View Single Post
rusnak rusnak is offline
Registered
 
Join Date: Oct 2004
Posts: 15,612
Quote:
Originally Posted by manbridge 74 View Post
Bosch Motronic is unable to run closed loop at WOT.

Oxygen sensor has no input, uses preset maps to fuel the engine. In stock form you will find that it’s a fairly rich AFR.
Exactly right. At cold start up, and at WOT it runs pre-set maps. It also does not have short term fuel trim. That came later.
Old 03-09-2022, 08:04 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #38 (permalink)