Thread: Problems and I need help.

My brother has a 2000 Bonneville SSEI and it has 144,000miles on it. I know thats prolly half the problems. But here we go PLEASE HELP ME OUT. It has a P0128 code.(coolant temp below thermostat Regulation Temp. We put a thermostat and Temp sensor on. We think that took care of that. It also has a p0131 o2 sensor circuit low volts(bank 1 snesor1)code, P0137 02 sensor circuit low volts (bank1 sensor2) and a P0140 o2 sensor CKT no activity (bank1 sensor2). The cat is hollowed out on the car. We are wondering if they make o2 sensor delets. If so where can we get some and how much are they? Also the supercharger dose not wine anymore and dose not feel like it pulls like it did i figure that is just due to the miles but he said today after he drove it after I cleared the codes that it wined and pulled like hell. Also the it just started today but now it likes to die on him. He said its random sometimes and he said it was sitting at his house running for like 10 minutes just fine then he hit the brake and it died. So can anyone please help us out.

Will the o2 sensor burn out again pretty quick beings the cat is hollowed out, and how many o2's are on that car? Thanks for your input tho that is very helpful.

I also forgot that the car dose not want move when it is supposed to down shift. THe RPMs stay the same and dosent accelerate. I know that is usually the Cat but its supposedly hollowed out. See we took it to a mechanic and he said he hollowed it. Is there a way to check for that to see if it is or not other than pulling it down.

Where can i get a 02 sensor delet? (for the rear one)

We did just that and we took off the resinator and we had to hollow the cat out due to the fact that the mechanic lied to me about them doing it. But after all that guess what the same problem. Them i had a great idea check the Fuel filter and guess what. It was the orignal one 144thousand on it. Changed it problem fixed and the stalling out problem a loose battery cable. All good to go now. It still dose not wine when you get on it but it halls like a 3800 should. Any thougths on the super charged not wining or pulling like it should.

Please someone help again. My bro talked to some guy at the GM dealer and he said that the supercharger problem is easy just take the nosecone off and replace something in it. He is not for sure what replace the Bearings or the Cuplers. Can some on help us out and how hard is it to do either or. THanks alot

IS that the most common thing on those to not make boost. The gauge reads it is makeing boost but you can tell it dosent caz even with the belt off it reads its making boost

Ok so the map sensor can make it not make boost or it just reads the boost

What would cause the super charger to not wine or make boost really

where are those located

Now is their a possibility that the canister it self could be bad