Question about 1994 Pontiac Bonneville

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94 Pontiac bonneville stalls while driving ,stalls when it's started it will rev itself up from 1000 rpm to 2000 rpm then die it will do this from anywhere to five mins to a hour somedays it's fine n others it does all day long check engine light is on I tryed check codes with paper clip cause autozone obd won't read it when I did it the light didn't flash now my airbag light comes on and beeps at every start n my radio won't turn on. I replaced fuel flitter fuel pump relay gasket in manifold fuel pump wire under drivers seat 2 new coils please help nobody can figure it out my check engine light plug is a 16 pin anyway I can check myself with out breaking more stuff like I already did

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  • Jeff Johnson Oct 17, 2013

    How do u know if u have a bad EGR valve? I can't fine a mechanic in my town that has a obd 1 to read check engine light n the paper clip won't work

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  • 409 Answers

You have to jumper the two top right terminals in the ALDL connector to pull up the codes. It should flash a 12 first to tell you that you are talking to the ecu. Check all of your fuses.

Posted on Oct 11, 2013

Testimonial: "I did that the light would not flash I checked all fuse they r fine I don't know y the radio would go out after I did it n the air bag light n a weird buzzing sound when I start it my car has a mind of its own thanks for the solution"

  • Jeff Johnson Oct 11, 2013

    Also the car when it does start n run if I get over 15 mph with no problem the car will drive fine for a while but most the time right around 15 mph when I give it gas the car acts like it's not getting gas n the rpm and mph gauge jumps all the way up n goes back down n up again it's weird it's like it's losing all power when it gets fuel

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Posted on Jan 02, 2017

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SOURCE: 1997 Pontiac Bonneville runs fine for hours, but then charge dies

It sounds like your alternator belt is loose. It will expand as it gets warm from running the engine. That will allow the battery to drain. Tighten or replace the belt.

Posted on Jul 15, 2009

  • 1 Answer

SOURCE: 1995 pontiac bonneville stalls

I just went through lots of troubleshooting and expense on my 1996. Whenever I would lift my foot off the accelerator and was below about 30 mph, the rpm's would starts jumping around and sometimes it would stall. If I gave it a little gas (accelerator), I could sometimes keep it running. It also backfired once in a while. Starts right back up. Also, if I let it idle while in part, it would die after 1-2 minutes.

I ended up finding a hole in the fuel regulator. About a ~$70 part if you get an AC Delco, but very simple to change.

Posted on Dec 24, 2008

  • 160 Answers

SOURCE: OBD 1 and 2 will not communicate with PCM.

a blown fuse will also cause the obd to not communicate

Posted on Nov 12, 2008

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I just went through lots of troubleshooting and expense on my 1996. Whenever I would lift my foot off the accelerator and was below about 30 mph, the rpm's would starts jumping around and sometimes it would stall. If I gave it a little gas (accelerator), I could sometimes keep it running. It also backfired once in a while. Starts right back up. Also, if I let it idle while in part, it would die after 1-2 minutes.

I ended up finding a hole in the fuel regulator. About a ~$70 part if you get an AC Delco, but very simple to change.

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