I have a '96 LT1 with 110,000 miles. It feels like it loads up with too much gas around 2,000+/- RPM. This happens under light load only. At highway speeds and at WOT it's fine. I replaced the pre-cat o2 sensors and cleaned the MAF but it really didn't help. Any help woud be appricated!

Darin

 

have you tested fuel pressure? could have a leaky injector as well. to test for a leaky injector lift the fuel rail off the intake manifold, put the key into the on position which primes the fuel pump and if any fuel leaks out from one of the injectors then it's a problem.

 

Wow, I thought I checked email response for this thread. I guess I didn't.
Anyway, I checked all the injectors and they all 'click' and are all dry.
The car runs great until it warms up, after that, it loads up badly between 1,500 to 2,000 RPM. I'm hoping it's not the opti.