 40 mile round trip again to pick up another one, wish i'd tested it while there
Ant, do you know if there's any adjustment on these air valves, there's a small nut on the back i thought i might play with before returning it?

on an unrelated note, do you have any idea why my car still runs (very nicely i must add, if a bit tamely) with motronic controlling the sparks? I have no AFM so was expecting it not to work on motronic as it has no load signal, but in fact, the sparks are better on motronic than my in-progress MS one. is there any easy way to get the same sparks map into MS? I looked in the bentley, but there's nothing there. my advance timing light is not accurate enough for this either, i might ask sheps next time i'm on his rollers though but i'm not sure how accurate we'll get there either.

[jamesc]

Apologies for the maybe dumb question, but do you still need this with a turbo or should it feed straight into the TB?

James

[Ant]

"need"

well debatable, can you live with starting the car, then holding the rpm @ 1.2K for 20 seconds, after that mine idles perfect on the warm up settings.

TBH, wityh FI you want as many leak sources removed from the system as poss James.

[jamesc]

"need"
TBH, wityh FI you want as many leak sources removed from the system as poss James.

Thats what I was thinking, I think I will go without. My cars not a daily driver so its not too much of a problem.

Cheers, James

[e30_Turbo]

I have no additional idle control and at it's worst you just need to warm it up manually, 20/30 secs fast idle and all is well!

James, I'm getting stuck into the V3 today, although not even finshed the power stuff yet, still plenty of hours left to get it finished tonight

[jamesc]

Cool. Slowly building mine too when I get some time spare here and there

[e30_Turbo]

Just completed the power supply and earth and it works!!! First time too, get in there!!

PM me your number and we can help each other out if needed, no worries