No spark won't start

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dulux72
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Posts: 2
Joined: Thu Oct 21, 2010 10:37 pm

No spark won't start

Post by dulux72 » Sun Dec 17, 2017 8:00 pm

Hi

I wonder if anyone can point me in the next direction to isolate the issue I'm currently having

2002 9N polo 1.2 with a AZQ engine

Drove perfectly
Parked up and left for about a week and now won't start
Turns over but not even a cough
Fuel OK
Compression OK
No Spark
I've replaced the all the coils with known good ones but still no spark

Car has been scanned with a fully licensed VCDS and no faults are logged

Anyone with any idea where to go next ?
Thanks in advance

littlepolo
Silver Member
Posts: 289
Joined: Thu Jul 21, 2011 9:47 pm

Re: No spark won't start

Post by littlepolo » Sat Dec 23, 2017 6:35 am

Camshaft Position Sensor could give a no spark condition, though I would expect a DTC.

Walton
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Posts: 3
Joined: Mon Mar 19, 2018 9:28 am
Drives: Polo 9N 1.4 FSI
Location: East Lancs

Re: No spark won't start

Post by Walton » Mon Mar 19, 2018 10:56 am

I had a similar issue which flummoxed the AA guy, my trusted mechanic and his trusted auto electrician.

In the end, I had to have the ECU repaired, and all in all it came to £600ish.

Nightmare.

Saffaboy78
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Posts: 2
Joined: Fri Aug 03, 2018 3:45 pm
Drives: 1.2 9n polo azq engine
Location: london

Re: No spark won't start

Post by Saffaboy78 » Fri Aug 03, 2018 4:12 pm

@ Walton,

Who repaired your ECU?

RUM4MO
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Posts: 3392
Joined: Sat Dec 30, 2006 9:12 pm
Drives: B8 S4 & 6R/6C1 1.2TSI 110
Location: Mid Lothian

Re: No spark won't start

Post by RUM4MO » Fri Aug 03, 2018 5:28 pm

BBA Reman I think is the name of one of these places that will test, if okay charge a fee and return it, if faulty they will fix it and return it and it will have the same coding as it did when you removed it, so just plug in and go - if that was the fault.

http://www.bba-reman.com/gb/index.aspx


Edit:- I was always under the impression that in this exact situation, it is normally the static timing that has slipped when the car was next spun over due to the chain jumping a tooth or three? Has the static timing been checked, okay compression should normally start to drop off but maybe not too much before starting is impossible due to static timing issues?

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