my check engine light flashes and battery light is on and runs good then when i hit the gas check engine light goes solid and battery light goes off and the car wont rev out it stumbles when ya give it gas

 

Check the alternator belt. Make sure it's tight.


Try resetting the ECU by removing fuse #6 (15 amp) from the fuse box under the hood. Wait 30 seconds before putting it back in.

If the MIL (check engine light) comes back on, or the car goes back into limp mode, have it scanned and post the codes here.

 

tried it didnt work and i just put new computer in and got it flashed to my key but my snap on scanner says its having communication problem no codes

 

Do you have a DMM that you can test connections with?

I recommend buying a Helm's manual and use the diagrams to do a bit of troubleshooting.

 

^^ Yeah, I doubt that anybody is gonna walk ya thru it as there are literally 12-15 pages of diagnostics procedures of the DLC circuit in the service manual.

EDIT: On second thought, check to make sure everything is plugged in and making good connections at the ECM/PCM first.

 

every thing is plugged in the thing is i got a new computer and got it flased to my key before they did that my scanner would read the computer after they did that every thing started acting crazy now my scanner wont read nothing i figured myaybe thy set off some type of alarm to set it into limp mode when they flashed it ya think thats possible?