New To Mustangs, Help Needed

[GTpowerwithin]

Hey you all, new to the mustangs and this forum.. I used to be into boosting Hondas, but u can only get so far doing so.. So I've Always have wanted one and now I got one and im in love, it's a 97' GT automatic, with new gears 373 (idk if that's right correct me if in wrong,rebuilt tranny, cold air, no cat, and flow master exhaust.. It has a SCT tuning software and I need to learn more about that..

But it keeps dieing when I put it into reverse or drive, maybe it's in the tune? Or what else could this possibly be.. And again; I'm new to this so sorry if I put the wrong thing down.. Thanks in advance for the help!!

 

[GTpowerwithin]

And also how high is the oil pressure suppose to be? It's inbetween the "M" on normal on the gauge.. Is that ok? And it smokes when u punch it but it stops

 

[Sherwin]

Not that I'm much of a Guru, but I have a '96 GT. My oil pressure is always between the M and A, usually siding more towards the A... Mine also smokes a little. Partly due to also having no converters, and the P/O changed the oil to a light synthetic which from past experiences I know that the 4.6L will blow smoke with some oils and not with others. I haven't gotten time to change it back to a different oil yet. How many miles on your car?

Not sure about the stalling issue. I can't see it being Tuner related. Has it thrown any DTC's? Hopefully someone more knowledgable than me can chime in shortly...

 

[GTpowerwithin]

Ya it threw a DTC and it was P1270 something about the rev limiter has been reached...

 

[40oz]

How many miles are on the car? I'd suggest changing the spark plugs, oil, and air, fuel, & oil filters regardless given the age of the vehicle. The PO isn't going to do it prior to a sale.
The reason the word "NORMAL" is written on the gauge is because the needle is normally within that range .