Ive got a 2000 firebird formula with a cam'd lq9. It's running super rich and its not throwing any codes. I'm stumped. Any help will be greatly appreciated

 

A start would be a detailed description of the build.
Next would be a posting of the tune and data logs.
From there, someone can comment...

 

It's a cam only lq9, longtube headers with corvette o2s, SLP lid, 42lb injectors. It was tuned about a year ago and ran fine for the longest time. Then about a month or so ago it started becoming increasingly rich. I believe that the injectors were used, but looked in decent shape. I don't have the equipment to do the data-logging. What are the easiest and simplest checks first. Injectors, vaccum leak, dirty maf?

 

Vac leak, exh leak, dirty maf, lazy O2's, are some checks to make. Without a scan tool, it's difficult to tell what has happened. Take it back to the tuner and have him run a scan????

 

Ok. Thanks. I'll try all the easiest stuff and I'll let you know what's up