Sputtering problems

Aaron88 · Post by **Aaron88** » Thu Jul 03, 2008 7:17 pm

I'm having a weird and I mean a weird problem lol. This problem just started almost 3 weeks ago with the car and only does it when it's between a half and a quarter of a tank of fuel it starts to sputter really bad and acts like it wants to cut off.The check engine light also comes on when this happens. When the car is filled up with fuel it does just fine and check engine light goes off. Anybody know what might be the problem?

imidazol97 · Post by **imidazol97** » Thu Jul 03, 2008 11:31 pm

Aaron88 wrote:I'm having a weird and I mean a weird problem lol. This problem just started almost 3 weeks ago with the car and only does it when it's between a half and a quarter of a tank of fuel it starts to sputter really bad and acts like it wants to cut off.The check engine light also comes on when this happens. When the car is filled up with fuel it does just fine and check engine light goes off. Anybody know what might be the problem?

My first guess would be the fuel filter and then the fuel pump may be weak.

Aaron88 · Post by **Aaron88** » Fri Jul 04, 2008 12:03 am

I don't think it's the fuel pump. The fuel pump was replaced a few ago when my grandfather owned it. I will be sure to check the filter.

Aaron88 · Post by **Aaron88** » Fri Jul 04, 2008 2:34 am

Guess what guys? I went to move the Bonneville just 2 mins ago back in the driveway and at almost a full tank she was doing the sputtering. I cut the car off and fired it back up again. It ran for a min back fired then cut off again. I fire it back up again and this time with my foot on the throttle and it blows some kind of crap out the exhaust pipe. After that it did fine so Idk. I still need to check the fuel filter. Oh and yea no check engine light came on this time.

Post by **Jrs3800** » Fri Jul 04, 2008 1:35 pm

Do you have any way to have the codes Pulled?

Aaron88 · Post by **Aaron88** » Fri Jul 04, 2008 3:31 pm

Yes I do have a code reader. Where is the plug you hook it into located at on the car?

Post by **Jrs3800** » Fri Jul 04, 2008 5:09 pm

Look under the area of the steering column....

But is the code reader capable of reading the 94-95 GM Cars? These 2 years have a funky computer... And some tools will not read it... Also even tho the car has an OBD2 connector, it uses OBD1 protocol...

I almost think you may get a Code P0361 or a P1361 Depending on the Code Reader used

Aaron88 · Post by **Aaron88** » Sat Jul 05, 2008 12:21 am

What do those codes mean?

Post by **harofreak00** » Wed Jul 09, 2008 12:28 pm

Aaron88 wrote:What do those codes mean?

http://www.pontiacbonnevilleclub.com/fo ... =51&t=1638

P1350/P1361- Ignition Control Circuit

Post by **SSEi95** » Wed Jul 09, 2008 12:38 pm

Aaron88 wrote: I cut the car off and fired it back up again. It ran for a min back fired then cut off again. I fire it back up again and this time with my foot on the throttle and it blows some kind of crap out the exhaust pipe.

Ny '95 did things exactly like that. The stuff coming out of the back was internals from my Cat converter (cat clogging up th eexhaust). You may be able to test this. Place a larger piece of cardboard or something right behind the exhast tips, and give it a few revs for a bit (not redlining, just maybe 2k or so). If it is the cat, you may, but not always, get some honeycomb shaped debis flying out the tail pipes. Might be worht a try to, since it is free and easy to do.

Post by **harofreak00** » Wed Jul 09, 2008 12:41 pm

Another test is to kick or pound on the cat under the car. If it rattles, its junk.

Aaron88 · Post by **Aaron88** » Wed Jul 09, 2008 7:31 pm

I do hear some type of rattle on my exhaust system everytime I start it and when it idles. So that's probably the cat right?

Post by **SSEi95** » Wed Jul 09, 2008 7:39 pm

I'd still get underneath and bang on the cat directly, or do the trick I mentioned above. Loose heat shields and stuff can sound the same, but not actually be anything to worry about mechanically.

Post by **Bugsi** » Wed Jul 09, 2008 9:08 pm

Ditto on the cat. Had something very similar happen on my wife's `01 Grand Prix GT. It was the cat.
Let the cat out!
(Perfect excuse to put a Magnaflow cat on there now!)
-Mark

Aaron88 · Post by **Aaron88** » Thu Jul 10, 2008 3:37 am

I think the car is gonna be needing a new exhaust system soon anyway. That one is still original and is now starting to rust bad.

chopperdave · Post by **chopperdave** » Sun Jul 13, 2008 8:07 am

I'll tell ya one thing first hand and that is CHECK THE CAT NOW The reason i urge you so strongly is that my carpet literly began to burn because of a clogged one and that is scary. Dave.

Aaron88 · Post by **Aaron88** » Sun Jul 13, 2008 11:26 am

I checked out the cat. The cat appears to be fine and not clogged. The rattle I'm hearing is a loose heat shield.

Post by **harofreak00** » Sun Jul 13, 2008 1:39 pm

Your car doesn not need a new exhaust system. They are stainless steel from the factory. What you are seeing is surface rust.

Aaron88 · Post by **Aaron88** » Sun Jul 13, 2008 7:06 pm

Are the mufflers stainless steel too?

Post by **harofreak00** » Mon Jul 14, 2008 12:03 am

Yes I believe so.

PontiacBonnevilleClub.com

PontiacBonnevilleClub.com

Sputtering problems

Sputtering problems

Re: Sputtering problems

Re: Sputtering problems

Re: Sputtering problems

Re: Sputtering problems

Re: Sputtering problems

Re: Sputtering problems

Re: Sputtering problems

Re: Sputtering problems

Re: Sputtering problems

Re: Sputtering problems

Re: Sputtering problems

Re: Sputtering problems

Re: Sputtering problems

Re: Sputtering problems

Re: Sputtering problems

Re: Sputtering problems

Re: Sputtering problems

Re: Sputtering problems

Re: Sputtering problems