I have a 97 Mitusbishi Galant 4dr. I purchased a

Sometimes you can clear cars computer by taking off battery cable,maybe it will work for you, leave battery cable off about 10 mins. and try that. Just a fast thought, Hope it works for you. Billy Wyatt

Have your battery checked. This can be done for free at most auto parts stores like Autozone or O'reilly's.

10w30

You will most likely have to go to the dealer as these are not universal codes. These are security codes. I would suggest going to your local dealer or take the serial number from the back of the radio and calling up mitsubishi.
Hope i could help.

Adam

Call dealer service dept. Take cell phone in car with you when you call for step by step info. and to ask questions if you need too.

Call the dealer and ask if they can help you with the code and procedures. Your owner's manual should have the procedure listed in it but the code should have been in the papers that came with your car when it was new. Again the dealer is your best bet. They will need your vehicle VIN and maybe even the radio serial number.

I read on another site that if you get locked out, your radio will show OFF. All you need to do is keep your radio on for an hour. It will reset itself. Your car doe not need to be on. Not sure if this works, but it is worth a try and may save you $80!!

http://www.radio-code.com/

GETTING THE RADIO SERIAL NUMBER: <BR>
don't know an easy way to get the radio serial number, find a radio install savy person and ask them to help you. My dealership said they would do it for me and charge me for 30-60 mins worth of labor.. (At $75/hour) <BR> <BR>
RADIO SAYS "OFF" OR "LOCK": <BR>
Leave the "off" display on for 1 hour uninterupted, then it will automatically reset back to UNLOCK CODE.
<BR> When you turn it back on again after that time has passed it will ask for "code". <BR> <BR>
RADIO SAYS "UNLOCK CODE:" <BR>
Call your local MItsubishi dealership and ask for the service department.
<BR>They have a computer program where they punch in the serial number from your radio (you have to supply the number) and it will tell them the UNLOCK CODE for your radio. My dealership offered to give it to me free over the phone, if I knew my radio serial number. Enter the code using the buttons on your radio. And write the code down, this will show up everytime your radio looses connection to its power source - the car battery.

sounds to me you need to lower the idle speed