Search:

Thank you for the info. I am hopefully going to get to the tuning this week and might chime in a few more questions if I encounter any. Hopefully everything goes smoothly.

Current tune is attached below.

It is a tune currently for 93/flex that only advances timing 5 degrees. Running no knock and perfect oar.

I am looking to now make a dedicated tune just for...

I've got a 2020 3.5 Ecoboost I recently converted to Flex/E85 with all the supporting modifications. I got a very conservative timing advance for the flex (5 degrees) and was about to make a...

I just realized that I can't PM a file. See attached:

144973

File sent through PM

Since the issue, I receive a response saying they “forwarded me to engineering with no anticipated wait time”. I’ve been pretty much forgotten at this point.

I have a 2020 F150 with a 3.5 eco-boost. I have recently bought HP hardware and software to properly tune my vehicle. I?ve converted over to E85 and enabled the flex fuel option with HP software....

So I’ve had some of the coldest days lately where I’m at and even though the truck is starting better with the timing, I’m still having a very rough 5 to 10 second start. I was doing some research...

So I have been messing with MANY tables and variations with the cold starts. I started analyzing how it starts so easy and bogs down afterwards and it seems that I have figured it out (or at least...

I follow you but my goal is to start working on a dedicated E85 tune after I get it stabilized. This tune works for a basic flex or 91/93 mix. I want to more forward with just an E85 tune, but I’m...

I’m running across a few questions. I’m trying to figure out the background to try to get this more solid of a solution for cold starting with ethanol. I’m trying to research it but got a few...

Sounds good, I appreciate all the help. I’m going to see what the file looks like after I get cable and decide which route I want to go. I’ll probably just stick with HP for it since I got the...

Some years you have to change it in idle and rpm limit. Check both ecu and tcm.

Yeah, I was mistaken…I got the adapter cable. The bike came with short clamp ons and I took them off and used the hollowed out stock ones w/o baffles. I think it looks better on the bike. I’d like to...

I’ve got the MPVI3. I ordered the pro link to be able to read/write the ecu but it hasn’t came in yet. I’m down around Savannah, GA. So it looks like that kit has two sensors (one for each bank) and...

I follow you. So I’d have to get an O2 bunk welded on the exhaust and capped when not using it for testing purposes. Is there a stand alone kit or one that could read from the hp software? What would...

I appreciate the reply. I?ve got the data cable coming in the mail. As of right now I only got a free flowing exhaust. I?d like to get the intake for a little bit more performance, but then I?d have...

I?m slowly getting it under control. I increased the flex fuel cold start and it did increase my fuel/air ratio but only slightly because it is all percent based on ethanol content, so it is not the...

I do appreciate the advice. This is the first vehicle I’ve tuned with HP so I’m still learning as I go. After I get the fine adjustments with this starting, I’ll be saving this tune as a 93/flex...

I’d like to keep the flex fuel if possible. Unfortunately there is only one E85 station around me, it isn’t the most convenient, and it’s also decently sketchy so having the buffer for if percentages...

I think I might have to send a trouble ticket into HP tuners. I tried adjusting the 25% up on the flex fuel coldstart chart but it didn’t do anything until I made it on the regular coldstart chart....

I went ahead and copied that chart to my cold start fuel decay. That seems to have made it quite a bit smoother although between 5 to 10 seconds, I still do have a very slight stumble but nothing...

I’m assuming that with the 25% being added to all temperatures under 100 as the baseline fuel addition to cold start open loop?

They might be 100% true with the ecoboost. I just tried starting mine again and it had a clean start but stubbled after a few seconds for about 2-3 additional seconds. I need to figure out what is...

When you talked about the lost fuel, I ended up changing all my cold start tables back to stock and just added 25% more fueling to all the lost fuel charts. I started with just the main top two...