Failure Code P0171
I changed MAF sensor and the 02 sensor
New DENSO 234-9049 02 sensor and DENSO MAF 197-6110 sensor
Checked for vacuum leaks
Now that the two sensors are changed out I have a new code P2237.
I drive the car about 30 miles the check engine light is off. When I turn off the engine and then start the car again after 5 minutes the check engine light comes on with this new code P2237.
I tried two more times clearing the code and re starting it after a drive. I get the same results each time.
If I put the old DENSO 234-9049 02 sensor back I get the check engine light and P0171 code again and the system sets up with 6 registers ready.
If I put the new DENSO 234-9049 02 sensor in again I get the check engine light P2237 code
with 3 registers ready.
I have checked the fuses and the relays they are all good.
Where do I go from here?
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Wednesday, October 9th, 2024 AT 10:03 PM