What does this pipe do?
What does this pipe do?
Hi - I just prepared my car for it's journey to the new owners house and noticed a split rubber pipe which leads from below the carb to after the air filter. I have fixed it by clipping off each bad end and making up the length with a piece of electrical cable outer as that's all I had to hand, but what does it do? It certainly doesn't run right without it connected. As far as I can tell it would suck in extra air when idling, and comparatively less air when running flat out as there would be a more of a vacuum between the air filter and carb at high speed. Is it called an idle correction pipe? It sometimes comes loose which is why I checked it, and the car is a bit hesitant in traffic when it's loose.
- JayW
- 1K Away
- Posts: 1590
- Joined: Thu Dec 07, 2006 6:40 pm
- Location: Now listen here you mullet...
- x 13
Re: What does this pipe do?
It recirculates crankcase gasses to the inlet manifold under vacuum i believe.
I have zero patience for your tedium.
-
- Over 2k
- Posts: 2695
- Joined: Sun Sep 02, 2012 9:54 pm
- Location: South Lincs
- My Cars: 90 Bx Tzd turbo ven red 295k
74 D Super 5 black
05 Volvo V50 2.0d 180k
65 Peugeot Boxer work van 280k - x 136
Re: What does this pipe do?
And if its loose or disconnected or broke it will upset the idle, causes low speed running issues.
90 BX Tzd turbo 294k SORN undergoing major surgery
90 BX Tzd turbo estate 46k awaiting surgery
65 Peugeot Boxer Van the new workhorse
52 Toyota Rav4 180k Bulletproof Jap reliability
90 BX Tzd turbo estate 46k awaiting surgery
65 Peugeot Boxer Van the new workhorse
52 Toyota Rav4 180k Bulletproof Jap reliability
Re: What does this pipe do?
OK, thanks, well the botch seemed to do the trick and it idled well with it connected up.