Hi Guys,
MK4 Golf 1.8T AGU engine Code
I have a issue and wanted to ask your opinions!
The other day I went out for a drive to Halfords to get a few bits to fix my door handle (was loose!) and the car to Halfords was running absolutely fine, didn't miss a beat accelerated and boosted exactly how it should be.
When I left Halfords and went up a ramp to a motorway and boosted the car all of a sudden shuddered and lost a lot of power.
Nursing the car which now sounds like a Subaru home I was barely able to get past 30 mph and going up a hill I was doing 20mph at 1mpg!
Checked the coil packs and cylinder 4 was the issue, As disconnecting the other 3 when engine was running made the engine shudder, Disconnect 4 and the car didn't change at all.
Put a new coilpack in and still the same outcome. moved coil packs around and again 4 was still the same.
Took the spark plug out of cylinder 4 and the tip was discoloured (almost white)
Today I have ordered 4 spark plugs (NGK ones) and 3 ignition coils.
If this doesn't work could anyone else shed light?
Do you think im on the right path to fixing this?
Ever since putting the spark plug from cylinder 4 to cylinder 3 the car isn't running as lumpy but still sounds like a Subaru!
Many thanks in advance
