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Model specific boards => Golf mk4 => Topic started by: Perryd84 on 08 February 2019, 13:19
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Hi all long time since i've had to post on here but i need some expert help!
So couple weeks ago my AGU gti started running lumpy with no power. Turned out it was the ignition amplifier which sorted that issue. Along with this i changed the spark plugs as they needed doing anyway.
Week later driving along changed gear and the engine died! Wont start! Back in the garage they changed the cam sensor and it started. Drove home cut out dead again!
So the garage came out to the car and saw a fuse had blown so changed that got it running then bang it died again. Another fuse blown! The garage are washing their hands of it saying the amount of work to find whats wrong is not worth it on a car this old!
Need some desperate help! Is it worth taking it to the dealers or shall i cut my losses and break it? :cry:
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Have you had it scanned to see if there's any fault codes?
I'm sure there'll be a common issue for these, isn't there a box by the battery with a load of power connections that get water in and cause issues sometimes ... might have made that up re Mk4s mind
Don't take it to a dealer, it'll cost you a fortune
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VCDS Version: Release 11.11.3
Data version: 20120401
Saturday,09,February,2019,18:31:21:32264
Chassis Type: 1J - VW Golf/Bora IV
Scan: 01 02 03 08 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57 75
76
Mileage: 153160km/95169miles
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Address 01: Engine Labels: 06A-906-018-AGU.lbl
Part No: 06A 906 018 R
Component: 1.8L R4/5VT MOTR HS D06
Coding: 04000
Shop #: WSC 00028
VCID: 31630B1DFB327B1
No fault code found.
Readiness: N/A
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Address 03: ABS Brakes Labels: 1J0-907-37x-ABS.lbl
Part No: 1J0 907 379 H
Component: ABS/EDS 20 IE CAN 0001
Coding: 13504
Shop #: WSC 00028
VCID: 36693801125C5C9
No fault code found.
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Address 15: Airbags Labels: 1J0-909-60x-VW3.lbl
Part No: 1J0 909 609
Component: A AIRBAG VW3 SG 0002
Coding: 00065
Shop #: WSC 00028
VCID: ECDD5A699C90569
1 Fault Found:
00532 - Supply Voltage B+
07-10 - Signal too Low - Intermittent
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Address 17: Instruments Labels: 1J0-919-xxx-17.lbl
Part No: 1J0 919 931 B
Component: A4-KOMBIINSTR. VDO V01
Coding: 04442
Shop #: WSC 00401
VCID: 2D5B176DE70A1F1
Subsystem 1 - Part No: IMMO
Component: IDENTNR: VWZ7Z0X1404810
IMMO-IDENTNR: VWZ7Z0X1404810
No fault code found.
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Address 46: Central Conv. Labels: 1J0-959-799.lbl
Part No: 1J0 959 799 AH
Component: 4V Zentral-SG Komf. 0001
Coding: 00256
Shop #: WSC 00028
VCID: 840D12C99400BE9
Subsystem 1 - Part No: 1J2959802C
Component: 4V T��euerger. FS0002F
Subsystem 2 - Part No: 1J2959801D
Component: 4V T��euerger. BF0002r
5 Faults Found:
00953 - Interior Light Time limit
25-10 - Unknown Switch Condition - Intermittent
01134 - Alarm Horn (H12)
49-00 - No Communications
00943 - Heated Exterior Mirror; Driver Side (Z4)
35-00 - -
00929 - Locking Module for Central Locking; Front Passenger Side (F221)
27-00 - Implausible Signal
00944 - Heated Exterior Mirror; Passenger Side (Z5)
35-00 - -
End --------------------------------
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So just got it on the scanner results above.
I know the passenger door doesnt work on central locking and the alarm horn doesnt sound all the time these issues have been on going for years!
Not sure about the airbag issue the voltage thing is usually if the batterys been unplugged right?
No codes in the engine!??! Baffled!!
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I cop some silly stuff with my MK4 from time to time as well and this is what I always do first...
Remove the battery leads and give them a good clean...leave them off for about 20 mins or so. Flip the lid on the black plastic box that sits on the top of the battery and check that all the connections are clean and tight...any problems in there will be very obvious.
Make sure there is no moisture in that box and give it a good dose of WD40 before closing it again.
Then I trace back any and all leads from that top box and make sure they are connecting properly to whatever they component or earth they are supposed to. You might be surprised at what you find!
Re connect the battery, start up and go for a drive...keep your fingers crossed. May not solve your problem, but it won't cost you anything to try.
:smiley:
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So the crap garage I took it to have finally told me what fuse keeps blowing.
It's the ECU fuse. Changed the ECU with my old one and the same thing happens.
It seems once the car is under load it blows the fuse!?
MAF is fine, lambda is fine, ignition amp is brand new, coils are fine (although one does get really hot)
Really need help on this
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I'd be looking at the cam sensor they changed first, most of the time its what work was done most recent that causes an issue.
Take it you gapped the plugs right etc?
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All fixed now and she's back on the road!
Turned out to be faulty wiring to the coil packs which kept blowing them and subsequently shorting out other systems. The garage I took it to got though 6 brand new coils before figuring it out.
Glad she's fixed now and back :grin: