fuel trims 100% ???????

[PushinPsi]

my fuel trims are a constant 100% low mid and high
even when im getting (max30)knock at 4500rpm

does this mean my ecu is running in closed loop?
or like a get home safe mode?

beacuse im throwing a code 21 coolent temp senser, and i think my isc is shot (bad idle while rolling to a stop in neutral)

any ideas i have more info if it helps..

thansk tyler

 

[PushinPsi]

RIGHT?

cause if it was knocking, the ecu should send as much fuel as possible (140%) , but its not.

till i figure it out i have my car set to 12psi only seeing 1 knock count

while im crusing or at idle is my timing suposed to be at ~30deg?????
under boost it sits at ~18deg


~18ms injectors how do i trans late this into duty cycle???

 

[OMN_DSM]

~18ms injectors how do i trans late this into duty cycle???

What RPM are you seeing 18ms at?

 

[painmaster]

Check this link out. Injector duty cycle is a function of RPM and pulse width. So it depends on what your RPM was when you saw 18ms.

http://www.ecanfix.com/~mdhamilton/dutycyclechart.html

 

[DrZiplok]

Fuel trims relate to closed-loop operation. Knock is typically only experienced in open-loop operation. At any rate, no, knock will not impact your trims.

 

[PushinPsi]

THE 18- 19MS I SAW WAS AT ABOUT 5K RPM AT 18PSI


NOW I HAVE THE BOOST SET AT 12PSI FOR NOW AND I STILL SEE 18MS AT AROUND 5K

IM WAITING FOR MY FMIC AND TB ELBOW, AND THEN ILL BEGIN MY JOURNEY OF TUNING TO ~20PSI....THAT IS IF MY INJECTORS WILL TAKE IT.


AND CODE 21...COOLENT TEMP WILL BE FIXED SOON,THIS IS MESSING WITH THE CAR BAD

 

[kpt4321]

Pressure test it. 18 ms at 12 psi sounds like a boost leak.

 

[Phoenyx]

I think that the coolant temp sensor bad will definitely affect your ECU in how it selects fuel and timing. Coolant temp, I would imagine, is a factored variable for computing that stuff.

I say get that coolant sensor fixed, then re-log.

-M

 

[PushinPsi]

WILL DO, I JUST STARTED SCHOOL THIS WEEK SO IVE BEEN BUSY, ILL LET YOU KNOW WHAT I FIND.. I DO HEAR A HISSING FROM THE INTAKE MANIFOLD BUT I CANT FIND ANYTHING YET...AND THE TEMPSENSER IS ON THE WAY..BROKE FOR NOW

 

[Silent2g]

im seeing 18ms at 6k on 17.5 psi with 510's and a 190 fuel pump.

{shrugs} got me

 

[PushinPsi]

WHAT TURBO ARE YOU RUNNING? WHAT WOULD A ADJUSTABLE FPR HELP?

MY CURRENT FUEL SET UP
16G
550 RC'S
255 WALBRO
MAFT 3.5IN MAS
TMO DATTALOGGER

 

[PushinPsi]

FOR A BOOST LEAK TEST

CAN I PLUG THE INLET SIDE OF MY TURBO, T IN A BIKE PUMP TO A VACCUM LINE,AND PUMP PUMP PUMP, AND HOPE IT HOLD THE PRESSURE,????