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Old 01-15-2010, 09:11 AM   #61
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Originally Posted by poobs View Post
Thanks. I will do that.
Typically It runs a little rough for about 3 sec immediately after starting and then it recovers and idles fast until it warms up.
Mine runs the same, that area after it catches where it runs rough for a few seconds is your "fixed ASE map/time" you can set it to whatever kpa and alter the time for cold starts at any temp under 80degC to help things.
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Old 01-15-2010, 09:25 AM   #62
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Originally Posted by Scotty15 View Post
I'm tempted to go back to the LoRes code. I didn't have this problem then.
do you have the .1uF cap on js8 to ground?
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Old 01-15-2010, 10:45 AM   #63
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do you have the .1uF cap on js8 to ground?
Yes. Thinking back though the only .1uF cap I had in my "box of electronic stuff" was a cheapie ceramic. I wonder if I'm going outside it's temp range?
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Old 01-15-2010, 10:58 AM   #64
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dunnoz.

post your msq and images of you board mods.
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Old 01-15-2010, 12:10 PM   #65
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Board mods. Sorry about the quality of the pic. MSQ coming soon.........
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Old 01-15-2010, 12:51 PM   #66
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And the MSQ.

I had this thing dialed in to factory like running and starting on the LoRes code. For some reason I had to make things MUCH richer for HiRes. It is still a work in progress. Wideband starts out around 12.5 - 13 when ice cold.
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Old 01-15-2010, 12:55 PM   #67
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Quote:
Originally Posted by CRAIGO View Post
Mine runs the same, that area after it catches where it runs rough for a few seconds is your "fixed ASE map/time" you can set it to whatever kpa and alter the time for cold starts at any temp under 80degC to help things.
Thanks !! I'll try it.
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Old 01-15-2010, 01:05 PM   #68
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Quote:
Originally Posted by Scotty15 View Post
And the MSQ.

I had this thing dialed in to factory like running and starting on the LoRes code. For some reason I had to make things MUCH richer for HiRes. It is still a work in progress. Wideband starts out around 12.5 - 13 when ice cold.

turn baro corrections off under engine constants.

I'd also play with your fixed MAP settings in ASE, try fooling with the MAP value and see what number fuels the best.
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Old 01-15-2010, 04:23 PM   #69
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Do those settings change between HiRes and LoRes code? (Firmware)

As a sanity / reality check I reloaded the LoRes code and my older dialed in map. The car starts and runs just as good as factory once again. Of course it wasn't as cold today.
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Old 01-15-2010, 08:04 PM   #70
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Quote:
Originally Posted by CRAIGO View Post
Mine runs the same, that area after it catches where it runs rough for a few seconds is your "fixed ASE map/time" you can set it to whatever kpa and alter the time for cold starts at any temp under 80degC to help things.
I reduced the Fixed ASE/MAP time period from 5 to 3 sec.

Hard to tell if it did anything beacuse it was awesome ( warm ) here today and the motor takes long to cool off.

I notice that my motor goes into like fast idle every time I start it at least for a few secs even if it is fully warm.

Can that be changed so that it does not race as much once the engine is hot ?

Thanks
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Old 01-16-2010, 12:43 PM   #71
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Originally Posted by poobs View Post

Can that be changed so that it does not race as much once the engine is hot ?

Thanks
Yeah that's fixed Map value, I guess you could set that lower so it idle doesn't race for a given "shut off" temp?
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Old 01-16-2010, 12:56 PM   #72
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Originally Posted by CRAIGO View Post
Yeah that's fixed Map value, I guess you could set that lower so it idle doesn't race for a given "shut off" temp?

Sorry, but I'm not sure where that is...

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Old 01-16-2010, 01:29 PM   #73
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Originally Posted by poobs View Post
Sorry, but I'm not sure where that is...

Crank/Warmup - After Start Enrichment settings - Use fixed ASE/MAP when coolant below (???)

So basically, when your coolant is hotter than your specified temp, it WONT use the fixed MAP period.

Even though you think you are starting the engine while it is still hot, the coolant is likely dropping back into the zones of triggering ASE and fixed MAP values, especially if your running the PnP coolant temp value which is high at 80degC. Remember your coolant while the engine is fully warmed up is going to ~95degC, it'll only take 10-15 mins for that to drop back to under 80degC when the engine is shut off and trigger your fixed MAP setting.
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Old 01-16-2010, 02:09 PM   #74
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Quote:
Originally Posted by CRAIGO View Post
Crank/Warmup - After Start Enrichment settings - Use fixed ASE/MAP when coolant below (???)

So basically, when your coolant is hotter than your specified temp, it WONT use the fixed MAP period.

Even though you think you are starting the engine while it is still hot, the coolant is likely dropping back into the zones of triggering ASE and fixed MAP values, especially if your running the PnP coolant temp value which is high at 80degC. Remember your coolant while the engine is fully warmed up is going to ~95degC, it'll only take 10-15 mins for that to drop back to under 80degC when the engine is shut off and trigger your fixed MAP setting.
CRAIGO
Thank you very much ! I'll try it.

Today I also want to play with the AE to take advantage of a VTPS that I installed a while back.
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Old 01-16-2010, 05:34 PM   #75
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I increased from 80 to 95 degrees next to "Use Fixed ASE/MAP when coolant temperature"


With the coolant temperature around 198 degrees I shut off and restarted but it races again right after warm start up.

Could it be something under idle settings like the Min DC value or something ?
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Old 01-16-2010, 06:02 PM   #76
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I cant really help there. My stock ECU is taking care of my idle, I'm not familiar with how MS deals with idle.
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Old 01-16-2010, 09:19 PM   #77
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Thanks anyway.
Best of luck with yours.
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Old 01-17-2010, 07:34 AM   #78
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If you datalog a start you'll see that for the first few seconds after start it continues to use the cranking DC for the idle valve. So if you set the cranking DC setting lower it wouldn't race as much after start, but it might also not start as well... So might just be something you need to live with.
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Old 01-17-2010, 12:58 PM   #79
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Quote:
Originally Posted by Steve-A View Post
If you datalog a start you'll see that for the first few seconds after start it continues to use the cranking DC for the idle valve. So if you set the cranking DC setting lower it wouldn't race as much after start, but it might also not start as well... So might just be something you need to live with.
That is a very good point!

A while back I was trying to prevent a sagging of RPMs between shifts - I increased the idle DC.
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Old 01-17-2010, 04:27 PM   #80
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Well I've had a play with my settings and things have improved a little. Sadly I don't think we'll see temps as low as they were a few ago (-6degC and lower) so I'll never really know for sure about my cranking PWs at that temp range.

One thing that has really helped alot for me is reducing the cranking advance back to 12deg, set my ASE fixed map for 3 seconds at 84kpa and also make sure that my spark map at 84kpa is also set to 12deg at idle regions and raise the cranking RPM to 450. This means that during cranking my timing is always fixed at 12deg, even when the engine catches slightly and triggers ASE my fixed map value ensures that spark is still firing at 12deg and will do for 3 seconds after the engine has caught.

I've not heard any kicking back sounds yet and cranking for me at 12deg is loads faster too.

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