what is this log telling you?

[5.7ute]

Johngear, do you have the stock file from your vehicle?

[JOHNGEAR]

hi, yes, this is not the stock but it is what we(L31 owners) are told to use.

[5.7ute]

What are the flow rates of the injectors you are running? Things just dont seem to be calculating out to me. 8-9ms PW at a 700 idle for example. Duty cycles over 200% at Wot.
Do you have access to a wideband to get some reliable AFR's from?

[JOHNGEAR]

hi, yes i do now have a wide band(duel) from F.A.S.T.
but have not welded new bungs yet and do not fully understand just how to make these combatible with efilive.
using stock injectors(was poppet style now true injectors) i think 19#ers

[joecar]

Oh, what 5.7ute said, you should see switching activity from the EQ1.00 cells in B3647.

I'm wondering if your injectors are delivering more fuel than you're expecting...?

You have 19 lb/hr injectors rated at 43.5 psi...?

If so, then those flow 22 lb/he at 58 psi... this is 2.76 g/s, your IFR table says 2.91 g/s... that's a 5% difference, is this what you calculated Mick...?

[joecar]

Your IFR table is 5% above, which will make the injectors deliver 5% below...

I think your VE table may be not correct (have you make sure to disable semi open/closed loop during tuning...?).

I think maybe your NBO2's are not responding correctly.

[JOHNGEAR]

I do remember talking about correcting the VE before with you but have not done this as of yet(wideband issue) but if my injector set-up is incorrect then wont the auto VE become harder to complete?

[joecar]

If the injector table is all incorrect by the same factor, then after doing AutoVE the VE table will simply be all out by the same factor and you will still get BEN's converging to 1.00 (actual AFR equals commanded AFR).

If your VE is out by unknown/uncorrected then semi open loop (SOL) trimming may not be able to happen since the both commanded and actual AFR's both have to be at stoich...

i.e. the actual AFR is far enough away from the commanded AFR that the PCM can't trim it... so your new NBO2 sensors show the tendency you see in your log.

[5.7ute]

i.e. the actual AFR is far enough away from the commanded AFR that the PCM can't trim it... so your new NBO2 sensors show the tendency you see in your log.

Thats one of the thoughts that went through my head, but you would think though that the STFT would max out. Unless of course the PCM sees the high voltage of the sensor & thinks it is not ready.

[JOHNGEAR]

am i on the correct path here?