Maf and Injectors, correct?

[Danny-Boi]

When i bought my car the previous owner had installed 30# injectors and a maf that looks like its a sn95 maf with the center post cut out of it. Does this seem right to anyone? Also, I am getting poor gass mileage could this be the problem? I have a 1990 Gt hatchback.
Thanks

 

[jrichker]

Dump the codes and see what the computer says is wrong…

Here's the link to dump the computer codes with only a jumper wire or paper clip and the check engine light, or test light or voltmeter. I’ve used it for years, and it works great.

See http://www.troublecodes.net/Ford/
OR
See http://www.dalidesign.com/hbook/eectest.html for more descriptive help
OR
See http://www.mustangworks.com/articles/electronics/eec-iv_codes.html