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OK i've sorted this. Turns out both the narrowbands AND the wideband are correct. The issue is the narrowband placement in the headers. The o2 bung is not far back enough to get a good mixture of the...

Just wanted to report back I made the swap as according to all instructions in here and everything works great! Thanks for all the help.

Thanks 07GTS, much appreciated.

Sorry, another question. I've got the injectors installed but noticed in my FSCM I have injector data as well as in the ECM - table 6991 (FSCM). The HPTuners note says it's a duplicate of the ECM...

No, same thing. ECM 45524 is 0
But the normal RPM table 13338, unlike the L76 you found in the repository, is 0 until 1152

My L77 (2014 commodore) has injector off time to 0 but RPM is zero until 1152 when it goes from 4.6 up to 92.9 @ 4096.

Thanks, you are right of course. 10ms/ .01 seconds :)

So I should swap the WB for the NB sensor 1? Annoyingly I dont think the NB will reach.
Forgive my ignorance, but if I didnt say anything about the wideband, do the NB o2s look like they are working...

Sorry you're right, 0.1s 10ms not 1 sec. I am using a laptop.

I'll try a different ground, but I'm pretty confident in my wiring. As I said it is bang on in my other car.

Fuel trim polling rate set to 1 second (10ms) which is the fastest ive got (when I right click the channel). MPVI3 and scanner v5.

You may kindly note I didnt say it was an opinion, but your theory, which I appreciate. I was restating for my own clarity.

Following on with your theory, is there any reason why the WB seems...

They are actually removing fuel at that low RPM as per log.
So your theory is the wideband is wrong and/or innacurate?

Hi friends
Very much a newby tuner but trying to learn, but I seem to have a problem - when running in CL, my wideband reads really lean at low RPMs.

Car is a 2014 VF commodore (holden), with the...

Great! I have been using all 3 of your programmes, very thankful to you.

Super helpful, thanks!

So you're saying that even in stop start traffic, assuming all the usuals are disabled and the car is sufficiently warm (DFCO, COT, desoot etc), the logs could be used for...

Been doing some great vve and maf in CL using cringers formulas so far so good, I'm definitely noticing improved drive ability and economy!
My car was dyno tuned so I don't think WOT will need much...

Thanks! In FPCM everything is set to 400kpa/58psi

You are right of course I could probably find the right balance, but it fixed my issue. Check the scanner OP and see what fuelling mode you are in.

Engine diagnostics -> misfore -> idle (not moving) table.

Misfire table is not maxed out in the tunes you attached.

I had a similar issue to you at idle - what I found was the car was going into Open Loop for a short time, then back to CL at idle with misfire counts increasing. Maxing out misfire counting at idle...

Appreciate the advice!

Where did you land on this Cringer? Im running at 75% duty cycle WOT on petrol but am flex enabled so likely going to swap to these. I'm running a 2014 VF Commodore (L77) and my stock rail pressure...

Thanks Cringer for all this, newbie and trying to learn. Just wanted to say appreciate it. I've watched the vids and slowly but surely getting there :)

Thank you!