GolfGTIforum.co.uk
Model specific boards => Golf mk3 => Topic started by: tim145tim on 25 February 2008, 16:36
-
The stalling / cutting out/ lack of power problem with my gti is getting worse, so booked into a specialist on friday.
I just went out to see if I could watch it stall whilst the bonnet was open,,,
I noticed when I revved the car whislt the engine was running in nuetral, that as the rev needle came back down.... it was quite slow to do so and it kind of paused as it was half way down for a split second....
Say I revved it to 4ooo rpm.... on its way back down to 1ooo it would ever so slighty look as if it was in 2 stages .... pausing slightly at 2,500...
any one heard of this?
-
mine did similar, i changed the coolant temp sensor about a tenner gsf. have you cleaned the throttle body and tried the ecu and fuel pump relays.
-
ive cleaned the throttle body well which seemed to make it run better for a few days but it now seems to be worse each week.
Ive made sure that the relays are pushed in... havent changed them though... or any sensors
what fixed yourS?
-
Change the relays, also change your vac lines to silicone ones, 3mm id, also remove and clean your isv. I think doing these 3 things will if not solve you problems make the car run a hell of alot better.
-
whats the best way to get to the relay box?
ive pulled off the clastic cover but can only reach/ see the fueses and the bottom layer of relays
-
how many metres of 3mm vac hose would be needed to change all of them..??......
-
1m should be enough
-
whats the best way to get to the relay box?
ive pulled off the clastic cover but can only reach/ see the fueses and the bottom layer of relays
Gotta get right down on your knees and look up into the fuse box with a torch, it aint difficult though, take literally 2 minutes. :smiley:
-
1m should be enough
Yeh as said by Saul 1 metre should be enough, got mine from Zenna racing on ebay, got the blue one coz it looked :cool:
-
ive cleaned the throttle body well which seemed to make it run better for a few days but it now seems to be worse each week.
Ive made sure that the relays are pushed in... havent changed them though... or any sensors
what fixed yourS?
changing the coolant sensor fixed mine
-
Coolant temp sensors are not available from GSF as the 16v OBDII needs a 2 pin white plug, £26 from VW. This being broken would only effect the car at certain temp ranges i.e. when warmed up. Even then it would only cause the car to overfuel and run rich rather than cause any cutting out.
Pushing the relays in won't make any difference unless they're changed first. Change your fuel pump relay and it will stop cutting out. Simple. If you get a flashing oil light and the car sometimes fails to start then change the ECU relay too.
To take out the fusebox undo the white clips either side of it then lift the lot up and off the hook brackets. You'll need to remove the lower dash trim under the steering wheel to get it off properly.
1M of 3mm silicone vac hose is enough to replace all three hoses on the ABF providing you take a shortcut when refitting the one from the inlet manifold to the manifold pressure sensor in the ECU. The ABF engine tends to have a lot of over-run on it anyway but a break or hidden hole in a vac hose will make this a lot worse. Change them all.
-
so you rekon just go buy a number 167 relay and my car wont have the problem?
-
yep, If i'm wrong i'll give you a fiver
-
Haha Damn it! you'll love this pete....
UPDATE....
Just went to Euro car parts as its 2 streets away and bought a no 167 fuel pump relay for £10...
Fitted it, took about 5mins, and the car seems to be not stalling or jumping anymore!
took it on a 20 min test drive mixture between dual carriageways/ roundabouts... and it didnt jump or cutout once. I made a point of idling aswell by waiting for large gaps in traffic and idling in neutral for a minute or two aswell.
So far so good- Im still not 100% certain its fixed the problem for good, as it was always worse from cold and first thing in the morning,
Neverless the test drive was a route which usually sees a few power losses!
SO
fingers crossed...
I'll update you soon
Thanks Pete!
-
Told you so...
-
I drove the car last night, it jumped once and cut out once in the first minute of driving...
after that it was perfect...
and in a 45min journey round town/ and motorway this morning from cold it was perfect even in rush hour traffic...
(a journey thats seen 6 cutouts on monday)
SO
Do you think that the minor hiccup lastnight was just because the car was taking a few journeys to get use to the new part,
OR is it much more likely that the cars cutting out is being caused by more than one fault, and by changing the relay, Ive fixed ONE of A COUPLE of problems?
-
Did you clean out the throttle body and the ISV in the end? Definately do them and the vac hoses and you should see an improvement
-
Throttle body i cleaned, havent done the ISV yet, nor the small vac pipes.
I will do these tomorrow...
I havent yet cancelled the cars appointment with the vw specialists which is friday...
I dont know whether too... hmmmmm
?
-
If you've got the money then there's no problem. If it's going into a VW specialist then first thing they'll do is hook it upto the diagnostics. They might find a crank sensor with an intermittant fault you never know
-
yeh good point...
I'll keep the appointment!
-
VW specialists have the car today...
they say their diagnostics keep coming up with the same fault of the Coolant Temp Sensor thats failing.
This could actually sort the problem, as since the relay was changed, its only now cutting out rearely and only in the first 5mins of driving when cold... (and not at random junctions throughout the journey anymore)...
They said 26 quid from vw but wont be in till Tues...
So I guess I wont know whether its sorted it till then...
-
Hi,
I also bit the bullet and sent her in to a 'VW specialist'.
In short they changed out MAF sensor (@ ~ £75) and the water Temp sensor @ £23, which I thought was V steep (from GSF I think). (He reckoned it was reading 20deg C out, but I'm not sure I believe that!!)
Also cleaned out (once again) the throttle housing/assy.
Good news is its running very sweet.
Normally I'd have done them one at a time, so unfortunatley I still don't know which bit was really the solution.
FYI. He reckons that MAF sensor is a common fault and 'recommends' that any VW over 6years old to have a new one fitted anyway (which sounds like a good ploy for him!)
Thanks for info and good luck.
LM
-
Rare for the ECU coolant temp sensor to be so dead that it actually logs the fault. Must be running like a right pig with that broken! The fuel consumption must be a nightmare too! Should run like a dream when that's fixed :)
-
Yeh mpg has been pretty shocking lately to be honest... not getting over 25 on a 20 min motorway drive that use to see 36+ instantly...
-
i have the same thing happening with my 16v it revs up and down from cold then fine once warmed up.
wheres the location of the temp switch/sensor everyones talking about? :laugh:
havent got a haynes :cry:
-
Promised you all an update!
:smiley:The car is running spot on! £26 for the sensor and £20 to fit by the specialists...
car now running without any jumps/ stalls/ splutters!
V happy! :smiley:
-
I intermittently get this fault too, would it be a gd idea to do a sticky for it? Perhaps with an idea as to where everything can be found and how to access it?
Much appreciated
Andy
-
Well I think I jinxed myself by posting in this topic :sad:
I was coming into work this morning and pootling along at 'some' miles an hour when for a split second the revs dropped and I had no power.
Granted it came straight bk again but it's a little worrying!