I have a Honda Accord sedan 1999 EX. I keep getting a check engine code 1164. I already changed an oxygen sensor, and the problem did not go away. I tried everything that the auto shop told me and I still get that check engine thing. Is there anything you can suggest for me to do?
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My first thought was fuel pressure. Low fuel pressure would cause the engine to go lean but not set a code for the actual problem. Is it possible the fuel filter is clogged ? Have you checked fuel pressure?
there can be many reasons for this. clogged air filter, clogged fuel filter, old spark plugs. if you do a tune-up and still the same problem, there are two things you can change, that will be the o2 sensor, which regulates how much gas and oxygen to combine for combustion, or the less likely one would be your etc or engine temperature control, which when bad for some reason also makes your car waste more gas than usual. but o2 sensor is MUCH more likely to go than etc sensor. hope this helps, goodluck
P0041 Downstream Oxygen Sensors Swapped From Bank To Bank How does a P0041 code trigger the check engine light? This code will trigger the light to come on under the following condition:
The Heated Oxygen Sensor Monitor, a strategy built into the computer, determines if the Heated Oxygen Sensor (HO2S) signal response for a change in fuel trim corresponds to the correct engine bank. If a response from the Oxygen Sensor being tested is not indicated, a trouble code will be set and the MIL (Malfunction Indicator Lamp) will illuminate.
Possible Causes: Crossed Heated Oxygen Sensor harness connectors Wiring swapped from one Oxygen Sensor connector to the other Wiring changed at the computer connection or in the related harness