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Turn the engine off and turn the key to accessory.

At least that's what it said for my Fiesta when the engine was running.

I'm using chrome on Android 11. When I go to edit a post on my phone, it seems the "delete" button covers the entire screen, or it's selected by default or something. When I scroll down to make my...

Ok the mobile site is fully broken @HPTuners, I can't edit a post without deleting it lol!

I haven't logged the full parameters from a fully stick tune, I will do that today and post it as well,...

Never mind, more searching leads me to think it doesn't do what I think it does. I should probably leave it disabled.
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Well that's not a confusing description at all

If it does what I think it might it could be my answer. If by "disabled" it means that something can ignore OP Enrichment mode that could explain it...

Took it for another spin after adjusting the hysteresis, upping the lamdba/second to 1.0, and lowering the target lambda to .800, another WTF log.

It looks like it IS actually starting to lower...

I'm OK with severely reduced boost levels until I get the fuel figured out. I was already creating enough heat to f*** up my flex pipe, I'd rather not turn it back up until I'm sure it's going to get...

OK, I turned boost down and torque up, and went for a very loud test drive.

It logged the fuel source at least, which shows it was trying to enrich a small amount until 4200 where it switched to...

I don't want to keep spamming this thread, but I did find some good news. My massive exhaust leak was just a blown out flex pipe, I was worried it was the manifold or something.

Looks like I may...

Full manual, hence the lack of transmission tables. It's definitely a teeny tiny little turbo, the compressor housing is smaller than your fist lol.

Thanks, I don't know why I didn't look for a guide for logging. I will read that before my next test for sure.

As for the torque limiters, I understand I'm hitting those right now, causing some...

Yeah I did that a couple of posts above, and I've since lowered it further so next time I will try that.

Thanks for the heads up on the sources, I'm a new user so any other hints like that to...

No change at all. And these lean pulls may have caught up to me. Sounds like I have a bad exhaust leak, and the engine is shaking like mad at idle. No CEL, I didn't think to check the diagnostic info...

Thanks Metroplex, I saw those tables but ignored them as I didn't want to mess with cam timing until I get some dyno time. It never occurred to me that they'd prevent me from getting into OP. I...

I did some more searching and thought I had it figured out. My Fuel Enrichment Pedal vs RPM was set at 90 from the factory (except for the spot it was set at 101, to keep it in stoich I figured), but...

Yeah it's definitely quite a learning curve compared to the 90s-EFI of the Megasquirt. Very cool though, as a software developer I'm much more comfortable with the idea of an IPC checking my work 😀
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Hi,

I'm trying to tune up my otherwise stock (for now) 2015 Fiesta SFE. I've tuned my Miata with a Megasquirt, but this is otherwise new to me.

I started out with a combination of this guide...

Hey Catnip, have you traded in your fiesta yet?

I just started messing with mine, following the "HP Tuners for EcoBoost Tuning Guide V1.6" and your thread. I thought I had an idea what I was doing...