Sm inlet high idle

[The Beardo]

just spent the last few hours fitting the sm/Tessa manifold and the car idles at 3k rpm, I’ve pulled it all apart to check o rings and all seem fine, I’m I forgetting to do something?

 

[Inequality Street]

@JP83

 

[Raceface_13]

I heard someone have this before with one out the new batch. He said he disconnected the battery. Reconnect, then started (still idling high) took it for a drive and after afew miles it settled down and never returned, so MAYBE it’s something withing the ecu sorting itself out. Would be good to know if thats the case as i have one to fit soon once iv got a AC delete

 

[Raceface_13]

Or maybe its all utter b****cks what i read and you have an air leak. You tryed spraying carb cleaner about to see if theres any leaks?

 

[JP83]

High idle is usually an air leak isn't it? I'd check all the connections for the acoustic valve, etc.

 

[The Beardo]

High idle is usually an air leak isn't it? I'd check all the connections for the acoustic valve, etc.

Acoustic valve, I removed that when I had the standard inlet on. I’ll go carb cleaner route and try that

 

[JP83]

Acoustic valve, I removed that when I had the standard inlet on. I’ll go carb cleaner route and try that

I assume you have bunged the hole on the inlet?

 

[bloke]

It's an airleak.

 

[Inequality Street]

There isn’t blue roll inside the inlet is there?

 

[Raceface_13]

Out of interest when the high idle issue is sorted, how does it run un mapped? Dunno wether to just bash mine on and run it un mapped for a month or 2. Some of the guys on the tessa fb page seem to just put them on and run unmapped :nomouth:

 

[JP83]

There isn’t blue roll inside the inlet is there?

That causes a misfire m9

 

[scotiamr2t]

@Raceface_13 I would not advise running it without being mapped to suit. The fueling will be all over the place, you could drive it gently an keep the revs sensible though as the lambda will allow that, it wont be able to adjust fueling for WOT though that is for sure

 

[The Beardo]

Ok so the saga continues, I have checked and double check all the connectors for pipes and the pipes them selves, I’ve checked the o rings on both sides of the inlet but have been chatting to people that have it fitted and have had different answers regarding the lower manifold gasket.

Some people say you don’t need it because of the O rings but some say you do,, which is right?

 

[bloke]

checked the fitting for the servo? sounds like a bit of a botched job after i had a phone call today :wink:

 

[NorthloopCup]

Ok so the saga continues, I have checked and double check all the connectors for pipes and the pipes them selves, I’ve checked the o rings on both sides of the inlet but have been chatting to people that have it fitted and have had different answers regarding the lower manifold gasket.

Some people say you don’t need it because of the O rings but some say you do,, which is right?

If the manifold has o rings on the flange face you don't need a gasket. The o rings create the seal.

Spray some chain lube around the potential leak areas. If the idle drops, then picks up, you've found the area of the leak.

 

[The Beardo]

checked the fitting for the servo? sounds like a bit of a botched job after i had a phone call today :wink:

I’ve checked all the fittings at least twice! How do you mean botched job?