COULD YOU TELL ME WHY MY CHECK ENGINE LIGHT FLASHES AND THEN MY CAR STALLS AND WONT START FOR THIRTY MINS

1997 Pontiac Bonneville

Tiny

peewee35

October, 11, 2011 AT 6:15 PM

When I start my car it will run for awhile and then my check engine light will flash rapidly and my car will stall and not start for thirty mins my security light stays on at all times as well

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17 Answers

Tiny

ASEMaster6371

October, 11, 2011 AT 6:34 PM

The light will flash for a missfire but not rapidly. If it is flashing like that, it sounds like a problem with a power or ground to the pcm. I would look first at the battery cables. Clean them completely. Otherwise, you may be looking at a failing pcm.

Roy

Tiny

peewee35

October, 11, 2011 AT 9:26 PM

One of the codes on my 97 pontiac bonneville is multipal cylinder misfire I changed the coil packs plugs and wires what else could be the problem if it keeps dyin and not starting for over 30 mins

Tiny

ASEMaster6371

October, 11, 2011 AT 9:41 PM

It could be a fuel pump seizing up when hot.

I was more concerned on how your check engine light was acting. That does not sound normal at all.

The crank sensor will cause a 300 code as well.

Roy

Tiny

peewee35

October, 11, 2011 AT 10:38 PM

Well it did come up with a 307 or 301 code the last time I checked it how hard would it be to change the crank sensor

Tiny

ASEMaster6371

October, 11, 2011 AT 10:43 PM

There is no 307. 301 is amissfire in number 1 cylinder. It could be a bad plug, wire, coil, a bad injector, low compression or a vacuum leak. A crank sensor will not repair this code.

You need all these items checked.

Roy

Tiny

peewee35

October, 11, 2011 AT 10:48 PM

Ok it was a 301 cuz it said multiple misfire in cylinder 1 I will check theses other things and let you know how it turns out thank you very much for your expert advice. Cuz I was goin nuts tryin to figure this out

Tiny

ASEMaster6371

October, 11, 2011 AT 11:23 PM

Just to let you know, 300 is multiple missfires, 301 is specific to number 1 cylinder

Roy

Tiny

peewee35

October, 11, 2011 AT 11:37 PM

And not to mention there was a duplicate 300 code ill have it testes again and give you the specific codes.I already know about the code for bank 1 o2 sensor

Tiny

ASEMaster6371

October, 11, 2011 AT 11:43 PM

That code will go away when you repair the miss. The sensor is unable to adjust fuel due to the miss fire.

Roy

Tiny

peewee35

October, 11, 2011 AT 11:59 PM

How would I correct the code 300

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