Feb 05, 1990 · How old is the O2 sensor, Russ? They can drift and not trip codes. Also, the heater element in them can fail, and in 1990 you may not get a code for it. Does it run OK for the first two minutes of cold operation? After that, the O2 sensor kicks in.
Howell EFI, Marine City, MI. 25,488 likes · 66 talking about this · 25 were here. Howell Engine Developments' goal is to reduce the difficulty in adapting late model GM engines or fuel injection...
poorly refined gasoline can kill an oxygen sensor, as can the use of some over-the-counter fuel additives which are not “oxygen sensor safe.” These failures can occur either: 1) instantaneously at the time the contaminant contacts the oxygen sensor, causing a dead (totally nonfunctional) sensor, or 2) gradually over a period of time.
Oct 03, 2020 · This sensor can also provide data on the emissions produced, and indicates when engine emissions are above standard limits using the CEL and oxygen sensor light. A poor or failed oxygen sensor will not only affect your car’s engine performance and fuel efficiency, but will also lead to incorrect emission measurements.
This oxygen sensor bypass kit allows you to remove your o2 sensor without causing a check engine light. If you are choosing to run a leaded race fuel this kit is a must have to keep the car running correctly and save your o2 sensor from damage.
The vehicle had come from another shop, which had already replaced the oxygen sensor. The shop that called me also replaced the O 2 sensor. Obviously, replacing the sensor was not the proper fix. The vehicle had repeatedly returned with a code of P0031—O2 sensor B1S1 low current flow heater circuit failure (open circuit).
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