88rxn/a

iTrader: (6)

so my car has been runnin great so far...just your typical hicups for a 6 port turbo....it still had its rich spots but the other day it got really bad...right beforethe secondary injectors kick on it gets reaslly bad...9:9 to 9:4 at 3K up till the secondaries kick on...then its fine...i dont know why it started this but its a recent NEW problem...the secondaries are fine as far as richness and it only starts at 3K RPM's...i have my safc turned to -40 right now at 3K and still get get it any leaner....i even changed the NE point on the SAFC...it was 3,600 i think and now i have it at 3200 and its still bloody rich...what is going on????
it just started getting really nice out if that matters??? from 40-50 ish to 60-70 ish...

SureShot

I'd check the AFM
Clip an ohmmeter on the AFM & work the flap.
The resistance values should start around 150-200, the go up in steps to around 550-600 ohms as the door opens, then near the full open end of the stroke, it may drop back to 400.
It seems weird that the sweep is non-linear, but the 3 working AFM's I tested all did that.

88rxn/a

iTrader: (6)

thanks..it is a tII AFM on a n/a harness....im using tII AFM and boost sensor with the rtek...should i try another AFM as well???

88rxn/a

iTrader: (6)

ok...going by this photo i got:
E2 --Vs
275--- 550-680 ish it wouldnt stay still

E2---Vref
it was 280 and when i opened the flap it did nothing...
is my AFM meter shot???

88rxn/a

iTrader: (6)

i did the same test to another AFM that IS a N/A AFM and its the same xact reading about...apparentley ive been running a n/a AFM now and not knowing it...and i must be doing the test wrong since the second test does nothin...WHAT am i doing wrong??? what would cause my problem??

and their are 2 E2's...im guessing i use the left one to test???

SonicRaT

iTrader: (6)

To begin, I really wouldn't go yanking -40% out of your fuel map especially under load. Did the power change at all when this happened? Does it hiccup/do anything strange at that time?

88rxn/a

iTrader: (6)

no power change...hesitation though because its so rich(9:8 via wideband)...i did turn it back up (safc)..i was just seeing how far it would go....

88rxn/a

iTrader: (6)

changed the AFM with another and still same problem...im at a loss here on ideas...anyone know whats going on???

88rxn/a

iTrader: (6)

c'mon...what is the deal????
im stumped on this and been searching forever...
please help....

SonicRaT

iTrader: (6)

Get a standalone? What do you expect us to do for you? It's not all that difficult, start with the normal crap (check every sensor, replace plugs, clean your injectors, etc).

88rxn/a

iTrader: (6)

thats the thing...all the normal things have been replaced..plugs, wires, filters and such....
i dont know what sensores i should start checking?
standalone is in the future...someday

iceblue

The only time I have ran into this is with the following items.

AFM
Injectors
Injector wiring.

88rxn/a

iTrader: (6)

thanks... i ill check into the injectors
i just didnt think it would be the injectors since they were cleaned at the time i put this project together last summer...so they have about 1,500 miles on them...ill still check them though...