GolfGTIforum.co.uk
Model specific boards => Golf mk4 => Golf mk4 how to guides + info => Topic started by: richw911 on 15 September 2011, 21:23
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If your AGU has developed a missfire (usually on on cylinder 3) the ignition module is a very likely culprit.
The early 1.8T's don't have a management light and this fault doesn't usually throw a fault code. The coilpacks on an AGU are rock solid because they don't have amps built into each coil like the newer 1.8t's (AUM, AUQ).
For the AGU this is controlled by one ignition module.
As a first step :
Make sure the coil packs, the wiring to them and the spark plugs are all ok (Swap the coilpacks and spark plugs to see it the missfire moves to another cylinder)
If not it could well be the ignition amp AKA Ignition Control Module, this is located on the airbox at the rear.
(http://i163.photobucket.com/albums/t318/richw911/forum/ignamp.jpg)
Two screws and just unplug and replace.
Ignition Control Module, part numbers Bosch 0227100211 or 4D0905351.
Eurocarparts list these as "TCI MODULE" (Transistor Controlled Ignition) part no 415440120
You can get one from Euro car parts and use the forum discount :smiley:
http://www.eurocarparts.com/ignition-modules
£66.60 with forum discount :smiley:
The writer of this guide and GolfGTI.co.uk accept no responsibility of damage to your car when using this guide Use at your own risk.
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Rich, can you kindly delete this, as AGU's don't have problems :laugh:
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Rich, can you kindly delete this, as AGU's don't have problems :laugh:
That is very true :laugh: :grin:
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Rich, can you kindly delete this, as AGU's don't have problems :laugh:
That is so not true :laugh: :grin:
:lipsrsealed:
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Rich, can you kindly delete this, as AGU's don't have problems :laugh:
That is so not true :laugh: :grin:
:lipsrsealed:
Other than my waterpump name a fault ive had on my engine..... :laugh:
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Rich, can you kindly delete this, as AGU's don't have problems :laugh:
That is so not true :laugh: :grin:
:lipsrsealed:
Other than my waterpump name a fault ive had on my engine..... :laugh:
I was referring to others who do suffer problems :tongue:
Looked at one today where if you leave it idling it starts hunting / mis-firing almost yet no fault codes came up :huh:
Ignition amp or MAF?? It cut out several times after I looked at it :sad:
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Rich, can you kindly delete this, as AGU's don't have problems :laugh:
That is so not true :laugh: :grin:
:lipsrsealed:
Other than my waterpump name a fault ive had on my engine..... :laugh:
I was referring to others who do suffer problems :tongue:
Looked at one today where if you leave it idling it starts hunting / mis-firing almost yet no fault codes came up :huh:
Ignition amp or MAF?? It cut out several times after I looked at it :sad:
:laugh: TB clean first if it is a missfire id say amp :smiley:
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I know the forum member, he messaged me instead off you Rhyso :embarassed:
I suggest maf or a cylinder's down due to coil or amp as well :smug:
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Rich, can you kindly delete this, as AGU's don't have problems :laugh:
That is so not true :laugh: :grin:
:lipsrsealed:
Other than my waterpump name a fault ive had on my engine..... :laugh:
I was referring to others who do suffer problems :tongue:
Looked at one today where if you leave it idling it starts hunting / mis-firing almost yet no fault codes came up :huh:
Ignition amp or MAF?? It cut out several times after I looked at it :sad:
:laugh: TB clean first if it is a missfire id say amp :smiley:
Its johnomk4s which has a weird TB fitted lol
http://www.golfgtiforum.co.uk/index.php?topic=205773.0
I know the forum member, he messaged me instead off you Rhyso :embarassed:
I suggest maf or a cylinder's down due to coil or amp as well :smug:
Amp was my idea too as its been relocated to near the suspension turret due to a cone filter being installed
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Rich, can you kindly delete this, as AGU's don't have problems :laugh:
That is so not true :laugh: :grin:
:lipsrsealed:
Other than my waterpump name a fault ive had on my engine..... :laugh:
I was referring to others who do suffer problems :tongue:
Looked at one today where if you leave it idling it starts hunting / mis-firing almost yet no fault codes came up :huh:
Ignition amp or MAF?? It cut out several times after I looked at it :sad:
:laugh: TB clean first if it is a missfire id say amp :smiley:
Its johnomk4s which has a weird TB fitted lol
http://www.golfgtiforum.co.uk/index.php?topic=205773.0
I know the forum member, he messaged me instead off you Rhyso :embarassed:
I suggest maf or a cylinder's down due to coil or amp as well :smug:
Amp was my idea too as its been relocated to near the suspension turret due to a cone filter being installed
Ah amp if its been moved probably got too hot :smiley:
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Ah amp if its been moved probably got too hot :smiley:
So better heat shielding required or a new one?
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Ah amp if its been moved probably got too hot :smiley:
So better heat shielding required or a new one?
Both id say its been fried so it would be worth finding a better place / heat shield.
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Ah amp if its been moved probably got too hot :smiley:
So better heat shielding required or a new one?
Problem being it was like it before i fitted the cone filter..... :sick:
I was reading another thead on here wich sounds very similar to my prob, but dont know how to link it, it's called "MK4 1.8gti engine stops after 3 miles" where as mine manages alot more, his turned out to be a intermitant fault with crank sensor :huh:
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I will move it tomoz in work see if it makes a difference. :wink:
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Just rang TPS up and gave them the part number of the part in the pic on page1. Apparently they can no longer supply this part
Any idea's where i can get a genuine new Ignition Amp from? Are the aftermarket ones from euro car parts any good?
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Just rang TPS up and gave them the part number of the part in the pic on page1. Apparently they can no longer supply this part
Any idea's where i can get a genuine new Ignition Amp from? Are the aftermarket ones from euro car parts any good?
That pic may not be an agu amp! I will change the pic :wink:
Wez has a ECP after market one and it has been spot on :smiley:
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tried me car last night and it wasnt misfiring. So im thinking that the amp was getting abit to hot on the way home on sunday, and once the engine was turned off and left for an hour it will give the misfire as still to hot. but left for a day will be fine after cooling down?
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I've managed to trace my fault to a relay by the pedals, numbered 100
(http://i1124.photobucket.com/albums/l567/johnomk4/pics22911017.jpg)
It keeps cliking on and off when the fault occours, anybody tell me what it's for, as ive changed it and it's still the same :huh:
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It keeps cliking on and off when the fault occours, anybody tell me what it's for, as ive changed it and it's still the same :huh:
Its the ignition relay
http://www.golfgtiforum.co.uk/index.php?topic=87372.0
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Thank's Rhyso. :afro:
So looks like im going to have to delve into the wiring somewhere. :sick: