95 pontiac grand am running rich

[pudman]

i've got a 95 grand am quad 4 engine with 145,000 miles. about 5500 miles ago I replaced plugs, coils, and the coil pack housing and the car was running great. Now it is running horrible, and very rich. A lot of smoke from the exhaust, and a strong smell of gas. I have no way to pull codes beings it's not an OB1 or OB2. It's considered OB1.5. Has no self diagnostic ports, and the plug under the dash is very unique. What can I check? Is there a way to pull codes using the paperclip method and DVOM? I'm pretty inclined with working on cars, but this one is in a world of its own. Any advice?

[jgate]

1995 Grand AM is unique where as it is between OBDI and OBDII, some people actually refer to the 1994-1995 years as OBD1.5 but this term was never actually used by GM .
like most 1994-1995 Grand Am's it will be missing pin "B". Thus you will need to purchase an automotive scanner capable of scanning this unique year. Actron CPA will perform this task. The scanner kit comes with the scanner, software, and harness capable of pulling the codes, and IT will work. The Actron CPA is no longer manufactured but you should be able to purchase a used one , GM uses the Tech-1 scanner. I always used the ALDL cable hocked to a laptop....

The 16-pin connector is not a DTC connector, but is rather a modified ALDL connector. These vehicles are not OBD-II compliant and will not work with OBD-II scanners.

The pin out of the 16-pin connector for these vehicles looks something like this:

_________________________________
\ X | X | X | 4 | 5 | 6 | X | X /
`\9 | X | X |12 | X | X | X |16/
``------------====-------------

Where: X denotes pins that are unused.

Short 5 (ground) and 6 (test) to receive ECM error codes via the SES indicator.

You should be able to get the old style error codes from a blinking Service Engine Soon light. To do so, you short pins 5 and 6 on the above diagram.
Like I said I have never used this method...

[pudman]

(12-01-2010 05:17 PM)jgate Wrote:  1995 Grand AM is unique where as it is between OBDI and OBDII, some people actually refer to the 1994-1995 years as OBD1.5 but this term was never actually used by GM .
like most 1994-1995 Grand Am's it will be missing pin "B". Thus you will need to purchase an automotive scanner capable of scanning this unique year. Actron CPA will perform this task. The scanner kit comes with the scanner, software, and harness capable of pulling the codes, and IT will work. The Actron CPA is no longer manufactured but you should be able to purchase a used one , GM uses the Tech-1 scanner. I always used the ALDL cable hocked to a laptop....

The 16-pin connector is not a DTC connector, but is rather a modified ALDL connector. These vehicles are not OBD-II compliant and will not work with OBD-II scanners.

The pin out of the 16-pin connector for these vehicles looks something like this:

_________________________________
\ X | X | X | 4 | 5 | 6 | X | X /
`\9 | X | X |12 | X | X | X |16/
``------------====-------------

Where: X denotes pins that are unused.

Short 5 (ground) and 6 (test) to receive ECM error codes via the SES indicator.

You should be able to get the old style error codes from a blinking Service Engine Soon light. To do so, you short pins 5 and 6 on the above diagram.
Like I said I have never used this method...

thanks for the quick reply. when you say short is that meaning jump those 2 pins together? and is this a KOEO or KOER test?