What are the correct primary trigger settings for VAG 60-2 oem wheel

[mattias]

You can't make a reliable triggerlog with 60-2 with the engine running, too many events to send them all over the serialport, only cranking works and maybe a looow idle.

[boostd audi]

that was cranking..  it did not start.

[mattias]

Ah hmm .. didn't look properly at the time scale then.

Seems like you get some noise in the signal.  What happens if you disable the ignition coils? (.. and all other current consumers)

If you can't find the reason there you might need to use a stronger pull-up towards +5V, I think the standard is 18kOhm but you might need a stronger one.
Measure Ohm across the signal+ground of your trigger sensor, what does it say?  200-300 Ohm, or 900-1000 Ohm?

The problem might go away when the engine is running, as the trigger signal from inductive sensors gets stronger with increased speed.
Didn't really catch what the problem was, did you have your engine running previously or trying to get it started ?

[boostd audi]

i measured signal to ground on sensor and it is about 100ohm

here is a new trigger log. its a little more clear.

http://www.box.net/shared/7u9vc7151c

[boostd audi]

this is a new setup i am trying to get running.. i got it started but it would idle poorly and fall on its face when you rev it bc of trigger errors (too mnay /too little)

[mattias]

i measured signal to ground and i get about 200 but it keeps climbing.. went to almost 500

Is this measured with a disconnected sensor, directly in the connector on the signal and ground pin?

What voltage do you measure in the connector going to the ECU, with the sensor disconnected, between signal and ground pin?

[boostd audi]

yes i measured with disconnected sensor.. 

 i get about 3.05 volts on the ecu side of connector

and i am testing good ohm under 100 on the disconected sensor end..  had it on the wrong setting above..

i check both twice and got same readings.

double checked my wiring and ohm test on my wiring is good as well from ecu pin to sensor connector

[mattias]

The voltage created by the inductive trigger sensor will overcome any small noise that can appear.
Voltage is greater with increased trigger wheel speed.

[boostd audi]

i am going to double check my tdc degree today hopefully i am a degree or two off and that is causing my idle error

[boostd audi]

also, does my bosch type vr sensor shielding get ground to engine block near sensor like robs user guide says,

or do i connect the shield to the ground from pin 26 so its connected to ecu like the wiki manual says..

right now shielding is grounded on block.. should i try it to pin 26.. i wouldnt think it matters much but i figure i would check

[mattias]

Connect the shield at the ECU, that is how it's done in most (if not all) Bosch Motronic applications I've seen.

i am going to double check my tdc degree today hopefully i am a degree or two off and that is causing my idle error

That is not very likely to cause an error, that's like changing from 10 to 15 degrees idle timing, idle speed will go up slightly and that's it.

Your problem is electrical.

[boostd audi]

the first trigger log i posted the coils were connected so i got noise from them

this trigger log is with coils disconnected.. to me it looks identicle to  the two other trigger logs i have found from searching wiki and forum for other VAG 60-2..

do you still think i have noise based on this trigger log

http://www.box.net/shared/7u9vc7151c

[mattias]

It's definatly noise, your latest log looks perfect so your noise is induced by the ignition system.
It's not hard to spot - extra trigger teeth appear with strange intervals.

If you upgrade to latest firmware and VemsTune you can get more information from the log and  see the ignition firing  for each coil.

[mattias]

Did you fix the trigger wire shield?

Some coils have a shield that needs proper grounding. Wasted spark coils are usually not built that way.
In OEM harnesses where the ECU has built-in igniters the wires for grounding the coils are shielded, I don't think that will help here.

Is the engine properly grounded? I recommend at least two places, one at the starter and the other near the generator.

It could be a lot of things, you have to try a few before you crack this. Swapping coils and spark plug wires would be a good start.

Try the Bosch coil, I once had a customer with a Audi 3B engine and used (ebay) 034 passive coils, those went into the trash bin after having massive issues with noise. The VAG 60-2 crank seal trigger with Hall sensor was used on that engine, it still caused problems with the signal. Not saying 034 coils are bad, just be critical about the condition of everything unknown.

[rob@vems.co.uk]

Yes there was another post on here where someone said they'd grounded the shield at both sensor and ECU ends, which effectively removes the grounding.