Author Topic: Problems when warm (Cont'd)  (Read 3889 times)

Offline alien.46.uk

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Re: Problems when warm (Cont'd)
« Reply #20 on: 20 August 2009, 14:49 »
It's in the water pipe feed and return valve just in front of the head.

Also found there is no Air intake temp sensor. There is a 2-wire plug with no where to go, can anyone confirm the cable colours for the intake sensor please?

Now to source a 2E air box and sensor (assumably a different shape to AGG?).

This is assuming this can cause the problem and removing the water temp cable puts it into set-up mode anyway where it'll use some default settings? Hence it running fine when disconnected?

Water Sensor:


Offline boneybradley

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Re: Problems when warm (Cont'd)
« Reply #21 on: 20 August 2009, 15:06 »
airboxes are all the same  :wink:  and if your engine runs fine when you mess with the temp sensor then that's your issue (try a new temp sensor as its possible youve got a dud?)

oh and the 2e dosen't have a maf (air mass meter) its a proper air flow meter without an air intake sensor..
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Offline alien.46.uk

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Re: Problems when warm (Cont'd)
« Reply #22 on: 20 August 2009, 15:22 »
airboxes are all the same  :wink:  and if your engine runs fine when you mess with the temp sensor then that's your issue (try a new temp sensor as its possible youve got a dud?)

oh and the 2e dosen't have a maf (air mass meter) its a proper air flow meter without an air intake sensor..

Well 3 new sensors down and my luck cannot be that bad.

All wiring to the water sensor is fine and untouched.

The 2E still uses air intake temp sensor though or not? If not why is the wiring, or what I think to be the wiring there?

It's coming out the same section of the loom as the air intake temp, it, I think has the same connector and once I get my hands on a wiring diagram should also prove to be the correct coloured wires.

I've done everything I can with the water temp sensor and am pretty sure this isn't the problem. It's not wiggling it which fixes it, it's taking it off, which puts the car into set-up. So it would then not use the air intake sensor and use a default setting? as the car is set-up whilst stationary, so the reading would prove higher anyway potentially making the CO set-up slightly out, so a default "average" setting would assumably be used for this ...?

This is only what I'm thinking, but being proven otherwise I am quite happy with :smiley:.


Offline boneybradley

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Re: Problems when warm (Cont'd)
« Reply #23 on: 20 August 2009, 15:27 »
I think a wire on the temp sensor is faulty (common fault on mk3's where the wiring becomes brittle with age and breaks down! it's usually the hall sensor that fails first but looking at the tape its possibly had a wiring issue before thats being disguised/bodged with blue tape?)

and the only way the ecu goes into learn mode is by disconnecting the battery for 15 minutes :wink:
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