i got a problem with my 02 auto. the "service engine soon" light is always on and the car rattles at a stop from 500-800 rpms. what should i do?

 

go to auto zone ask for the obdi code reader thing plug it in and write down the numbers look it up to see what it is. then take it to a dealer tell them.

 

dont 01 and up cars have their own code reader?

 

you mean where your odomoter is? i thought that was only 99/00 , because i think mine has something like that built in...

 

I've read the codes and info on my odometer on my '01 before, cool feature. But does the car always drop to the 500-800 rpm range when you stop? Mine used to drop every now and then and shake, nothing too bad about that I think. But now since I set the idle at like 950 or something around that with the programmer and don't have a problem with it anymore. http://www.mustangworld.com/ourpics/fcar/dtcodes.htm

 

its weird, it seems to only do it after several minutes of driving. it happens when the engine heats up right in bewteen hot and cold. and i have a programmer too but i cant remember what the initial idle speed was from the beginning. all i know is the needle flexes up and down real rapidly,

 

The cold idle at start up is around 1500. w/o a programer its at 700 to 800
w/ my diablo programer its 1000

my car does that shake thing all the time and i just had it taken to ford they said my car was in perfect shape. i would just check the reading and if they are serious take ur car in it wont hurt.

 

yea my 04 has it in the odometer...and sometimes mine does idle down low but then come back to normal...very rarly

 

yeah the car still drives just fine, i was just a little worried if i'd tune it wrong or somethin

 

Anyone know if the 02's have the diag thingie? That's pretty cool ****.