Stalls at Idle

you are going to want to do a fuel pressure test next. sounds like you are losing pressure. especially on a cold start when the vehicle will be requiring more fuel until it warms up. you can get a fuel pressure test kit online or a local auto parts store. Connect it to the fuel rail where the injectors are located and run the vehicle. Let us know what you find.

It won't run long enough to read could it be something with the asd?

it will do a fuel pressure test. put a gauge on it and there will be a 2 second prime first and you will get a reading cranking it over as well.

I really don't think it is a fuel delivery problem bc what time it does run it will rev n theres no miss or hesitation its like im losing fire bc the fuel pump is running the whole time

Plus it's not throwing any codes

is it flooding out when it dies? what do the plugs look like? wet, black with carbon? and if u can scan it, u have communication with the ecm. can you look at the live data stream?

No no flooding plugs are all good burning right just doesn't make sense ecm or ignition switch maybe?

Read codes again last night it threw a p1686 tried to erase it but wouldn't erase so i pulled the terminals this morning it threw a p1600 my keys do not have chips so i don't understand why it threw the p1686

Well the P1686 is a code for the SKIM (Sentry Key Immobilizer Module) Which can cause this issue you're having. The P1600 is no Bus or communication code. So you need to dig into why the ECM seems to be shutting the vehicle down. It may be a security system issue. We can try to find some wiring diagrams to check the ECM's power and grounds. And also the BUS data circuits. I'm not sure if you have access to a lab scope to see if there are signals on these circuits or not. but checking powers and ground from the ECM is possible with a multi meter, doing voltage drops tests with the circuits hot.

Its bouncing back n forth between the p1600 n the p1686 it shows one one time n the other another time n neither will erase n one shows as pending when it shows but i don't remember which is which

My keys don't have the chips in them so y does the skim code come up

The key does have a chip but it is made inside of the key so you cant see it. Is the security light flashing?

Best, Ken