EFIDynoTuning Forum

ID shows deltap multiplier as 1.0 for every function for return style fuel systems in their spreadsheet, that's why I had it that way.

Just checked and still showing that, last update to the 1050 spread sheet shows 4/25/25

Thanks for the response!

I have no idea how to fix the deltap, should I just be putting in the stock multiplier values?

So you're thinking it's mostly MAF transfer down there? or a LWFM issue? I'll have to get out and get some logs to take a closer look at it now that manifold volume is in better place

FRPS is still installed, have been told this was a good thing to keep?

When I set up the tune I went of of the ID characterization tables ID has on their site, I just plugged in their info off their spread sheet.

Set up for return fuel, E10 and 50psi base fuel pressure.

decipha,

Thank you for the responses. I appreciate it!!!

deltap was changed in breakpoint, high slope, low slope and offset vs rail pressure. they re all the same as this, and the multiplier is the same 1.0

Pretty sure I went off of ID's data on their site?

I will attach another picture, having issues getting tune into Tunerpro, think it's because of the bank/tune settings on my quarterhose, but I'm unable to change them?

I haven't downloaded tunerpro yet, here is a quick snip of injector values- everything is scaled down and I believe under the limit?

Hey guys,

Looking for some help/info on a lean tip in I'm having on my 03 Cobra. Have the tune decently sorted (I think?) and did rework LWFM table. Been having pretty bad lean tip in issues, car would stumble/buck/pop/ect on the gear shift, and would stumble and go lean just tipping in on the throttle when driving in gear.

Played with manifold volume a bit, first making changes the wrong way, then realizing it needed to be decreased, not increased.

I cut it in half and was instantly better, seems to be good on the 1-2 shift, but when making the 2-3 it shoots a little leaner, then 3-4 even more leaner, ect. I tried reducing it further, but didn't seem like it made meaningful changes.

I've read some different things about how manifold volume changes are described, when changing manifold volume does it adjust the amount of fuel or just the timing of the fuel?

Am I totally missing something else here? I read an old post about injector lag, but I'm running ID1050's so I would think they are of good quality.

Thanks for any help!

Hey guys, new here, not exactly sure of this is the correct place to post this?

Anyway, working on my 03 Cobra and logging Idle Source. I cannot find any values listed anywhere for what the idle sources are.

Currently using BE, but couldn't find anything in my SCT stuff either.

Any help would be awesome!

Thanks!