O2 Sensor Part Number confirmation

[ftuhy]

My '96 NSX T kicked out code 42, rear primary O2 sensor heater malfuntion. I confirmed the heater element is open (vs 13 Ohms on the good front primary sensor).

I took the car to the local dealer, they confirmed the diagnosis, and ordered a new sensor under the '95 - '97 extended emissions warranty.

Issue: According to the parts catalog I pulled from NSX Prime, the Part Number is 36532-PR7-J02.
The dealer ordered part # 36541-PR7-A01 ($285.24 their list price).

I checked at www.magauto.com and for the first number they show its available & a retail price of $214.35 ($158.62, their price)

Is the one the dealer ordered an updated replacement, or did they order the wrong part number? magauto indicates that number from the dealer is the front primary sensor). Any insight on this before I call the dealer & inform them of their apparent mistake?

I don't want a third trip to the dealer just to replace a sensor.

Frank

 

[Larry Bastanza]

Hi Frank,

You are correct 36532-PR7-J02 is "Primary", Rear Bank(also known as Bank1)

The 36541-PR7-A01 is the "Secondary", Rear Bank.

Primary is BEFORE the cat, Secondary is AFTER the cat.

The sensor itself is actually the same, just the wiring is a different length, and I really do not think the one they ordered is long enough.

HTH,
LarryB

 

[SWIFTVISION]

Are the rear O2 sensers the same ones found on Civic's, Accords, S2000's and other Honda's?

 

[ftuhy]

Larry,

The dealer installed the O2 sensor under warranty today and all is well. :biggrin:

I had called them and asked them to verify they had the correct part number on order, as it (36541-PR7-A01) disagreed with the parts list. They swore they had the right number.

When I got the invoice today, it had the correct part number for bank one, primary (36532-PR7-J02). So, they either must have done a double check after I called, or they ordered both sensors to be sure & installed the one that fit correctly.

Frank
96 NSX-T, red/tan


Swiftvision - I don't know if those cars/engines used heated sensors, which are 4-wire devices. Unheated O2 sensors are 2-wire devices. Its important to use heated sensors for warranty purposes (if that still applies), and most likely for not affecting catalytic converter life if you make frequent short trips.