missing, black smoke, engine light.

[Chain]

I can't remember if you can get the code numbers by turning the ignition like 3 or 5 times to get a flashing engine light.
Been trying but no luck.

Just got home late from work, wife says car is acting up. Boy said it was smoking, he can't remember white or black.

I started it and it is missing and is puffing a little black smoke.
I am hoping plug fowl or some sending unite is out.

Any ideas on getting the code or if it is even possible on a 97 GA?

[tenspeed]

There might not be a code to get unless you have the SES light on.

Black smoke usually is from running rich. Go through the basics, check the air filter, pull a plug or two, check for soot in the tailpipe, etc. It might be a clogged injector or a bad coil since it came on suddenly.

[4kQuad]

I'm thinking coil as well. If its like the quad there are 2 coils. So is one goes bad 2 cylinders will be affected. That would cause black smoke. Also look at the cover the plug live under for cracks or dust trail lines. Either would allow for the spark to leak and not make it to the plugs. If it don't sound like its missing all the time on two cylinders, check the cover real good.

If the air filter is good, I would also check the IACV in the TB. They tend to get caked with carbon and can't work right. When you pull it there will be a small rubber O ring that will pull out with the IACV. That will have to go back in to insure on vac-leak.

[Chain]

Thanks, I am going to check it tonight if I get home early enough.
If not tomorrow morning. I may try to dog it to the parts store and hook up the data machine and see if it tells me anything.

But with a mis it mainly tells you you got a mis. LOL
Is there anything to look for with a bad coil pack?

[rixGAphx]

How many miles on this 10-yr old car, and waas the major service done at 90-100k miles (replace plugs, filters, etc.)Originally posted by Chain ....can you get the code numbers by turning the ignition like 3 times to get a flashing engine light?That was the trick for old Chrycos (and Fords, IIRC), pre-'96.

On pre-'94 GA's (and all other GM's), the 'paperclip jumper' is the DIY method.

Everything in the US and Canada, '96 and newer, can ONLY be accessed by an OBD-II code reader, plugged into the port in the cabin.

'94-'95 GA's are screwed, with a system that doesn't work by paperclip OR OBD-II scanner.

But, as Tenspeed said, if the Check Engine Light (CEL) isn't 'on', either flashing or solid, then you prolly don't have any stored codes to go searching for.

Please tell us if the CEL is 'on'?
But with a miss, it mainly tells you that you got a miss. A 'misfire' can be either ignition OR fuel injection, so don't get on a one-track path relative to plugs/coils/boots.

And, if there is a 'misfire', the code will often tell you which cylinder(s). Is there anything to look for with a bad coil pack? I think there are two coils in your ignition module.

If the 'misfire' is identified as Cyl #1 and #3 for example, try swapping the coils.
If the misfire 'moves' to #2 and #4, you pretty much confirm the the coil is at fault.

Good luck,
-Rick

[Chain]

Replaced the plugs and boots. NO luck.

did the OBD-II scanner. it is the manifold Absolute Pressure Sensor.

54 bucks. Thanks for the help guys I hope this fixes it.

Oh and yes the engine light was on steady.

[Chain]

Thanks for all the replys. Looks like my vac line rotted going to the manifold absolute pressure sensor.
New rubber line all is well.

Time to go cruse... :chain: