GolfGTIforum.co.uk

Model specific boards => Golf mk2 => Topic started by: Darkc0re on 27 May 2007, 20:06

Title: Cutting out under load
Post by: Darkc0re on 27 May 2007, 20:06

Hi, i have a mk1 caddy with a mk2 golf 1.8gti digifant engine fitted. It has been running ok for a while but seemed to lack torque and was rather gutless and fuel consumption was bad so i decided to check the timing as per the procedure in the tuneup topic in the maintence section it was way out so i changed it, again as per the procedure in the tuneup topic ever since i got the timing right, it cuts out when i give it a bit of stick? as soon as i put it under some load(higher revs than normal driving) it just cuts out completely, if i wait a few minutes it will restart and if i drive it normally(under 3k rpm) it wont cut out on me but as soon as i want to go above 3-4k rpm it just cuts out on me so basically everytime i accelerate heavily in a gear and get the rpm up high it cuts the engine off completely and wont restart untill i give it a few moments. Any idea what this could be?

Thanks

Title: Re: Cutting out under load
Post by: fused on 27 May 2007, 22:12

sounds like over fueling? does it cut out if you are staionary? Disconect the wiring to the AFM (big lump next to the air box) and rev it again. I think

Title: Re: Cutting out under load
Post by: Darkc0re on 27 May 2007, 23:26

nope doesnt cut out when stationery, Only under heavy acceleration so im guessing its the amount of throttle opening thats doing it? i recently changed the MAF as i thought it was part of my idle problem, read that it may be related somewhere. Do you think the second hand one i have fitted is faulty, would this cause these problems, im going to change it back tomorrow as the problem does only seem to have come about since i changed it.

Title: Re: Cutting out under load
Post by: Mew on 28 May 2007, 00:04

Could it be something as simple as dead spark plugs!?

Title: Re: Cutting out under load
Post by: Darkc0re on 28 May 2007, 08:50

sorry forgot to mention ive changed the plugs, leads and rotor arm

Title: Re: Cutting out under load
Post by: Darkc0re on 28 May 2007, 10:56

sorted now, refitted the old MAF and all is good  :smiley:

Title: Re: Cutting out under load
Post by: Darkc0re on 28 May 2007, 12:23

ignore that, its still broke, Just cut out on me and wont restart, what the hell could it be!?!

Title: Re: Cutting out under load
Post by: Mew on 28 May 2007, 12:27

So what happens after it cuts out? The engine turns over but won't fire up?

Title: Re: Cutting out under load
Post by: Darkc0re on 28 May 2007, 12:34

yeah, it turns over and just doesnt fire at all, i have spark from the coil at the king lead, but last time it happened i took the plugs out, i got no spark at the plug, only a very faint one after loads of turning over and they are very dry so im guessing its not fueling either? i have changed plugs, leads and rotor arm since then. Its weird though as i went probably 5 miles with it fine, pulled fine in all the gears unlike before, all of a sudden completely cuts out, just like all the power has been cut to it but wipers and lights continue to work?

Title: Re: Cutting out under load
Post by: Darkc0re on 28 May 2007, 13:17

oh and the idle is also very erratic? i dont know if the 2 are connected

Title: Re: Cutting out under load
Post by: Mew on 28 May 2007, 13:58

If you disconnect the coil to dizzy lead at the dizzy end and place it in the lift eye of the engine, does it just spark once when you turn the engine over or does it spark repeatedly?

Title: Re: Cutting out under load
Post by: Darkc0re on 28 May 2007, 14:18

it just sparks once

Title: Re: Cutting out under load
Post by: Darkc0re on 28 May 2007, 14:21

do you think the coil is at fault? i found a spade connection on the back of the distributer that has no wire going to it? should this be connected to something?

Title: Re: Cutting out under load
Post by: Mew on 28 May 2007, 14:22

If it just sparks once then that sounds like the hall sender. Exactly what happened to me when my hall sender went!

Title: Re: Cutting out under load
Post by: Mew on 28 May 2007, 14:27

Well, i say when it went.......... looking back now it may have just been the connection. Give it a jiggle on the dizzy to see if that starts it, or even pull the rubber boot up that goes around the 3 wires then have a go.

Title: Re: Cutting out under load
Post by: Darkc0re on 28 May 2007, 14:28

have a working hall sender on a spare dizzy on a spare engine, going to try that now.

Title: Re: Cutting out under load
Post by: mattneck(Beavis) on 28 May 2007, 14:30

Quote from: Mew on 28 May 2007, 14:22

If it just sparks once then that sounds like the hall sender. Exactly what happened to me when my hall sender went!

Happened on ym amtes corsa, exact same symptoms, to the finest detail..

New dizzy was the key in the end, was an easy swap from a scrap  :smiley:

Title: Re: Cutting out under load
Post by: Darkc0re on 28 May 2007, 16:56

just changed the hall sender over from another dizzy and still having the same problems :( could it be the coil?

Title: Re: Cutting out under load
Post by: Darkc0re on 28 May 2007, 20:32

sorted now, schoolboy error, put the dizzy back in 180 degrees out  :embarassed: So it was definately the hall sender as it seems fixed now, just took it for a long drive and its run fine, the old hall sender looked very scored and manky

Title: Re: Cutting out under load
Post by: mattneck(Beavis) on 28 May 2007, 20:59

Quote from: Darkc0re on 28 May 2007, 20:32

sorted now, schoolboy error, put the dizzy back in 180 degrees out  :embarassed: So it was definately the hall sender as it seems fixed now, just took it for a long drive and its run fine, the old hall sender looked very scored and manky

apart from the 180deg, as i say same story we had  :smiley: