Now what?
#1
Now what?
Recently my 96 Max AT sometimes stalls at stop sign/traffic lights and CEL light is on, sent to Firestone, was told MAF sensor needs to be replaced, and they quoted me $670 for the job. Checked code, there are two codes, 0102 and 0304 which point to MAF sensor and knock sensor. I cleaned MAF sensor, it didn't do anything, the code came back again so I ordered MAF sensor and KS from eBay and replaced both on Sunday. The old KS is no good, got cracks on it. I also cleaned throttle body and clear the codes. Then a day later, the CEL came back on, check the code again, this time, it is 0303 and 0304, front left O2 sensor fault and knock sensor fault. This doesn't make sense, I just replaced KS so I wonder if it is really KS problem or, maybe KS code just piggy back on O2 code.
The car does not stall anymore, but the engine is not smooth as it should be, acceleration is not as quick and I can feel there is a push when up-shifting from first gear to the second.
Should I also go ahead to replace front left O2 sensor or my replacement KS sensor is a bad one?
Speaking of O2 sensor, would ebay ones be any good:
http://www.ebay.com/itm/New-Nissan-Maxima-Infiniti-I30-J30-O2-Oxygen-Sensor-/330687471067?fits=Year:1996|Model:Maxima&hash=item 4cfe825ddb&item=330687471067&pt=Motors_Car_Truck_P arts_Accessories&vxp=mtr
or
http://www.ebay.com/itm/New-O2-Oxygen-Sensor-Before-Catalytic-Converter-Nissan-Frontier-Xterra-2003-/230798192158?fits=Year:1996|Model:Maxima&hash=item 35bca4ee1e&item=230798192158&pt=Motors_Car_Truck_P arts_Accessories&vxp=mtr
Thanks.
The car does not stall anymore, but the engine is not smooth as it should be, acceleration is not as quick and I can feel there is a push when up-shifting from first gear to the second.
Should I also go ahead to replace front left O2 sensor or my replacement KS sensor is a bad one?
Speaking of O2 sensor, would ebay ones be any good:
http://www.ebay.com/itm/New-Nissan-Maxima-Infiniti-I30-J30-O2-Oxygen-Sensor-/330687471067?fits=Year:1996|Model:Maxima&hash=item 4cfe825ddb&item=330687471067&pt=Motors_Car_Truck_P arts_Accessories&vxp=mtr
or
http://www.ebay.com/itm/New-O2-Oxygen-Sensor-Before-Catalytic-Converter-Nissan-Frontier-Xterra-2003-/230798192158?fits=Year:1996|Model:Maxima&hash=item 35bca4ee1e&item=230798192158&pt=Motors_Car_Truck_P arts_Accessories&vxp=mtr
Thanks.
#6
The two upstream (front) O2 sensors are the exact same interchangeable part while the downstream O2 sensor after the CAT is different. I got both my upstream O2 sensors from www.rockauto.com 3 years ago and they've held fine.
#7
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Your new MAF is metering the air differently, correctly we hope.
This has now opened up a new issue with an o2. Makes sense actually.
The KS code, as previous mentioned, does come up with o2 codes.
Replace the o2, clear the codes and see if any codes come back.
This has now opened up a new issue with an o2. Makes sense actually.
The KS code, as previous mentioned, does come up with o2 codes.
Replace the o2, clear the codes and see if any codes come back.
#8
also +1 for not letting Firestone do that RIDICULOUS over priced labor. I know that included core charges for the MAF but still. All you need is a screw driver to change it. Literally just a screw driver.
I hate that Autoshop chain with a PASSION.
I hate that Autoshop chain with a PASSION.
#10
O2 sensor replaced. The bad one has a lot of black carbon residue on it. Cleared the code and CEL remains off for few days. But, there is still a problem with the car, when pulling from stop, sometimes it hesitates, the gas peddle feels heavy. Cold engine is doing a little better. What else should I look?
#16
Yesterday I checked vacuum leaks with can of Carburetor cleaner, found no leaks. Checked TPS sensor, 0v from pin one but 5v from the connector, low and high om readings seem to be fine. Does this mean TPS need to be replaced?