Why God Why! (Megasquirt Enquire)

[Stangy]

An NA motor would not like the spark table you have, 50* timing advance is too much, unless you are running rocket fuel.... What did the spark map look like when the motor was NA? That is how it should be below 90-95 kPa, and you are going to have to be very careful with timing when in boost with a stock CR. Even with only 8-9#'s boost.

i have made the decision to take it to a prefessional tuner before i make something go bang. i have tried for weeks, tried several dozen changes..a million ve, spark and afr setting. Nothing helped. time for a pro to take a stab at it.

[Stangy]

quick question. Under basic settings and ignition options/settings..what should my figures look like?

spark mode
trigger angle
angle between main and return
oddfire small angle
use cam signal if available (on or off?)
skip pulses
ignition input capture
spark outputnumber of coils

thanks

andrew

[cant get a password]

Have you thought about sending your ms to Paul kpt tuning just to make sure it is workimg right? I sent him mine when I bought it second hand off of craigslist he checked it set it up correctly to run my car with a base map and I have had zero issues other than my wideband messing things up because it was not grounded correctly. I switched off the wideband in ms and the car rums great now manually tuning it. I just have not had time to wire the ground up with the ms grounds but since my cars runs so good now I am not in a hurry.

[need_a_VR6]

Post up your msq, it's easier.

[Stangy]

Will do tonight

[Stangy]

http://www.filefactory.com/file/ee45...urrentTune_msq

my msg above. made the spark table less agressive. new ve map. afr are consistant. to me it looks like a great start..i have not tried it on the car yet..before i do, does anybody see any issues with the msq?

the bucking is killing me..again

62lb high imp injectors
8.7psi
2.0 16v 9a stock comp
autotech sport cams

[ps2375]

Other than the coolant temp for the EGO correction being at 64*F, but that is set to o%(switch off). Just go easy with the throttle and let the VEA do it's job.

[Stangy]

Will give it a go tomoro. If its still acting up after the analyser does its thing what type of mechanical things should I check..what comes to mind is

Plugs-they are new and gapped at. 25 (ngk iridium)
distributor wires- new as of last summer
fuel filter- new
CIS fuel pump- its new
Massive boost leak

Anything else?

[Stangy]

Maybe a fried ignition coil?

[ps2375]

Maybe a fried ignition coil?

If it were that, why is it running at all?

[Stangy]

If it were that, why is it running at all?

Running.idles nice.

[ps2375]

I must've missed it somewhere, but how are you triggering the coil?

[Stangy]

OEM distributor

[ps2375]

nope, that is your rpm/timing signal to MS. What actually fires the coil?

[Stangy]

nope, that is your rpm/timing signal to MS. What actually fires the coil?

No idea haha

[Stangy]

What are the usual options. Thia might help me out

[need_a_VR6]

Transistor in Q16, 7 pin icm, etc

[Stangy]

How would I find out? No idea

[ps2375]

Look in engine compartment for VW ICM(Ignition Control module), pop the lid on MS and see if Q16 is installed...

[Stangy]

Look in engine compartment for VW ICM(Ignition Control module), pop the lid on MS and see if Q16 is installed...

It uses vw icm for ignition drive. Confirmed by previous owner/under hood check. Used ign driver. Its not a Ms hardware issue..car would not start if it was. Ms wiring and hardware did not change from pre forced Ind.

[ps2375]

Your Dwell settings for the VW ICM should be :

"Dwell Control" = Fixed Duty
"Use:Spark Output Duty Cycle" = 50% Duty Cycle

http://www.msextra.com/doc/ms1extra/...htm#boschsetts

[Stangy]

Your Dwell settings for the VW ICM should be :

"Dwell Control" = Fixed Duty
"Use:Spark Output Duty Cycle" = 50% Duty Cycle

http://www.msextra.com/doc/ms1extra/...htm#boschsetts

Thanks! Ill make those changes and see what happens.

[need_a_VR6]

That will be a huge difference.

[Stangy]

That will be a huge difference.

Fingers crossed! I am not near my comp was the msq I posted way off in that area?

[ps2375]

yes.

[Stangy]

Changed it now the car won't start..what do I have to change in my ve and spark table to reflect the dwell change?

[Stangy]

Starts great at the old dwell setting. At 50% fixed duty nada

[need_a_VR6]

Nothing resync the timing.

[Stangy]

The spark output inverted was also off in my n/a msq. Also cranking timing was on trigger return as well on my n/a msq. Should I put these back to my n/a setting?

[ps2375]

Yes, why would they change if none of the hardware changed?

[Stangy]

Th car is allliveeee! Mohaha. Thanks everyone who helped. Turns out I needed to switch all dwell settings to my n/a set up...I'm an idiot. No traction in any gear makes me happy and sad..alot of ve alalyser to follow!

Thank u all!!

[Stangy]