Results 1 to 1 of 1

Thread: Erratic AFR

  1. #1

    Default Erratic AFR

    So now that I'm up & running I tried to take my truck on a test drive. Any time I try and give it some throttle the AFR goes crazy and it acts like it's missing. I took a datalog and I'm not sure what's going on. It seems to be fairly smooth when sitting at idle, but jumps all over when the trying to drive. All the other sensors seem to be reading accurately and not jumping around. I moved the WBO2 sensor wire away from everything so I don't think it's noise and I have everything grounded directly to the battery. Any ideas?
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Truck datalog.jpg 
Views:	11 
Size:	63.6 KB 
ID:	9072  

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
About us
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Headers, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.
Join us