Need help after "autotune" - Miata Turbo Forum -Boost cars, acquire cats.

Welcome to   Members

MEGAsquirt A place to collectively sort out this megasquirt gizmo

LinkBack Thread Tools
Old 12-02-2007, 01:07 AM   #1
Junior Member
Thread Starter
iTrader: (2)
Join Date: Dec 2004
Posts: 201
Total Cats: 1
Default Need help after "autotune"

Well, I was in my mspnp real-time display settings and I clicked on "autotune" and everything went to **** =\ I went from just about 14.5:1 afr to "too rich" on the LM1 I turned it off, went to the original basemap from DIYautotune and it's still really rich.

Any ideas on what happened or what I should be looking at?

I'm currently running 460cc injectors.
db84drteg is offline   Reply With Quote
Old 12-02-2007, 01:26 AM   #2
Elite Member
iTrader: (13)
cjernigan's Avatar
Join Date: Oct 2006
Location: Atlanta, GA
Posts: 8,147
Total Cats: 5

When you went back to the original basemap did you setup your reqfuel again? Autotune can't hurt anything. If you don't click burn and just close the window, the adjustments it made go away. They're wiped from the ram.
cjernigan is offline   Reply With Quote
Old 12-02-2007, 01:33 AM   #3
Junior Member
Thread Starter
iTrader: (2)
Join Date: Dec 2004
Posts: 201
Total Cats: 1

yeah, I adjusted the reqfuel again. I just pulled the sparkplugs and cylinders 2 and 4 are drenched in fuel and there's gas all over the ground behind the car. cylinders 1 and 3 are dry.
db84drteg is offline   Reply With Quote
Old 12-02-2007, 09:39 AM   #4
Elite Member
iTrader: (21)
paul's Avatar
Join Date: Jun 2006
Location: Point Pleasant, NJ
Posts: 2,957
Total Cats: 2

how long have the injectors been installed?

i don't know how you dump fuel in 2 cylinders like that AND get fuel all over the ground like that with one problem. sounds like you might have 2 things going on there somehow

take the spark plugs out and get those cylinders dry, too much fuel and you could get vaporlock.

with your key in ignition and turned to on, open the diagnostic box on the driver side and put a jumper(paperclip) between F/P and ground. look for fuel leaks at the injectors or under the car where the hard fuel lines run from the tank to the engine bay. (you should have extinguished and cigarettes at this point).

next check your injector wiring to make sure none of them are shorted to ground.

next pull injectors/fuel from manifold and do the fuel pump jumper again to see if the injectors are leaking at the sprayer ends
paul is offline   Reply With Quote
Old 12-03-2007, 09:04 AM   #5
Supporting Vendor
Matt Cramer's Avatar
Join Date: Sep 2006
Posts: 2,142
Total Cats: 41

Be sure you've set the EGO settings for your wideband. If you accidentally leave the EGO switchpoint at 0.5 volts, it'll auto-tune your ECU to make it run pig rich.
Matt Cramer is offline   Reply With Quote

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 05:36 PM.