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Author very rough idle on x14xe
johnscorsaXE
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Registered: 14th Sep 04
Location: Walsall
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16th Feb 06 at 16:28   View User's Profile U2U Member Reply With Quote
ive fitted an aftermarket inlet manifold, from a user on MIG. ive fitted everythin including all new gaskets etc, but now the car isnt drivable.
it idles at 1.5k revs, goes up and down, and also stalls.
when i put my foot on the gas, its very lumpy, and revs awfully.

im unsure of whats wrong with it. can anyone offer any help?

Im thinking it may be the ICV, but dont know what to look for in the engine bay to find it.
also, smoke is coming from the oil breather hose where i put a small pipercross filter on. any idea why?

any help greatly appreciated.

John
Corsa E-Tec
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Registered: 4th Feb 04
Location: Stevenage Drives: Leon Cupra
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16th Feb 06 at 16:31   View User's Profile U2U Member Reply With Quote
not sure on the smoke part.

cleaning the ICV will need doing but not 100% on it's location

did you disconnect the battery before changing the maniflold?

if not, disconect the baterry for 5 mins then start car and leave to idle for 5 mins.

[Edited on 16-02-2006 by Corsa E-Tec]
Dean_W
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Registered: 13th Dec 05
Location: Downham Market, Norfolk
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16th Feb 06 at 16:40   View User's Profile U2U Member Reply With Quote
John,

Any pics of said manifold, and the connections?
johnscorsaXE
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Location: Walsall
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16th Feb 06 at 16:43   View User's Profile U2U Member Reply With Quote
yeah just a sec mate il go and get some pics
Dave A
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Registered: 10th Dec 03
Location: County Durham
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16th Feb 06 at 16:50   View User's Profile U2U Member Reply With Quote
try cleaning icv, check all the vaccum hoses, paticularly the map sensor.

also check for an air leak around the joints and where the bolts go through the box as these seem a poor design on these inlets
johnscorsaXE
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Registered: 14th Sep 04
Location: Walsall
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16th Feb 06 at 16:51   View User's Profile U2U Member Reply With Quote





Corsa E-Tec
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Registered: 4th Feb 04
Location: Stevenage Drives: Leon Cupra
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16th Feb 06 at 16:55   View User's Profile U2U Member Reply With Quote
the loose hose needs to be connected to the FPR hose. that goes into the inlet manifold.
broster
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Registered: 6th Dec 02
Location: Drives: E39
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16th Feb 06 at 16:57   View Garage View User's Profile U2U Member Reply With Quote
his FPR is connected...
johnscorsaXE
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16th Feb 06 at 16:59   View User's Profile U2U Member Reply With Quote
connected to the new inlet are the FPR, MAP and brake servo
Dean_W
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Registered: 13th Dec 05
Location: Downham Market, Norfolk
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16th Feb 06 at 17:01   View User's Profile U2U Member Reply With Quote
On mine, the small rocker cover hose is attached to the new manifold, with T pieces in to attach all the other vacum hoses to e.g. yellow, black, FPR etc.

Must have missed one?
Dean_W
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16th Feb 06 at 17:02   View User's Profile U2U Member Reply With Quote
John,

I'm on my way home now, i'll take some close up pics of the hoses on my mantzel and post when i get in.
Dave A
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16th Feb 06 at 17:02   View User's Profile U2U Member Reply With Quote
get the other two solenoids fitted
johnscorsaXE
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Location: Walsall
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16th Feb 06 at 17:11   View User's Profile U2U Member Reply With Quote
good man.
unsure of where to fit those otehr pipes though!
Dave A
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16th Feb 06 at 17:19   View User's Profile U2U Member Reply With Quote
on both solenoids one pipe goes to vaccum from the inlet. use some t-pieces.

the other goes to:

Charcoal canister solenoid: long pipe coming from the inner drivers wing, hard black plastic pipe.

secondary air pump solenoid: pipe that comes from the valve on top of the exhaust manifold
Rob B
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Registered: 8th Jan 04
Location: Area Motorsport Drives: Race EP3
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16th Feb 06 at 17:39   View User's Profile U2U Member Reply With Quote
sounds like the map sensor to me
broster
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16th Feb 06 at 17:41   View Garage View User's Profile U2U Member Reply With Quote
below the brake servo line you have a vacume line that not got anything connected to it..... get a vacume line on that, will help the idle a bit.... unmetered air will get thru there raising the idle a bit
johnscorsaXE
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16th Feb 06 at 17:46   View User's Profile U2U Member Reply With Quote
yeah im going to get a t piece and get that into a vacuum line
Dean_W
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Location: Downham Market, Norfolk
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16th Feb 06 at 18:37   View User's Profile U2U Member Reply With Quote
John,

A couple of pics so you can see the vacum pipes: -







From the rocker cover to the one of the take offs from the brake servo hose. T pieces that the FPR and the black plastic hose that comes from the right hand side of the engine bay goes into.

The yellow plastic hose goes onto the other take-off on the brake servo pipe.

MAP sensor straight onto the new manifold.

Brake servo on to the new manifold.

More pics in garage if you need them


[Edited on 16-02-2006 by Dean_W]
Corsa E-Tec
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Registered: 4th Feb 04
Location: Stevenage Drives: Leon Cupra
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17th Feb 06 at 00:05   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by broster
below the brake servo line you have a vacume line that not got anything connected to it..... get a vacume line on that, will help the idle a bit.... unmetered air will get thru there raising the idle a bit


thats what i meant

T pieced on the FPR hose
broster
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Registered: 6th Dec 02
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17th Feb 06 at 08:39   View Garage View User's Profile U2U Member Reply With Quote
no i mean on his inlet there is a fitting thats no got a hose on it...
Dave A
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17th Feb 06 at 10:11   View User's Profile U2U Member Reply With Quote
Corsa E-Tec: i think that pic is from one i made earlier! where did you find it?
johnscorsaXE
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17th Feb 06 at 10:40   View User's Profile U2U Member Reply With Quote
wheres the fitting on the inlet with no hose??
broster
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Registered: 6th Dec 02
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17th Feb 06 at 11:09   View Garage View User's Profile U2U Member Reply With Quote


am i wrong
Corsa E-Tec
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17th Feb 06 at 12:23   View User's Profile U2U Member Reply With Quote
dunno what that is mark. but i thought it was meant to be T peiced to the FPR vacum hose.

808: it was in your garage, sorry mate, didn't think you would mind.
johnscorsaXE
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Location: Walsall
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17th Feb 06 at 14:33   View User's Profile U2U Member Reply With Quote
that thing that has been circled is just a thin bolt that is on the lower inlet. not a connection point iirc

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