No spark
Posted
#1576618
(In Topic #212677)
Newbie
No power from black and red wire from coil -ve
mk 1 golf 1.6 8v is cranking but won't fire up, after a bit of investigation I've found that there is no power going through the black and red wire that is connected to the coil and there is no spark coming from the coil.
What at would be the next step to investigate why there is no power going through the red/black wire? I've checked all fuses and they're all ok.
im learning as I go with this and can't seem to find the best way to fix this.
Thanks in advance.
Posted
Local Hero
It fires the coil.
What do Divorces, Great Coffee, and Car Electrics all have in common?
They all start with GOOD Grounds.
Where are my DIY Links?
They all start with GOOD Grounds.
Where are my DIY Links?
Posted
Newbie
Posted
Local Hero
ie: Brother bought an old 23 window bus in California, and planned to drive it across the country. He was in Death Valley, at a rest area to have a rest, while his wife stayed in the car with the key in and the radio on…..
He got in and dang the car wouldn't start,,,,,,
Instead of calling his brother a VW nut. He rented a truck and trailer and towed it home. When I found out about it, I said did you did what as it was the first I had heard of his purchase…..and trip. I said, Change the condenser 2 bucks, later he was motorvating. I could of saved him 1400 bucks, but would he call me? NOOOOOOOOO.
Try the condenser it very cheap and very prone to frying.
What do Divorces, Great Coffee, and Car Electrics all have in common?
They all start with GOOD Grounds.
Where are my DIY Links?
They all start with GOOD Grounds.
Where are my DIY Links?
Posted
Newbie
Posted
Local Hero
What do Divorces, Great Coffee, and Car Electrics all have in common?
They all start with GOOD Grounds.
Where are my DIY Links?
They all start with GOOD Grounds.
Where are my DIY Links?
Posted
MOTY 2013
you can bin the wire entirely and it should still run, its not needed for the engine.
if its points ignition there is a wire from them to the coil negative, which goes to ground whenever the points trigger and this in turn makes the coil spark.
the rev counter picks up on this negative pulse as does the fuel relay if its a GTI.
Hello my name is John and I'm a dub addict.
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My wiring diagrams and other documents have moved here:
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Posted
Newbie
I was checking the wires the other day and they all seem fine so I'm going to check the coil with a multimeter. The guy I bought the car from had put a new coil in the car as well as the old coil so I presumed that it was working but there's no spark coming from the coils at all so I'm gonna have a check. Failing that I'm guessing maybe a bad earth and after that I'm all out of ideas…
Posted
MOTY 2013
if it has the resistance wire you should have a black from the starter motor pin 15a which bumps the coil voltage up to full 12v while cranking, to help it start./ be sure to check this as well
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
Posted
Newbie
So I found the culprit yesterday! Long story but the earth wire inside the distributor had come loose which I think had caused the green wire from the distributor to the coil negative to fry. I soldered the earth wire back to the distributor wall and replaced the green wire which almost sorted it.
I used a multimeter to test the coil and the original was knackered. The guy that I bought the car from had supplied me with a new coil but when I tested the secondary coil resistance it was only 6000 ohms. I'm guessing that this is a coil for an electronic ignition? Anyhow I bought a new coil and now I have spark! 😬😬👍💪🏻
On to the next problem now…
Although the car is starting it's not idling very well and it's popping at lower revs. I've tried to adjust the carburettor but no luck yet. If anyone has any advice that would be great, I'm going to trawl the forum for info though.
Posted
MOTY 2013
check the carb over carefully for air leaks, the rubber flange it sits on may be split or leaky vac hoses, loose inlet etc
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
Posted
Newbie
I've literally just removed the carburettor and I have a servicing kit arriving in the post tomorrow so it's going to get a good clean and I'll change the gaskets o-rings etc and check the jets. The hoses all looked okay so hopefully a good clean and service will work? The car had been sat in a car park for 4 years before I bought it and not started so I'm hoping it just needs a bit of tlc…
Whilst I have your attention rubjonny, the brake pedal has stuck down since I parked it up which is next on my list of jobs to tackle. Whats the best way to start troubleshooting that problem? Completely off topic I know but your advice is much appreciated.
Posted
MOTY 2013
the cross bar comes off relatively easily then you can give it a good clean and re-grease.
Hello my name is John and I'm a dub addict.
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
My wiring diagrams and other documents have moved here:
VAG Documents & Downloads
You'll need to sign into google/gmail for the link to work! (its free!)
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