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-   -   MS3 Starts/Runs rough, Rich as $%#$ nothing helps (https://www.miataturbo.net/megasquirt-18/ms3-starts-runs-rough-rich-%24%25-%24-nothing-helps-77336/)

Gt2560rMiata 02-01-2014 09:03 PM

MS3 Starts/Runs rough, Rich as $%#$ nothing helps
 
6 Attachment(s)
95 NA
Stock engine / Injectors
MSLabs MS3Basic 1.2.3 Firmware
Innovate MTXL Wideband
GM IAT

Car runs great on stock ECU, Starting the car on the MS3, It starts but runs very rough (like its on 3 cylinders) insanely rich 8:1 - 9:1 Changes to VE table or Required fuel seem to have no effect.

Checked ignition timing last time I tried to get it running right, set MS to 10deg fixed then used a timing light and the crank pulley read 10deg so this isn't a timing issue I don't think

Maybe there is a setting im missing or something, I'm pretty fed up at this point lol

Here is a data log, MSQ and a Composite log of cam signal for you guys to check out

thirdgen 02-02-2014 12:50 AM

Post screen shots instead of links for us lazy assholes.

18psi 02-02-2014 01:01 AM

disconnected map vacuum line?

Gt2560rMiata 02-02-2014 01:18 AM


Originally Posted by 18psi (Post 1097909)
disconnected map vacuum line?

Nope vacuum line is all hooked up to the MS3 properly

18psi 02-02-2014 01:21 AM

and its tapped to the vacuum source correctly and no leaks? cause that's the 1st symptom of super richness: map reading too high.

is this a fresh install or did it all of a sudden start doing this?

Gt2560rMiata 02-02-2014 01:29 AM

40kpa while "idling". This is a fresh install, ive never been able to get it to run anything but pig rich

Reverant 02-02-2014 03:38 AM

Emailed.

Gt2560rMiata 02-02-2014 12:51 PM

Rev sent me a tune with a VE table 20 points lower in the low KPA area up to 2k rpm. This had no effect still running super rich 9:1 plenty of white smoke out the tail pipe

Gt2560rMiata 02-02-2014 11:26 PM

Fresh plugs using tune with lowered VE table, ran it for 30sec still pig rich at 9:1, lowered whole VE table 20 points more...no change still 9:1

anyone every have any issue similar to the one im having ?

Ben 02-03-2014 10:15 AM

What exactly are you doing with table switching?

Gt2560rMiata 02-03-2014 11:51 AM

Im not using table switching.

Zaphod 02-03-2014 12:42 PM

Do you happen to have IdleVE switched to on and trying to change the normal VE table?

Gt2560rMiata 02-03-2014 12:51 PM

IdleVe is off

Ben 02-03-2014 02:50 PM


Originally Posted by Gt2560rMiata (Post 1098227)
Im not using table switching.

According to your tune you are, and your VE1 and VE3 tables are pretty different.

Reverant 02-03-2014 04:11 PM

They are not active per the data log?

Ben 02-03-2014 04:43 PM


Originally Posted by Reverant (Post 1098353)
They are not active per the data log?

Not active, but enabled, and the values in VE3 are extremely low. Makes me think that VE3 was being adjusted instead of VE1.

Gt2560rMiata 02-04-2014 11:06 AM

Tryed different tune making sure table switching was off. Had no effect.

Ben 02-06-2014 11:24 AM

What had no effect?

Did you reduce the values in fuel table VE1 and or reduce ReqFuel?

Gt2560rMiata 02-06-2014 12:32 PM

Turning of table switching, which wasn't active but enabled. Ive cut reqfuel in half, also tried uping it 50% either way it wants to run poorly at 9:1

Zaphod 02-06-2014 01:54 PM

Stuck injector?


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