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Model specific boards => Golf mk3 => Topic started by: admc6 on 23 May 2008, 21:33

Title: Ye Olde Cutting Out problem...(or maybe not now)
Post by: admc6 on 23 May 2008, 21:33
As you can see from the title i have the very common cutting out issue.

I have a P reg Golf GTI 8v Anniversary.
The car starts great and idles very well, but the engine will cut out on me. This seems to happen when the oil temp reaches 60. It always happens a t the point. The car will start up straight after but will cut out again about 72 on the oil temp. Again it will start straight away, well thats untill it cuts out, when it wont start untill its had a rest of 5mins. I have had the car on vag com but it doesnt show up any faults

I have been trying to solve this problem through post left on numerous golf forums.
So far i have changed...
-ECU relay
-Fuel Pump relay
-Hall sender
-Distributor Cap
-Rotar arm
-Engine Speed sensor
-Engine coolant temperature sensor
-The ECU has been checked for faults
-Cleaned Throttle body
-HT leads
-Checked vacuum pipes for holes

Has anyone got any ideas what might be causing this cutting out? Its doing my head in  :angry:
Title: Re: Ye Olde Cutting Out problem...
Post by: DazVR6 on 23 May 2008, 21:48
Was the engine speed senser a genuine one from the stealers..? coz i have heard that other aftermarket ones are not up to the job.

Same with the relays, are they genuine..?
Title: Re: Ye Olde Cutting Out problem...
Post by: admc6 on 23 May 2008, 21:53
They are all genuine parts
Title: Re: Ye Olde Cutting Out problem...
Post by: admc6 on 24 May 2008, 10:24
Dont suppose anyone lives around the wirral area who could help me with this problem?
Title: Re: Ye Olde Cutting Out problem...
Post by: admc6 on 24 May 2008, 10:52
Hate to say it, but i think its going to have to go to VW  :undecided:
Title: Re: Ye Olde Cutting Out problem...
Post by: admc6 on 24 May 2008, 12:12
I know i know me again...

Just re-checked all the hose connections and opened the throttle body butterfly to give the throttle body a good spray with carb cleaner.
Started her up - was a bit rough but put this down to the carb cleaner so pushed the accelerator to fire properly. After that was idleing and reving well, so left her to idle.

Suprise suprise the car cut out when the oil temp got to 60. This time though the car wouldnt start straight away, so decided to leave it a couple of mins. Still no luck though.

I cant help but think that it has something to do with that temp.
If it was an air leak i wouldnt have thought that it would happen at exactly the same point every time.
I also dont think it would be a sensor either as you dont get any fault codes when its run on diagnostic equipment.

Does anyone know what else might cause it?
Title: Re: Ye Olde Cutting Out problem...
Post by: DazVR6 on 24 May 2008, 13:43
Sounds temp related to me aswell if its always cutting out exactly at 60c, isn't there 2 temp sensers, correct me if im wrong, one for the ecu and one for the actual guage, are you sure you replaced the right one..?

Have you actually removed your breather hoses and checked em for cracks and splits..?
Title: Re: Ye Olde Cutting Out problem...
Post by: admc6 on 24 May 2008, 13:58
I changed the engine coolant temperature sensor (ECT), the one on the front of the engine block.

Where is the other one located?

I have had most of them off and cant find a fault. Checked the others, but the all seem ok.
It just seems to funny its always at 60 on the oil temp.

It wouldnt be the coil would it?
Title: Re: Ye Olde Cutting Out problem...
Post by: admc6 on 24 May 2008, 14:15
Just been researching my problem again. Found out the EGR causes this sort of problem. Where abouts is it?
Title: Re: Ye Olde Cutting Out problem...
Post by: DazVR6 on 24 May 2008, 14:19
Usually with the coil its more of an intermitant/random cutting out as the coil deteriorates until finally it will just fail to start. Not sure where the t other temp senser is but im sure theres 2.

Have you tried cleaning the maf as mentioned in the other post , did this and it got rid of a fault code on my vr so worth a try.
Title: Re: Ye Olde Cutting Out problem...
Post by: DazVR6 on 24 May 2008, 14:26
Just been researching my problem again. Found out the EGR causes this sort of problem. Where abouts is it?

Think by egr valve you mean pcv valve..? thats located on top of your engine head in a square black box.
Title: Re: Ye Olde Cutting Out problem...
Post by: admc6 on 24 May 2008, 14:29
Yeah i have had a clean of the MAF. I even took the two sensors out to have a look at them. Looked clean to me.

Just thinking about the EGR, I had put some injector cleaner and some (cant remember the name now) suff through the fuel. Unless this has blocked something. But then again, its just at that temperature, and have been to london and back since then.

The first sign of it stopping was very very erratic revs going down the motorway doing 85. It is the strangest thing i have seen in it. Not sure what was causing that, but it is definately related
Title: Re: Ye Olde Cutting Out problem...
Post by: admc6 on 24 May 2008, 14:30
I thought it was that. Just the cover just come off when you undo the two screws?
Title: Re: Ye Olde Cutting Out problem...
Post by: DazVR6 on 24 May 2008, 14:54
Should do, remove it and squirt some carb cleaner through it. Reaplced your fuel filter recently..?
Title: Re: Ye Olde Cutting Out problem...
Post by: admc6 on 24 May 2008, 14:59
Nope. That thought had crossed my mind, but i would think that its would always struggle, not just stall like you have switched it off.

I will give that bit a clean tho
Title: Re: Ye Olde Cutting Out problem... (or maybe not now)
Post by: admc6 on 25 May 2008, 15:11
Good news. I have found an issue with the car.

Yesterday i cleaned the pcv? pipes that run from the bottom of then engine block and up back into the air intake. They looked a bit gungy. I had no change, but did run better.

Then today i have been thinking it through and decided to run my vag com on it. If you looked at all the measuring blocks, everything ran within the right specifications.
I then checked to see if there was any problems with the ignition system. There seemed to be power to and from the coil and was running fine again.
Car then cut out, as per normal, so decided to look and see if i was getting a spark. Found out i wasnt. I then re-checked the power into the coil and it was still there.
With having new leads, distributor cap and rotor arm i think there is a problem within the coil.

I am going to give it a go as soon as i can get one. Will let you know if it works
Title: Re: Ye Olde Cutting Out problem...(or maybe not now)
Post by: DazVR6 on 25 May 2008, 16:32
If you can get a second hand one to try before you buy a new one then give it a shot, keep us informed. :smiley:
Title: Re: Ye Olde Cutting Out problem...(or maybe not now)
Post by: admc6 on 25 May 2008, 16:46
I have a friend who works for a garage and he can order it in, then i can test it and itf its not that i can just send it back  :laugh: