Announcement

Collapse
No announcement yet.

Checking out the MMS PCM for a 2001 Grand Am GT

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Checking out the MMS PCM for a 2001 Grand Am GT

    I won't be posting any specific change to fuel and spark, other than there were no changes to fuel besides the idle area of the MAF.

    Click image for larger version

Name:	Advertised.jpg
Views:	0
Size:	26.5 KB
ID:	427618
    This is how its advertised. The only thing that is claimed to be done that isn't, is the shift firmness. No changes were made to the transmission that would impact the firmness of each shift.

    Click image for larger version

Name:	MMSShiftPressure1.jpg
Views:	0
Size:	44.7 KB
ID:	427622
    Click image for larger version

Name:	MMSShiftPressure2.jpg
Views:	0
Size:	44.7 KB
ID:	427623

    While not mentioned, it is hard for me to believe the TCC hunting in first gear wasn't addressed either. Its a simple fix in the tune and I thought it was common knowledge for tuners but I guess im wrong.

    Click image for larger version

Name:	MMSTCC.jpg
Views:	0
Size:	46.4 KB
ID:	427624
    The real kick in the nuts for me is that there are no fueling changes for power enrichment. I have yet to tune any car that was optimal on the stock fueling for wide open throttle. Not only are there no changes to fueling, but the delay before extra fuel is added is also stock. Thats a pretty big problem for a 65mm TB that you might only give 70% throttle to accelerate and the engine is still being commanded stoich.

    Click image for larger version

Name:	MMSFueling.jpg
Views:	0
Size:	53.8 KB
ID:	427619

    The tune is supposed to be setup for the stage 2 3500 MMS kit. it comes with a 180 stat. Gonna be fun when the fan doesn't shut off until it hits 175 degrees.

    Click image for larger version

Name:	MMSFans.jpg
Views:	0
Size:	60.7 KB
ID:	427620

    This one makes no sense to me. Why would you disable P0300? Its for Random Misfires.

    Click image for larger version

Name:	DisabledP0300.jpg
Views:	0
Size:	179.7 KB
ID:	427621

    Here is a list of all the changes they actually make.

    Click image for larger version

Name:	MMSvsStockList.jpg
Views:	0
Size:	253.5 KB
ID:	427625



    Attached Files
    Ben
    60DegreeV6.com
    WOT-Tech.com
Working...
X