Idle Fluctuation

[raymaan]

Hey Guys! 

 

Currently stuck with a bloody annoying situation. A couple of months ago my 1998 Subaru Impreza (V5 STi) decided to start having idle issues. On idle after being warm the revs start to fluctuate up and down, whilst i drive its fine but then when i come to a light its continuous. I decided to pull off the intake manifold and replace all the hoses and gaskets, in the process i also replaced the Idle Control Valve. The issue is still here and constantly happening, it feels like im not getting full power like i used to either. I thought it might be the MAF sensor but i did the MAF "test" by pulling it out while turned on, not sure if this was correct? Could anyone lead me in the right direction?

 

Much Appreciated,

Ray
 

[Guest]

I would replace the maf with a brand new genuine item. Pretty cheap off partsouq. Pretty common issue on the v5 6 stuff.

[raymaan]

2 hours ago, evowrx said:

I would replace the maf with a brand new genuine item. Pretty cheap off partsouq. Pretty common issue on the v5 6 stuff.

 

Just tried looking for the part but they have none available, is there a interchangeable MAF sensor that i could use? I know they have those colour coded sticker ones but mine doesn't have any sticker.

[Dairusire]

58 minutes ago, raymaan said:

 

Just tried looking for the part but they have none available, is there a interchangeable MAF sensor that i could use? I know they have those colour coded sticker ones but mine doesn't have any sticker.

 

Your one won't have any sticker nah. Version 5-6 I believe did away with that. 

 

That's the part number and it is available? So maybe you got the wrong one or something.

22794AA010 

[Guest]

Yea no sticker on those. They are an insert type and theres only a turbo and non turbo version. 

[Dairusire]

Before you go do that though, take off the idle control valve and make sure it isn't stuck or hard to move. Sometimes they get stuck and cause the hunting that you're speaking of.

 

EDIT:

 

Never mind about the ICV. Didn't realise you'd already replaced it.

[raymaan]

Cheers,  I actually did locate the wrong one! I probably need the whole housing as well, someone over tightened the bolts and cracked all the fastening tabs Zzz.

Looks like this is going to be an expensive trial fix.

[Guest]

6 minutes ago, raymaan said:

Cheers,  I actually did locate the wrong one! I probably need the whole housing as well, someone over tightened the bolts and cracked all the fastening tabs Zzz.

Looks like this is going to be an expensive trial fix.

 

The be/bh legy rev a b c also have the same tube so pickapart could sort the tube part out cheaply.