whats low?

it is now fitted just past the collector, it has started to idle low when ticking over and feels like its goin to stall.
took the throttle body off yesterday as the gasket was damaged and sucking in air. sorted that out but now i have the problem with it ticking over.
have also swopped ecu's as i think the one i had fitted was damaged when my wiring loom melted.

having the lambda in 1 cyliynder primary is a bad idea. get a lambda boss put in around 3-6" from the collector.

I have had several cars in with lambda sensors in an individual primary and never had a problem.

Would only cause a problem if there was a problem on that cylinder which should still show up if the lambda sensor was in or after the collector! Being in the primary would just make it appear worse to the ecu!

quote:

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Originally posted by Richardhhha
if its on one of the single brances then you will get the problem.. had a 4-1 on mine and it would not pass an imisions test. put the old manifold back on and the problems go... always need to get a manifold that has the lambda/hego sensor in a collection point where all the gasses meat not just from one cylinder.

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if its on one of the single brances then you will get the problem.. had a 4-1 on mine and it would not pass an imisions test. put the old manifold back on and the problems go... always need to get a manifold that has the lambda/hego sensor in a collection point where all the gasses meat not just from one cylinder.

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Originally posted by Dave A
is the lambda sensor fitted after the collector (where the 4 branches join) or in 1 of the single branches?

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as i read it one of the single branches!

is the lambda sensor fitted after the collector (where the 4 branches join) or in 1 of the single branches?

my last lamber had 3 wires. its not a ntk one its a bosch (my mistake)
wont the emmisions be out as ive got a de-cat?
i have got a small air leak somewhere that im goin to try and find 2morrow

wires shouldn't matter 3 wire is just heated yours isn't!

Don't know what to suggest, really needs the emissions checking to see how it is actually running, then scope the lambda to see what the sensor is actually reading.

I must admit i'm not a fan of ngk lambdas and have had problems with them in the past so don't dismiss it to hastily!

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Originally posted by ainsley_brader
heavy on juice is because its running rich.

Did you fit the new ambda to cure this problem or previously?

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heavy on juice is because its running rich.

Did you fit the new ambda to cure this problem or previously?

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Originally posted by ainsley_brader
nope shouldnt cause it! Any air leaks between manifold and head if its had a new manifold as that would trick the lambda!

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nope shouldnt cause it! Any air leaks between manifold and head if its had a new manifold as that would trick the lambda!

have just fitted a new ntk lamber sensor, its fitted in one of the outlets on my manifold at the moment (have got a 4 into 1 exhaust manifold) could this be the reason?

I agree, sounds like a lambda problem

[Edited on 08-02-2008 by Kenzie]

tbh that all suggests its running rich!

So as i said first thing would be to get the emissions tested to see if its running rich or lean assuming its running rich which the above implies, then its likely its a faulty lambda sensor which thinks it is running lean when it isnt and telling the vehicle to richen the mixture up!

quote:

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Originally posted by ainsley_brader
first you need to know if it is to lean or if the car is lying.

If it is too lean you need to find out why its too lean!

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first you need to know if it is to lean or if the car is lying.

If it is too lean you need to find out why its too lean!

anyone?

eml came on today on my gsi and code 44 was stored exhaust gases to lean. how do i sort this?

[Edited on 08-02-2008 by gsirick]