2013 5.7 Torqstorm much too lean in CL

[f.creek-ranch]

Injectors are stock, 2 bar SRT4 Map, max 4 psi setup with supercharger pulley.

It goes too lean when it comes to CL. About 18.7 and no matter what injetor scaling I use it doesnt change.

Map seems to be normal.

In OL it idles at 14.7 at 5 ms injector. In CL injectors fall down to 2,5 ms.

I cant find the reason...

testProcharger2bar.hpt

3.hpl

[duster360]

If you're A/F is really maxed out Lean, why do your Upstream O2 sensors think the A/F is really too RICH and pulling -26% Fuel?
That's quite a bit of a contradiction.

So either your 1 Wideband is wrong or BOTH of your Factory Upstream O2 are wrong.

[f.creek-ranch]

NB and WB shows the same values...that isnt an error...

Now it getting spooky....

Setting min inj PW up to 4,5 ms.

Scanner shows...4,5 ms injector pulsewidth. Fuel shows 18,7 AFR ??????
Cold start even shows a higher pulsewith but the same AFR like before...?

8.hpl

I check the Map setting, change the values to stock and the map shows 90 instead of 40 kpa at idle, so thst seems to be ok.

[duster360]

NB and WB shows the same values...that isnt an error...

That sentence doesn't even make sense...lol lets see these "same values".

If the Factory O2 actually thought your engine's A/F was very Lean, the short and long term fuel trims would be very high or maxed out POSITIVE indicating the PCM is ADDING a crap ton of Fuel

But your is the exact OPPOSITE of a properly function CL system but ONLY according to your pos wideband.
Your fuel trims ARE NEGATIVE at idle. Again, which is glaring proof Your wideband and NB O2 are contradicting one another.

Fix your wideband's inaccurate reading

Capture.JPG

[GHuggins]

What he said - your O2's in that last log are pegged 900+mv - very rich considering your trims are already pulling 17ish% fuel even though your wideband is showing 27ish% lean... Your wideband is most likely the problem.

[duster360]

Also both NB O2 sensor's raw voltage are maxed out Rich

O2 Voltage B1S1=3.495 V
O2 Voltage B2S1=3.436 V

[N2speed]

Also you should not run stock injectors with boost on a 5.7

[f.creek-ranch]

last night I thougt it over…maybe there is something wrong with ground cable.

And yes, stock injectors this time. waiting for the new ones but I want to test the stock, how much they can do.
Remember, I only ran 4psi of boost with a 4“ pulley and expect 480-500 hp on fw to be safe.

[f.creek-ranch]

[QUOTE=duster360;675891]Also both NB O2 sensor's raw voltage are maxed out Rich

O2 Voltage B1S1=3.495 V
O2 Voltage B2S1=3.436 V

these are not the right ones. there are 4 channels I can log and the two ones you said are not correct.
The other channels alternates a little bit but stock at 800-900 mv.

[rays04gtx]

last night I thougt it over…maybe there is something wrong with ground cable.

And yes, stock injectors this time. waiting for the new ones but I want to test the stock, how much they can do.
Remember, I only ran 4psi of boost with a 4“ pulley and expect 480-500 hp on fw to be safe.

With increasing effective fuelrail pressure from 58psi to 68psi you can run the stock injectors to 6-7lbs of boost with a small cam ,ran a 06 ram for about 4 years like that with Comp cams 260h cam with a 2.9l whipple.

[f.creek-ranch]

Thanks, man. Thats what I would like to hear...I would take a look at the duty cycle to be sure

I pinned a clamp from ground to exhaust. After this bank 2 begins to work and goes down to 0,05 V.
bank 1 is not very responsive, looks like th O2 is bad ???
WB is even on bank 1.

Can the aftermarket Shortys be th bad guys ? Then I have to grounded the O2?s separately.

I think a set of new O2?s would be a good start...

11.hpl

btw...would be the fuel trims of the banks bounded in the pcm, so that they cant go off their lines in different ways ???

[f.creek-ranch]

[QUOTE=rays04gtx;675936]With increasing effective fuelrail pressure from 58psi to 68psi

can the fuel pump pressure be raised by "pump flow pressure loss" and / or "fuel mass mult vs vac" ?

[duster360]

Also both NB O2 sensor's raw voltage are maxed out Rich

O2 Voltage B1S1=3.495 V
O2 Voltage B2S1=3.436 V

these are not the right ones. there are 4 channels I can log and the two ones you said are not correct.
The other channels alternates a little bit but stock at 800-900 mv.

No they're correct. Its what the PCM is seeing. Chrysler uses a 2.5v step-up voltage on the O2 signal which is 0-1v out of the sensors
.85v+2.5v=3.35v

Also,,ANY exhaust leaks upstream of the wideband will cause it to read a FALSE Lean

[f.creek-ranch]

OK, thanks for the info. But for logging I like to see the 0-1 V signal of the other two channels.

No leaks, checked it twice...

Got problems before when it NA. Couldn't hold 2500 rpm at emission test. I think the O2 is gone bad...

[f.creek-ranch]

This post is superfluous...

One Coil is not working and WB has bad ground....shame on me.

Ive got a pair of 392 injectors, wich fits better to the setting.

Thanks for feedback.

test.hpl

[N2speed]

This post is superfluous...

One Coil is not working and WB has bad ground....shame on me.

Ive got a pair of 392 injectors, wich fits better to the setting.

Thanks for feedback.

test.hpl

stop being cheap and put some real injectors in. Fueling is something that should never be done cheaply

[f.creek-ranch]

Nothing special with a 4" pulley from Torqstorm. I expect a number like 500 HP on flywheel.
Max 4psi should be OK for stock 392 injectors, but I will kepp an eye on it.
A buddy tells me his 5.7 stock injectors went out at 475 HP with an Procharger.
I got LPG for cruising and fuel will be added at open loop.
Works pefekt at NA and should be even work on light SC.