This is the first time I have had a issue with this , I have a 04 pontiac sunfire 2.2 Eco ..... I drove my car around to a couple places yesterday the last place I stopped shut the car off in a parking lot went it in came back out went to start and it would just crank and would not fire all the way up so I could go home..... So I started checking fuses and relays and everything seems to be ok on that end.... Now after I got done looking at everything went back into the car theft system light was on while I was trying to crank it over and now the odometer went from reading 170xxx miles to 9 miles .... I can't hear the fuel pump kick on nor does the service light stay out that is on too. I did the security relearn and still nothing odometer still at 9 miles ... I don't know if this is caused by a bad pcm or maybe something else but the whole odometer really got me stumped ... I also plugged in my obd II scanner not throwing any codes....
Ok I have a little update found my fuel problem to be a bad fuel pump banged on the tank heard the ffuel pump turn on and started right up now the last things I am concerned is the mileage reset to that 9 miles drove it to advanced auto to have them see if they could check for any codes none being thrown but my odometer now reads 11 miles and the service and air bag lights are on....
could be a messed up BCM since that is where the odo is stored, anything else acting up?
No just with what I mentioned it doesn't make any sense to do it outta the blue this is the first time I have ever had this happen or even really heard of this happening its just one of those irratating things I dunno why the service light and air bag light would stay on along with the fuel pump acting up and the odometer resetting the way that it has.....
Ok so I replaced the bcm today found out that the wiring harness to the fuel pump grounded out which in turned made the bcm act weird the bcm controls the theft system ,air bag control module , the fuel pump and the odometer I.still need to replace the fuel pump cause of the grounded out wire messed that up too as soon as I get a chance I will take a pic of it and put it Kk here so u guys can see it and use as a reference on what to look out for....
ahh GM's infamous wire jobs fail yet again. Glad you got it working
Fireboy153
Brady Fire Co. - Station 150
Long Live The Sunflower! (yea its not so "cool")
Yeah just gotta figure out why the drivers side power door lock is not working if I hit the power door lock either from the drivers Erie or passengers side it won't lock or unlock the drivers side...
