New to me 2014 Chevy Cruze 1.4T, need advice on where to start

[andysc3]

Hello, Just picked up a 2014 Cruze to be my daily driver. I can never really leave anything as stock. Already ordered the ZZP upgraded aluminum thermostat and coolant outlet as well as their high voltage coil pack and billet wastegate actuator. Not planning on going crazy with it. need it to be reliable. In the future I want to get the zzp intake, ported intake manifold, upgraded PCV setup and e85 kit and run a E40ish mix since the gas here is horrible. But for now, I'm wondering if there is anywhere the stock tune can use some adjustment. I did a log and the LTFT is really close already. I didn't really know what to log on the E78. I saw a thread from a while ago and started working on a tune. could anyone look it over and see if it's a good place to start of offer any advice on changes. it still has whatever gas the dealership put in it so I'm sure it's just the regular stuff. Thanks

[andysc3]

turns out i had 2 available licenses lol. Filled up from a 1/2 tank with 91. loaded up the startup tune. went from a max of 180kpa to 230kpa. Installed the zzp wastegate actuator last night. boost still drops off as the rpms rise. and there is knock retard pulling timing all over. car sounds great and pulls well. might have to invest in the e85 kit a little sooner than expected. Will definitely need at least the green 42lb injectors as the stocks were climbing into the 90%IDC.
Installing the zzp coil pack, new sparkplugs gaped to .028. upgraded thermostat and aluminum coolant outlet tonight.

[joecar]

Install a wideband so you can log lambda to see what actual fueling is doing when not in closed loop.

[andysc3]

yes, it's on my list to get. will have one by the end of the month. I picked up the zzp catless 02 pipe and mid pipe. But getting a p0598 code for the thermostat. it's a brand-new aluminum unit from zzp. sent them an email, just waiting to hear back.

[andysc3]

Took the Cruze on a 3600 mile round trip last month. It did pretty well until we got into the hills of South Dakota. Kept throwing an over boost code, P0234, and was limiting the boost to 2 psi. And this thing is useless without boost. Did average 35mpg. Just finished installing a full exhaust. Catless o2 housing, zzp catless mid pipe and trubendz catback with magnaflow muffler. Sounds so much better. Haven’t ordered the wideband yet but ltft have been +/-3%. Is the maf disabled in the stock tune? Was looking through the tune and the high flow air doesn’t come in until 6k rpm or so. Will have to look at it again to verify.

[andysc3]

Well driving home from work speed limit goes from 50 to 70. I start to accelerate then car starts to shake and tons of white smoke out of the exhaust. Of course I wasn’t logging but my portable Bluetooth obd reader is showing a p0302 and p0300. Going to start pulling the valve cover on sunday and take a look