Hey guys, I've managed to get some sort of log of it happening, though it's not very long or easy to get a lot of info as it just detonates as soon it goes lean and I back off. I've attached the tune further down this reply. It's not finished because we've been running into this lean issue for nearl...

Hey Antus,

I think I've attached a Word document with 2 screenshots from logs taken when running fine vs running lean.
These were with exactly the same tune...

Thanks!

Hey Quip4it, Yeah it's a Raceworks 340LPH, not a 320, not sure how I fudged that... I've swapped the fuel pressure regulator out already and that didn't change anything, cause I didn't think they're something that could really go wrong from a bit of heat, they just sort of work properly or they don'...

Hey Dylan, The coolant and intake temps don't really change much between the time it's running fine and the time it starts running lean. I can be driving and give it a 3rd-4th pull and it shows low 11's AFR, then coast for a minute or so and give it another big pull, then as it comes onto boost it'l...

Hey guys, Thanks for the responses! Kojab - I'm just using the plastic gauze filter the Raceworks fuel pump came with, so shouldn't be restricted there. I've swapped the pump a couple of times too and the filter that I've pulled out each time has never crushed in on itself. Chuff - I thought there m...

Hey Gareth, That's another thing I didn't try but thought of, I just didn't want to muck around with extending a set of multimeter wires so I can see what it's drawing under load when everything's working properly vs not working properly... I just ran all new wiring and a relay to the fuel pump, jus...

Hey Gareth, The stock fuel pressure regulator and dampener is gone, it's got a cheap Autobarn SAAS rising rate regulator which I've already swapped out for the same and didn't change anything. We're sorta already guessing and realising that the fuel pressure is dropping when it starts running lean, ...

Hey guys, Been having a recurring problem with a tune on a turbocharged 304 vr commodore where it runs perfect under load for about 3 or 4 full throttle pulls, then decides to start running lean for some reason.. So basically I'll hop in and start driving somewhere, about 10 mins later I'll start hi...