Fully Built 3sgte Driveability issues

Hey everyone, last year I bought a broken SW20 MR2 that was very well built. The car ran but I was not able to drive it at all before buying it. I rebuilt the engine over winter and finally got it fired up for the first time early this week. I tried taking it out for a drive today but the engine was cutting out a bit and stalling. I did some logging while doing all of this and was hoping if someone can check it out and give me some help. The tune currently on the car made just under 700hp on 31.5 psi. I would like to be able to drive it though and get several different maps set up for it. In the drive folder will be a some logs from the first start and first time driving and some trigger scopes from the first time starting. It's running on a Link G4x Fury.

https://drive.google.com/drive/folders/1XtYC-29QyOnGQcq_E84sd8MBQIfL4-LA?usp=sharing

Hi Kyle,

Your logs of the first start and first drive are actually the tune files, and your trigger logs don't seem to have any cranking recorded.

To save the logs it's under the logging tab, not the file tab

Sorry about that. I'm new to the software. I went into my log folder and uploaded some of those files into the google drive. I included some earlier logs from just cranking before it would fire as well. I drained the fuel tank out of the car last night and will get some fresh E-85 for it and do some more logging and try to get some more driving in.

The current trigger settings will cause it to mis-sync and not start for some start attempts. Change the trigger 1 sync tooth to 5 should give reliable sync. If it no longer starts after changing that setting then add or subtract 360 from your existing trigger offset to correct its phase.

There is only one single log showing 1 min of idling, so not much to go on for diagnosing drivability, but the main issue in that log is it is very lean. The CLL is topped out adding 15% extra fuel and the lambda is still very lean at 1.20. Either reducing the injector flow rate setting or increasing the engine capacity setting until the lambda sits somewhere closer to target would be a quick way to add more fuel in the meantime until it can be diagnosed or tuned correctly.

I had a chance to get fresh fuel in it last night and do a little bit of logging. I tried to get some trigger scopes as well. I uploaded the new logs in the google drive. I will make those adjustments to the trigger sync tooth and see if that helps it to start more regularly. I think a big part of the problem is my fuel pumps seem to be going out. I was getting a fuel pressure low issue sporadically on my dash. Both pumps were working but they are at least 6 years old I believe. I appreciate the help and I will get some new pumps and filters on it here soon and see what happens from there.

Your fuel pressure was well controlled in the first half of your log and your tune is setup to automatically compensate for fuel pressure, so although you do have a fuel supply issue to investigate, your lean issue is not due to the low fuel pressure.

I appreciate all the help! I will make those changes you mentioned earlier over the weekend and see how the car acts.

Changing the sync tooth to 5 and my offset now to -266 did the trick for starting much easier. I added some displacement and it brought the lambda closer to target but still lean. I will decrease the injector flow rate some and see where that gets me next. I have new pumps, filters and a service kit for my FPR ordered so hopefully that will fix the supply issue. I will add the latest log in the drive file if anyone is curious.