Is it possible to do away with the isv as my new throttle body(see big tb thread) has no throttle position switch and i believe this controls the isv?? Read somewhere about using a mk1 8v 1 but how will i wire it up? Any help appreciated
Some people use the auxilary air valve on mk1 16v conversions, some don't bother - it'll be a tw*t when it's cold if you don't use one I would think.
I haven't got one and it idles bang on 900rpm straight from cold. Admittedly it took me two days of pissing about with the fuelling/warmup enrichments, which you can't do To be fair, I don't think my ISV worked before it went binwards anyway. You'll probably find that you'd need to up your idle speed a bit when it's cold.
I`ve used mine with no ISV and it was a pain in the arse! I`d be tempted to try and get the switches working on it personally. If you use it in winter with no isv it`ll be a complete dog!
But as gvk said,i can use a mk1 bypass air valve but im unsure on how to wire it up There must be someone on here whos done it to there mk1 16v?
It`s a bodge for cold starting though, rather than an idle stabiliser, after saying that at least your car runs
All it needs is an ignition feed for the bi-metalic strip inside. It will only help with cold running and is a bit of a bodge.
My ISV on the first 16v i had was crap. During the colder months it ran like a female dog on startup with it disconnected, but on warmer mornings/days it ran fine. Suck it and see, as they say. Disconnect it and see how the car runs.
As far as I remember the aux air valve is feed with 12V from the fuel pump relay output and earths through a normal earthing point, on the MK1 anyway. Edited by: Golden
