hello, and thank you, everyone.
I have a 03 Gt and it had run great for the last two years that I have had it. it ran like a new car, with no check engine light's on.
today I had the oil changed at the popular oil changing spot, and when it was done it was running shaky. so I thought it would stop so I went down the street to get a bit to eat.
then I drove one mile away and in the middle of the street in the left turn lane the car just turned off.
I pushed it to a safe spot and proceed to check in the engine bay for something maybe disconnected but I didn't see anything. I called the oil changing place and they sent out a young man with a fancy OBDII reader I asked he ran the test and came up with nothing.
I asked, with that reader test for..
Battery?
fuel pump?
fuses?
he said yes and he had no idea why the car would not turn on
what the car does when you turn the key is, the engine cranks the speedo and the tachometer will peg from 7 to 3 (if looking at a clock) and not start
I then called the roadside service people and the battery guy checked it and said the voltage is 12.59V & amps read 40 CCA and is rated for 510 CCA. so he connected a jump box and I turned the key and the same thing it didn't start
so I had it towed to my home and I'm looking for help I hoping someone here may have the answers to my problem

thank you in advance,

rudedog03GT
Los Angeles, Ca.