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car battery & system problems,plausible?


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oldspark 
Gold - Posts: 4,913
Gold spacespace
Joined: November 03, 2008
Location: Australia
Posted: January 14, 2015 at 6:16 PM / IP Logged  
Forget about hypothetical causes - it could be a nearby transmitter (which IMO is more likely than others reasons given) - FIND IT.
But IMO the info you have been given is wrong and I'd need wiring diagrams else component information or respected qualification to think otherwise. But with my experiential probabilities in mind, in absence of further into, if any reader wants to place bets...
Of course if Mr VW is correct, it can't be the ECU (blowing the Hall) can it? And replacing the (Hall) relay will solve the problem...
custum 
Member - Posts: 49
Member spacespace
Joined: June 25, 2014
Location: Australia
Posted: January 14, 2015 at 8:09 PM / IP Logged  
Just put it in ... there's very little hope left. Checked engine,immo on vagcom cleared codes (nil), Checked the ignition regulator (coil) gives 26.7v with key on, 22v whilst cranking, current in leads whilst on/cranking and checked tdc with rotor and cap position. Will take off spark plug later for spark check...but what's the use...hall senders gone already?!
I've got a wiring diag....somewhere, still looking for you.
oldspark 
Gold - Posts: 4,913
Gold spacespace
Joined: November 03, 2008
Location: Australia
Posted: January 14, 2015 at 8:18 PM / IP Logged  
So you have a 24V system?
I thought they were 12V systems.
If you have a 24V battery in a 12V vehicle, I have a hunch as to what is blowing your system....
I'm also curious as to what "ignition regulator" involves a coil. Do you mean an EMS or IGN relay (and if a relay, it's OUTPUT voltage), or the alternator terminal's voltage...???
howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: January 15, 2015 at 2:13 AM / IP Logged  
They never had a 24 Volt system unless this vehicle is used a motor home with a bad split charger.
Done loads of alarms, remote starts, Bluetooth, tracking, always 12 Volts.
oldspark 
Gold - Posts: 4,913
Gold spacespace
Joined: November 03, 2008
Location: Australia
Posted: January 15, 2015 at 2:18 AM / IP Logged  
Thanks - just as I thought.
custum - how do you account for your measured typical 24V system voltages?
What and where were you testing - what coil?
custum 
Member - Posts: 49
Member spacespace
Joined: June 25, 2014
Location: Australia
Posted: January 15, 2015 at 4:11 AM / IP Logged  
Sorry, the multimeter said 26.7.... amps!? Ac or DC ?! Not 24v. As long as it said something, v with a black curvey line.....
Well I'm off to an auto elec. Nothing but nothing here.
Thanks for your time.
howie ll 
Pot Metal - Posts: 16,466
Pot Metal spacespace
Joined: January 09, 2007
Location: United Kingdom
Posted: January 15, 2015 at 4:16 AM / IP Logged  
You're measuring AC!!!
So can we credit anything you've posted?
Probably spent far too much money on a simple fault.
I've said this before but one reason I'm against people using DMMs without training/knowledge is akin to giving a 5 year old an AK47.
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