[paulj]

Engine management light has come on after weeks of an intermittent fault. Friend plugged in his diagnostic fault reader and it's showing P0132 (Heated oxygen sensor bank1). Has anyone had experience of replacing it? Is it easy to do and do you have to use a genuine Nissan part?

 

[mdvineng]

Hi depending on what engine you have, it's located on the exhaust manifold and easy to get at, you will need a short arm split ring 22m AF spanner. Also check that the engine earths are good (pin one on the sensor is grounded)and that the connector is free from water inside as these will give the fault also. retightening torque is 37ftlbs. I don't see why a generic one that is specified for a Note shouldn't work, genuine Nissan one will maintain a warranty if applicable and I've seen no evidence that a generic one is less reliable.

regards
dave s

 

[paulj]

Update- checked grounds, undid and retightened then measured between ground and pin 1 on sensor connector. Reads 1.998k ohms. Disconnected main connector on engine management unit and have continuity between pin74 and pin1(sensor). Any ideas on what to check next?

 

[mdvineng]

I would of thought that the pin 1 should read near to 0 ohms as it's a grounded wire. To test run a seperate ground wire and see if it cures it or put a voltmeter across terminal 35 on the ECM and earth, according to service sheets should be0v <0.3v sometime and above 0.6v<1.0v sometime @2000 rpm steady condition normal engine temperature, if not the zirconium sensor is faulty.

 

[mdvineng]

ps an exhaust leak after the first O2 sensor andbefore thesecond will also cause the fault.

 

[SneakyElephant]

I can smell something...your manifold must be cracked

Sensitive content, not recommended for those under 18 Show Content

Edited by: SneakyElephant

 

[mdvineng]

THE ONE ON THE RIGHT SEEMS TO BE LAUGHING

 

[SneakyElephant]

The one on the left is actually an inflatable DECOY ELEPHANT, which we use to fool the ivory hunters. The nasty poacher aims for the decoy and pulls the trigger...POP! No more elephant! Meanwhile, the rest of the herd makes off at top speed and is now safely out of range. Sneaky or what! (The one on the right is giggling to himself as he blows it up).
Edited by: SneakyElephant

 

[paulj]

Have run a temporary wire to earth. Been for a short run and car ran fine. Will have to see how it goes during the week.

 

[mdvineng]

Good one Paulj, let us know what happens.

 

[mdvineng]

The one on the left is actually an inflatable DECOY ELEPHANT, which we use to fool the ivory hunters. The nasty poacher aims for the decoy and pulls the trigger...POP! No more elephant! Meanwhile, the rest of the herd makes off at top speed and is now safely out of range. Sneaky or what! (The one on the right is giggling to himself as he blows it up).

is he using Laughing gas?

 

[SneakyElephant]

Probably...but don't light any fags just in case...the one on the left might be inflating the one on the right, now I come to think of it.
Edited by: SneakyElephant

 

[paulj]

Have put in a permanent wire to earth. Different car now. Engine management has gone off

Thanks for all the advice as it's saved me a few quid!

 

[mdvineng]

Glad it's fixed.
It would be a good idea to find where the fault is though, is it the sensor body or connectors back to the ecu and ground.

regards



dave s

 

[paulj]

Earth wire has continuity to the main connector on the ECU. I'm assuming there is a bad connection inside.

 

[mdvineng]

uhmmm! could be a dry joint on the connection pin to the pcb inside the ECU, wonder if the top clips off? for a resolder!


regards



dave s