2018 Mustang Vortech Supercharged

[Scott CAPA]

Hey guys, got a VERY small issue im chasing and im hoping someone may be able to help out.

I have a 2018 Mustang with JT Vortech kit fitted, 1000cc injectors, full exhaust.. Can performs / drives well makes good power.. However have a very small issue with cold start (ECT below 25 deg Celcius) I cant seem to get enough mixture in the inital start up and it gets a lean miss until the 02s fire up and grabs it..

Ive tried:-

Inj Adj low slope slightly
MAF A/F vs Period (trims LT / ST are no more then +5.0-6.0%) in this area of start up
DI / PI blending Cold & Start up
Fuel Base Cold (pulling down to 0.96 Labda)

Once it gets to 30+C its fine..

Any thoughts.. Just chasing the 1% to make it spot on really.

Happy to PM / email file to anyone that can help

20-07-15 11-22-12.hpl

Cheers.

[Jcbryantllc]

I'm not saying this is correct but isn't it on first start up where the speed density calculations make adjustment for fueling? If so have you calibrated Quadratic/ Offset and Slope?

[STAGEUP]

Check your distance tables.

[Jcbryantllc]

what do you mean by check your distance tables? are you thinking the cams could be allowing to much over lap? I'm just trying to learn. not trying to bug any one. thanks