2014 Mustang 5.0

[armyguy202000]

ok fyi I my air fuel is not even dropping below 20.0 until 3500 rpm then only to about 19.3 ill post what you ask for in a bit

[armyguy202000]

no still the same JLT boss was only addition

[armyguy202000]

Ok so here is the previous tune which I was running before the Boss intake. I ran the data log until the car died.

[DiabloMatt]

man I can fix this but are you SURE there is no vacuum leaks? the fuel trims are ADDING 65%!!!! like I said. I can fix but just want to make sure before proceeding

[armyguy202000]

ill double check but only had to disconnect one

[armyguy202000]

I checked I don't have any different sucking sounds but kind of hard to tell with the JLT CAI and throttle body spacer. So I took off a line and blew smoke (lots) and nothing so unless its leaking from the head (I couldn't feel anything and no check engine lite is on) IDK.

[DiabloMatt]

here go... this is 65 across the board... shooting in the dark at this point but we will conquer !!! lol
if it will idle and warm up try some part throttle driving and if its ok get me like a 3rd gear WOT...

[armyguy202000]

ok part throttle driving?

[armyguy202000]

IDK man so this seems to be a bit better but the idle will not go down once I press on the gas. and I have a check engine lite now. I am going to get a bottle of carb cleaner and hit around where the manifold and block meet.

[DiabloMatt]

if it seems like its ok, yes.

basically need a log covering all driving conditions so I can ajust areas other than just idle

[DiabloMatt]

please do....I has to be getting air from somewhere. the throttle blade is closing down to 4% but the idle is hanging way high. something is not right...

[armyguy202000]

Matt-
So after switching the gaskets off the stock manifold I still had the same leak in the same spot. I took the boss intake back off and took the fuel rail off and one of the O-rings from the fuel injectors had come off. Got new O-rings put it back on and no leak. I am running the first tune you sent me (r2c.frg) and it is doing good. The only issue I am having is if I come to a sudden stop to where the RPM's drop fast it will die. If you could provide the adjustment to account for this I think ill be in business. Thanks

[DiabloMatt]

good to hear

get me an idle log, driving around and possibly a WOT and sent it to me. i'll finish it up

[armyguy202000]

Matt-
Sorry it took so long I haven't been home for awhile. Here is the log I took yesterday from idle through 3rd at WOT. Again the major issue is the car will die when it is cold or if I come to a quick stop and the RPM drop to fast. Thanks

[DiabloMatt]

ill get you some adjustments.... you DO have 93 octane in this right? im asking as the knock sensors seemed pissed pulling some timing.


edit.... forgot this was 91