Is the O2 sensor heater on my Silverado Sierra?
Recently purchased a 2001 Silverado in private sale. The previous owner had recently replaced fuel pump and had an exhaust leak fixed (included all maintenance records with sale). I went to get it tested at emissions (Arizona) but they would not test it as apparently the ECU was cleared and not all tests (O2 sensor heater) had rerun.
Is the O2 sensor heater ” not ready “?
I am showing all ready except “O2 Sensor Heater” (which is what the same as they told me at the emissions test). Driving: There has already been over 500 miles put on the truck since the exhaust work was done on it. I have put over 150 (freeway and city) since purchasing.
What should cold start temperature be for O2 sensor?
I read somewhere that a “cold start” actually needs to be below 70 degrees to run these diagnostics. If this is the case then I am SOL as its almost July in Phoenix and 115 degrees outside. I’m about ready to take it to the dealership but really dont have money to blow on it if its something simole. Any help is greatly appreciated.
What to do when heated sensor is not ready?
Hold Steady Speed. Hold a steady speed of 88km/hr (55mph) for 3 minutes. During this time the O2 response, air Intrusive, EGR, Purge, Misfire, and Fuel Trim diagnostics will be performed. Decelerate. Let off the accelerator pedal. Do not shift, touch the brake or clutch.
Recently purchased a 2001 Silverado in private sale. The previous owner had recently replaced fuel pump and had an exhaust leak fixed (included all maintenance records with sale). I went to get it tested at emissions (Arizona) but they would not test it as apparently the ECU was cleared and not all tests (O2 sensor heater) had rerun.
How to run EVAP monitor on Chevy Silverado?
1. Drive 5 min at steady speed between 30 and 60 mph 2. Stop vehicle and idle engine for 4 minutes. 3. Turn engine off. Remove ignition key. The ECU will run the EVAP Monitor once the engine has been shut down and ignition turned off.
Why is the oxygen sensor not ready for the drive cycle?
These constantly monitor the sensors, the fuel mixture, and the occurrence of misfires. If the oxygen sensor heater monitor is not ready, check to see how many other monitors are not ready. If the oxygen sensor and catalyst monitors are also not ready, the culprit is most likely a weak battery.
Why is my Chevy Silverado not running emission monitor?
We understand your Chevy Silverado is having difficulty getting certain emission monitors to complete (become Ready). The emission monitors are programmed to run while your vehicle is being normally operated. However, due to different driving habits, the criteria required to run a monitor may not always be met.