Ignition Timing

Keith853 · 12-29-2005, 04:59 PM

Does anyone know what the base ignition timing should be for the 16V 2.0L engine? Also what conditions should prevail before the test is done, e.g. temperature sensor disconnected or similar.

Working on the premise that the engine is similar to the 16V Passat one 6 degrees BTDC seems to be a likely number.

I am getting slight pinking under heavy acceleration and am currently developing the hypothesis that the base timing is wrong and that the knock circuit is thus running out of room under heavy load.

Any illumination would be very welcome.

Happy new year to you all.

Keith

Biodiesel Bennett · 12-30-2005, 05:59 AM

Working on the same premise as you, I had mine set to six degrees advance. The temp sensor does need to be diconnected IIRC to set it (but I must confess it was done by a friend of mine).
Just out of interest, are you running the car on normal or super unleaded?
Cheers,
Tom

P.S Not sure how similar the 1.8 16v engine is, but:

http://the-corrado.net/forum/viewtopic.php...tion+timing+16v

and these guys are pretty good VW specialists:

http://www.snstuning.com/

Keith853 · 12-30-2005, 01:37 PM

Thanks very much Tom, that confirms the snippets that I have picked up so far.

I am waiting for some new HT leads (one of the plug caps is broken such that the conductor is visible), distributor cap and rotor arm and then I will have a go at checking the timing. I may need to fabricate some sort of HT extension from the plug to the timing light as the plugs are very deeply recessed.

To answer your question, I am running on regular (95 RON) unleaded. I have not driven it very far, picked up last week with a bad kangeroo problem that appeared to be the temperature sensor but may have been a bad connection to the ECU (looking on the optimistic side of things). This only manifested itself occasionally, apparently temperature dependent, and seems to have gone for the moment - I may be asking for more help if it reappears.

I'll post again when I have made the checks.

Cheers and happy new year

Keith

Biodiesel Bennett · 01-02-2006, 07:58 AM

No problem. Good luck with the checks, and let us know once you find the source of the problem.
Cheers,
Tom

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12-29-2005, 04:59 PM	#1 (permalink)
Keith853 Member Join Date: Dec 2005 Posts: 72 Gallery: (0)	Does anyone know what the base ignition timing should be for the 16V 2.0L engine? Also what conditions should prevail before the test is done, e.g. temperature sensor disconnected or similar. Working on the premise that the engine is similar to the 16V Passat one 6 degrees BTDC seems to be a likely number. I am getting slight pinking under heavy acceleration and am currently developing the hypothesis that the base timing is wrong and that the knock circuit is thus running out of room under heavy load. Any illumination would be very welcome. Happy new year to you all. Keith

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12-30-2005, 05:59 AM	#2 (permalink)
Biodiesel Bennett Member Join Date: Nov 2005 Posts: 39 Gallery: (0)	Working on the same premise as you, I had mine set to six degrees advance. The temp sensor does need to be diconnected IIRC to set it (but I must confess it was done by a friend of mine). Just out of interest, are you running the car on normal or super unleaded? Cheers, Tom P.S Not sure how similar the 1.8 16v engine is, but: http://the-corrado.net/forum/viewtopic.php...tion+timing+16v and these guys are pretty good VW specialists: http://www.snstuning.com/

12-30-2005, 01:37 PM	#3 (permalink)
Keith853 Member Join Date: Dec 2005 Posts: 72 Gallery: (0)	Thanks very much Tom, that confirms the snippets that I have picked up so far. I am waiting for some new HT leads (one of the plug caps is broken such that the conductor is visible), distributor cap and rotor arm and then I will have a go at checking the timing. I may need to fabricate some sort of HT extension from the plug to the timing light as the plugs are very deeply recessed. To answer your question, I am running on regular (95 RON) unleaded. I have not driven it very far, picked up last week with a bad kangeroo problem that appeared to be the temperature sensor but may have been a bad connection to the ECU (looking on the optimistic side of things). This only manifested itself occasionally, apparently temperature dependent, and seems to have gone for the moment - I may be asking for more help if it reappears. I'll post again when I have made the checks. Cheers and happy new year Keith

01-02-2006, 07:58 AM	#4 (permalink)
Biodiesel Bennett Member Join Date: Nov 2005 Posts: 39 Gallery: (0)	No problem. Good luck with the checks, and let us know once you find the source of the problem. Cheers, Tom

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