BE5 Legacy Rough Idle

[jaster72]

Hi there,
I have a BE5 2ltr twin turbo which is currently idling quite badly once it has warmed up. It is somewhat pulsing and isn't able to settle, when the revs do drop it is coming very close to cutting out. I was hoping someone would know what could be causing this and how possible it would be to fix. I will look at adding a video when I get a chance to help explain what is going on.
Thanks.

[Yokosilver]

Sounds similar to what I am dealing with. I think it is the leak in my turbo vac line. My idle in park is anywhere from 1500 to 500 RPM. Might be a place to start at least.

[jaster72]

Here is a video of it idling.
http://www.youtube.com/watch?v=7Xmz76L-QU0&feature=youtu.be

Sounds similar to what I am dealing with. I think it is the leak in my turbo vac line. My idle in park is anywhere from 1500 to 500 RPM. Might be a place to start at least.
Does your idle badly when you first turn it on or just after it has warmed up, also is there an easy way to test for leaks or will it be a case of having to replace them and see if it helps.
Thanks.

[Cervantes]

That could be the idle control or MAF. Try swapping out the MAF and resetting the ECU.

[Yokosilver]

When I was looking at mine, I forgot to plug the MAF back in (I'm dumb) and it was similar to that. I am not sure what the idle control would do.