S6 No Spark

[martinws]

Does the LED not just tell you that the sensor is getting 12v and works? I guess the signal wire might be broken? I had an intermittent non start for months and turned out to be damaged cam sensor wire

[JP]

Have you checked pins on wiring loom plug to hall sender!

[A1QSHIP]

[/QUOTE]

Looking at the picture above. Are your POS connectors wired together correctly? Both brown connectors to one POS & both black connectors to one POS. I have seen this mistake made before.
HTH, Chris

[UrS4boy]

Looking at the picture above. Are your POS connectors wired together correctly? Both brown connectors to one POS & both black connectors to one POS. I have seen this mistake made before. HTH, Chris

Good one Chris.

[macspring]

While I definitely don't profess to understand electrics, could it be the ignition switch? easy and cheap to replace which will rule out the switch being a / the culprit.

Looking forward to hearing what it turns out to be.

Based on member's experiences in the past, consider double checking stuff methodically again even though you've done it already.

If you're lucky it may be something that you can find by following people's suggestions, rather than the killer "one in a million fault" that you only find after you've broken the car for parts or burnt it.

[audi660]

I have the 1.8T coil mod from 034 Motorsport on my car,.
I've rebuilt 2 S6's and an RS2 and never had a problem like this

[audi660]

I think the LED test is for the signal wire from the ecu.
Have re-checked all wiring and earths and also replaced the 5A fuse in the red holder above the ecu for peace of mind.
Could it be the Cam pulley by any chance? I do have a spare one

[newsh]

It could be damage to the pulley or the timing not correct

[UrS4boy]

It could be damage to the pulley or the timing not correct

Like this:

[prj]

Malfunction code on AAN = TIMING IS OUT!!!

[audi660]

I have checked timing again and it's spot on.
Would it cause no spark if timing is out by 1 tooth?

[UrS4boy]

G4 Timing Pin Location Info

Have you checked that the G4 timing pin is still on the flywheel?

G4 Timing Pin Location Info:

http://forums.quattroworld.com/s4s6/msgs/51259.phtml

[audi660]

Yes the pin is on the flywheel

[UrS4boy]

Yes the pin is on the flywheel

Is this the stock AAN Dual Mass Flywheel (DMFW) or something single mass, like a 7A?

[newsh]

Read this.. https://www.picoauto.com/library/cas...ilure-to-start