engine cutting back

Chevy Forum Chevy Classifieds Photo Gallery Chevrolet News Search Contact CF Sponsors
Member List Forum FAQ Chevy Timeslips Chevy Recalls TSBs Calendars Register Login

engine cutting back

Printable Version

Chevrolet Forums >> Chevy Trucks, Vans & SUV's >> Silverado >> engine cutting back

Page: [1]

Message

<< Older Topic Newer Topic >>

engine cutting back - 8/14/2007 5:24:18 PM

bvinson

Posts: 1
Joined: 8/14/2007
Status: offline

hi,

I have a 1997 Z71 with a 5.7 350 ,i just put a new engine in and engine is running fine ,except for one problem.
When i'm going down the highway at 45 to 50 mph and accelerate the engine starts cutting back,it only last for about 4-5 seconds then smooths out,and it it only does it in overdrive. I took it to the guy who rebuilt my trans and he said the trans was fine. He hooked it to his computer and it threw the code "fuel mixture too rich in bank #2".He also did a stall test on it. Any help would be greatly appreciated.