problems!! pls help!

[nlghtcrawler]

ok, i had code 33, and so i replaced my spark plugs, cleaned the heads, fuel injectors, and my fuel, now, not only is it getting code 33, its getting 43, 45. i talked to autozone they said its my ignition module or something, does that sound right?

[Morley]

Code 33, MAF reading high See this page http://chevythunder.com/maf_code_33.htm
For all codes look here http://chevythunder.com/Flow%20chart%20index.htm

[89IROC&RS]

code 33 is MAF low vacume
code 43 is ESC
code 45 is O2 sensor rich

to me this is all evidence of poor combustion and lowering rpms from what the computer is expecting. It does sound like an ICM to me. get one from www.GMpartsdirect.com, its alot cheaper than the dealership. its pretty inexpencive, and is easy to install, wouldnt be a bad place to start.

[nlghtcrawler]

so with all these, my gas milage is great but!!! my acceleration SUX ASS, right now i couldnt beat a....umm 18 sec mini van