Wow, 4 O2 sensors. Where there reasons given for the replacement?
Obviously, something is seriously wrong. You need to check/do the following:
1. Have the injectors cleaned. Many communities have shops that specialize in this. Check the Yellow Pages for "injection service" or "diesel service". Many diesel injection places have gas injector rigs as well. Cost is usually around $20 per injector. Generally, this is done ultrasonically and you get a nice printout with spray pattern, flow rates, etc. You will need to remove the injectors and drop them off.
2. Check fuel pressure. Proper pressures and proceedures are located in the service manual.
3. As mentioned, make sure the ECM recall is done. The recall addresses an issue that causes the car to throw LAF/O2 related codes.
If the car really is running rich, then you run the risk of damaging the cats, a very expensive problem. So this should be taken care of as soon as possible.
As an aside, the "technicians" in your service department CLEARLY don't have much in the way of troubleshooting skills past "replace the part indicated by the code". This seems to be a common trait among Honda dealers.
Obviously, something is seriously wrong. You need to check/do the following:
1. Have the injectors cleaned. Many communities have shops that specialize in this. Check the Yellow Pages for "injection service" or "diesel service". Many diesel injection places have gas injector rigs as well. Cost is usually around $20 per injector. Generally, this is done ultrasonically and you get a nice printout with spray pattern, flow rates, etc. You will need to remove the injectors and drop them off.
2. Check fuel pressure. Proper pressures and proceedures are located in the service manual.
3. As mentioned, make sure the ECM recall is done. The recall addresses an issue that causes the car to throw LAF/O2 related codes.
If the car really is running rich, then you run the risk of damaging the cats, a very expensive problem. So this should be taken care of as soon as possible.
As an aside, the "technicians" in your service department CLEARLY don't have much in the way of troubleshooting skills past "replace the part indicated by the code". This seems to be a common trait among Honda dealers.
Have them cleaned first. If that doesn't do it, then DON'T buy "Honda" injectors. Almost all injectors are made by only a few companies. I believe that ours are Nippondenso. Buying them from a Denso dealer will result in a SIGNIFICANT savings (like over $500).
