CAN'T CLEAR COMPUTER CODES 499 AND 452 FROM 2003 BUICK RENDEZVOUS

SOURCE: Replace fuel pump on 2003 Buick Rendzvous

What parts are needed to replace the fuel pump on a 2003 buick rendzvous?

SOURCE: O2 sensors on 2002 buick rendezvous

hi im wes the o2 sensor is always in the exaust newer buicks have one before the converter (sometimes in the exaust manifold) one after the converter if it has duall exaust it could have four
left bank sensor one is before the converter on drivers side bank two sensor 2 would be passanger side after the converter does this help?

SOURCE: Buick Rendezvous 2002 need codes?

the BCM needs to be programmed to operate the computer. a GM techII is now required to calibrate BCM to airbag, stereo, keyless entry, and control pcm data. This is required to make it all work. a gm service should have it done within an hour or less just call and ask them how much it would be to program new BCM. it might cost @$75 to $125 but it is needed, to allow the BCM to work properly.

Testimonial: "ok...i bought the bcm on line (used)...but the gays in the dealer says i have to buy a new one..because the used cannot be to reflashed...or recoded."

SOURCE: Where is the fuel pump shut off on a 2002 Buick

Your does not have a fuel cut off, check fuse and relay, more then likely fuel pump or anti-theft.

SOURCE: how to replace a 2002 buick rendezvous o2 sensor

You can see, but not reach the before cat sensor from underneath. To get it out, I did it from the top. Remove the 3 ignition coils (2 plug wires each) and ignition control module (this is the part that the coils plug into). You'll have to follow the O2 sensor wire to find it (you'll be working blind). Use the special deep well socket to remove it. There's not a lot of room to turn the wrench and it's difficult to get leverage to turn the sensor out. I put a 3' length of conduit over the handle of my 3/8" ratchet, as there wasn't enough room to get a breaker bar in there. Once you get the old one out it should be smooth sailing. Make sure you follow the directions and use anti-seize. After you get it installed you'll have to clear the code to get the check engine light to turn off. I went to my friendly Advance Auto store and used their scan tool, but I've read that you can also clear it by disconnecting the battery for 5 minutes and turning your headlight switch on.