2002 Buick Rendezvous Engine acceleration problem?

2002 BUICK RENDEZVOUS
3.4L • 6 CYL • AWD • AUTOMATIC
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JOSHAUHOOVER304
  • MEMBER
  • 1 POST
vehicle bucks and jerks while trying to accelerate car md scanner gives me codes p0300,p1635, p0131, have changed spark plugs , coil packs , tps , map maf , fuel pressure regulator , fuel filter, egr solenoid, none of which has fixed the problem. the car idles fine, but does have a slight miss,
Feb 7, 2015 at 5:12 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
check for a vacuum leak then due to the misfire code these are very hard to diagnose and the others may be coming on due to the misfire.
Feb 8, 2015 at 12:39 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,540 POSTS
Misfire to misfire very good! With these codes it looks like the PCM has gone bad or you have a shorted oxygen sensor for bank one sensor one.

P0300 - Random/Multiple Cylinder Misfire Detected:

P1635 - 5 Volt Reference Circuit: This code indicates a problem with the 5-volt reference circuit

P0131 - O2 Sensor Circuit Low Voltage (Bank 1, Sensor 1)

I would swap out the oxygen sensor and then clear the codes to see what happens. Here is the location of the sensor so you get the right one. Check out the images (below). Please let us know what happens.
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Jul 13, 2024 at 9:04 AM
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