Author Topic: 1.8 DIED WHILST DRIVING - WILL NOT RESTART - okay maybe it will  (Read 1864 times)

Offline Nobbyclarke123

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Good morning people, well its not such a good morning in my little world.

So friday i received my new coilovers and amp, fitted these and all was sweet. drove the car as normal for two days....
Then on sunday evening things started to go down hill, i was out for a drive when it suddenly died, all the lights on the dash work everything works barr the engine, it wouldn't start again and ended up being returned home via a breakdown truck.

My first thought was does it have spark? to which i have confirmed that it does indeed have spark, so then i moved onto fuel.

I removed the top, off the single point injection unit, and turned the key. Now heres the thing, when running normally you can see the fuel being injected onto the butterfly valve, this time however there was no fuel being injected. it was at this point i gave a shot of easy start into the unit and turned the key, it tried to run but once it had burnt the easy start off it died again. this pointed me to no fuel.

I place 12V across the fuel pump relay and hear a click so i know the pump is getting powered, i then removed the fuel flow & return pipes individually to see if there was fuel and pressure at the inlet to the injector there was lots of both. So next i checked the resistance across the injector (haynes  manual quotes 1.2 - 1.6 ohms @ 15°c) the resistance of my injector measured 2.6k ohms @ approx 20°c

So after many more hours tinkering and still no joy - i bow to the advice of a higher level and this is where you all come in.... what can i try to resolve my problem is it the injector that is fubarred ?
« Last Edit: 01 August 2013, 23:01 by Nobbyclarke123 »
Model - MK3 golf Cabrio
Lump - 1.8 ADZ
Box - 020
colour - Dragon Green

Offline Jasikasisback

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Re: 1.8 DIED WHILST DRIVING - WILL NOT RESTART
« Reply #1 on: 31 July 2013, 17:40 »
Check fuel pump relay No 167 (i think) or relay 30. I don't know how common it is for the fuel pump to pack up on these cars..??? (I have changed the relay 167 and fuel filter on my car but this did not help my problem...but it is the first step..(and cheapest) Maybe you can find someone with a spare relay (or out of their car) close to you and give it a go..:) I know you've checked the voltage to the relay, but it could be faulty...:)
« Last Edit: 31 July 2013, 17:49 by Jasikasisback »

Offline itavaltalainen

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Re: 1.8 DIED WHILST DRIVING - WILL NOT RESTART
« Reply #2 on: 31 July 2013, 18:00 »
If your injector really measures at 2k6 Ohms then you know where to start don't you  :whistle:

How have you measured the resistance? If it is that high this would suggest the valve is not opening. => no fuel
2019 Seat Leon ST FR DSG 135kW - eclipse orange - 23k miles

Offline Jasikasisback

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Re: 1.8 DIED WHILST DRIVING - WILL NOT RESTART
« Reply #3 on: 31 July 2013, 18:15 »
I think the fuel is not getting to the injector...for whatever reason...is it right to think that?

Offline Screech16v

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Re: 1.8 DIED WHILST DRIVING - WILL NOT RESTART
« Reply #4 on: 31 July 2013, 20:05 »
As stated your injector has higher resistance than normal ,change it?

Offline Nobbyclarke123

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Re: 1.8 DIED WHILST DRIVING - WILL NOT RESTART
« Reply #5 on: 01 August 2013, 12:56 »
many thanks for all of your replies, i have checked and replaced the fuel pump relay, but i have no ecu relay as it is an 8v  i have since removed the injector and rechecked the resistance i think the reading of 2.6 k ohms was incorrect and actually the resistance of me... when checking the injector on the bench it reads no resistance.

so i think this is still my problem, i am trying currently to locate one that i can use as a test as the only place i can get a spare is TPS or VW dealer and im looking in the region of £340 + VAT
 
Model - MK3 golf Cabrio
Lump - 1.8 ADZ
Box - 020
colour - Dragon Green

Offline Nobbyclarke123

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Re: 1.8 DIED WHILST DRIVING - WILL NOT RESTART
« Reply #6 on: 01 August 2013, 22:58 »
Just a little update, ive replaced the injector and waheey she is alive again. However another check with vagcom has thrown up 00523 intake air temp sensor open/short circuit to positive. ..


 Think this is the wiring loom so tomorrow its time to splice the plug from another loom to hopefully cure this as I think it may be a dodgy connection ???
Model - MK3 golf Cabrio
Lump - 1.8 ADZ
Box - 020
colour - Dragon Green