For SDSU, you are looking at around 4300+ EI for the best chances.
CSU Long Beach and Cal Poly Pomona around a 4000+ especially for Aerospace Engineering.
SJSU’s EI threshold for 2019 was 4150 for Aerospace Engineering.
Cal Poly SLO does not admit by EI but MCA points. Here is the calculator and you need above a 4700 MCA score for any chance.
https://mca.netlify.com/
SLO Engineering admit averages are an SLO GPA of 4.21 and SAT of 1480 for 2018 Freshman.
None of the CSU’s listed are realistic so if you are able to get your SAT up another 200 points maybe some of the CSU’s might be options. Your GPA will still be an issue even if your EI meets the thresholds.
I would look into Mechanical Engineering at the less competitive CSU’s. Here is the CSU impacted major/campus matrix so I would focus on possibly CSU Fullerton, San Francisco State, Sac State, Chico State etc… if you really want to attend a 4 year university.
https://www.calstate.edu/sas/documents/impactedprogramsmatrix.pdf
For the UC’s, they tend to be very GPA focused so having competitive test scores many times will not make up a Low GPA.
Also not having passing grades up to at least Pre-Calc will be an issue especially if you are focusing on Engineering.
Some UC stats for comparison below and 2018 is the most recent data: 2018 Freshman admit rates for UC GPA of 3.00-3.39 capped weighted and not major specific:
UCB: 1%
UCLA: 1%
UCSD: 1%
UCSB: 1%
UCI: 1%
UCD: 3%
UCSC: 12%
UCR: 15%
UCM: 45%
2018 UC capped weighted GPA averages:
UCB: 4.23
UCLA: 4.23
UCSD: 4.16
UCSB: 4.13
UCI: 4.13
UCD: 4.11
UCSC: 3.96
UCR: 3.81
UCM: 3.71
2018 Data:
25th - 75th percentiles for SAT:
UCB: 1360-1540
UCLA: 1340-1540
UCSD: 1300-1520
UCSB: 1270-1500
UCD: 1220-1480
UCI: 1230-1490
UCSC: 1210-1450
UCR: 1130-1380
UCM: 1020-1280
If you really want to attend any of the above schools, 2 years at community college with TAG (Transfer Guarantee) will get you into UCM, UCR, UCSC, UCD and UCI if you meet all the criteria. Also the CSU’s have AAT/AST articulation agreements for the CSU’s. Your HS record will not be a consideration if you are a Junior level transfer to the UC’s and CSU’s. http://admission.universityofcalifornia.edu/transfer/guarantee/index.html
https://www2.calstate.edu/apply/transfer/pages/ccc-associate-degree-for-transfer.aspx