nissan micra UK p0132 views

[andybaz]

Hi all,probably missing the basic: p0132 02 signal high bank 1 sensor 1
New B1S1fitted.
Cleared the code, noprobs, ignition on: NO CODES,no eml light,start,engine running, code p0132, NO eml light.

Using 10.2 s/ware in the 02 data link:
Ignition on:
HO2S S1B1 0.00
HO2S S2B1 2.42
HO2S1 MNTR B1 LEAN
HO2S2 MNTR B1 LEAN
HO2S1 HTR B1 OFF
HO2S2 HTR B1 OFF
Ignition cranking,idling:
HO2S S1B1 2.49 constant
HO2S S2B1 1.93-2.49
HO2S1 MNTR B1 RICH
HO2S2 MNTR B1 LEAN
HO2S1 HTR B1 OFF
HO2S2 HTR B1 OFF

I plugged into a car at work,same cr12 model, B1S1 0.06-0.78v & B1S2 0.28-.032v.

Any 1 have any ideas, i am waiting on the loan of some gen manufacturer disc info,to follow their diagnostic path.Thanks for your time and views.

[David Green]

Hi all,probably missing the basic: p0132 02 signal high bank 1 sensor 1
New B1S1fitted.
Cleared the code, noprobs, ignition on: NO CODES,no eml light,start,engine running, code p0132, NO eml light.

Using 10.2 s/ware in the 02 data link:
Ignition on:
HO2S S1B1 0.00
HO2S S2B1 2.42
HO2S1 MNTR B1 LEAN
HO2S2 MNTR B1 LEAN
HO2S1 HTR B1 OFF
HO2S2 HTR B1 OFF
Ignition cranking,idling:
HO2S S1B1 2.49 constant
HO2S S2B1 1.93-2.49
HO2S1 MNTR B1 RICH
HO2S2 MNTR B1 LEAN
HO2S1 HTR B1 OFF
HO2S2 HTR B1 OFF

I plugged into a car at work,same cr12 model, B1S1 0.06-0.78v & B1S2 0.28-.032v.

Any 1 have any ideas, i am waiting on the loan of some gen manufacturer disc info,to follow their diagnostic path.Thanks for your time and views.

Hi Andy,

Looking at the HO2S1 MNTR B1 RICH constantly would indicate areas like 'Air leaks' MAP/MAF, Load sensors, coolant sensor circuit etc.

David

[andybaz]

Hi David, thanks for your views,car runs sweet,although i can detect light poping through the exhaust.

What got me confussed is NO voltage with ign on at b1s1,then as soon as you crank,and the engine idles, it climbs straight to 2.49v, when viewed in graph form,no osilations showing.

Disc should be with me soon,then i can follow the nissan data path for correct values etc

Once i get this sorted then i get paid, i understand that 02 sensors can be tested via voltmeter direct to signal wire, so thinking about unpluging 02 sensor and reading direct from sensor,or should i leave connected and simply backprobe the signal wire ??

Thanks for your time, SO repcomes tomorrow, fingers crossed he has my 10.2 guide.

[David Green]

Hi Andy,

Could be wrong but sounds like a burned exhaust valve seat to me. One thing you could try to do, but is a bit tricky if you are not very familiar at reading scopes, is to measure and record the crankshaft sensor operation through all engine cycles, then look at each of the power strokes, the cylinder which is contributing the least will be shown on the waveform by a larger voltage at that point in the cycle. Tricky I know but can be read.

David

[andybaz]

Hi Andy,

Could be wrong but sounds like a burned exhaust valve seat to me. One thing you could try to do, but is a bit tricky if you are not very familiar at reading scopes, is to measure and record the crankshaft sensor operation through all engine cycles, then look at each of the power strokes, the cylinder which is contributing the least will be shown on the waveform by a larger voltage at that point in the cycle. Tricky I know but can be read.

David

Crankshaft sensor checking and indepth testing is all tricky to me yes,as teaching myself,learning as i go, utilising toyota manuals for basic test procedures as a rough guide etc, crank values not available on the s-pro 10.2, engine running data compared to other makes on 10.2 is poor.
Will see whats on the disc when i get to loan them,if they are any good and you want some specs

[David Green]

Crankshaft sensor checking and indepth testing is all tricky to me yes,as teaching myself,learning as i go, utilising toyota manuals for basic test procedures as a rough guide etc, crank values not available on the s-pro 10.2, engine running data compared to other makes on 10.2 is poor.
Will see whats on the disc when i get to loan them,if they are any good and you want some specs

Hi Andy,

I forgot to mention that I have some Toyota Training Manuals, they may not be exactly specific to the car in question, but there could quite well be some good information in there to help you if you want. Please let me know and I will help were I can

David

[andybaz]

Hi Dave,toyota is no problem, i work for them

[David Green]

Hi Dave,toyota is no problem, i work for them

Hi Andy,

Not sure why you need Toyota data for a generic code

P0132

Test;

HO2S1 = Ignition on plug disconnected terminals 4 & earth = Battery voltage
HO2S1 = Plug disconnected measure resistance terminals 1 & 4 = 3.3 - 4.0 Ohms
HO2S1 = Plug connected engine idling terminals 2 & earth = 0 - 1 volt flutuating.

Faults

Short to positive with wiring which will give your high voltage figure, if not the wiring then ECM requires checking as this could be the short to positive (internal) fault.

David

[andybaz]

Have Dave,
Been back out to look at the micra,going down the next route of replacement sensor 1st, hopefully have saturday morning to fit sunday.

Done some resistance checks and it appears i dont have continuity, pin 2 brown oxy to pin 35 brown ecu,so may be looking at puting in a bridge wire to illiminate etc etc.

With the car idling, fine for about 30 seconds then the idle is effected and driveability, no power,then surges forward while driving etc etc.

May be using a pattern oxy sensor is my problem at £56 compared to a dealer at £150, and i understand that the dealer replaces both front and rear sensors at the same time, (comment from a nissan techy).

Will report back when second new sensor fitted.

Andy

[andybaz]

oxy sensor bench test rig

Hi all, my customer requested removing 2nd new oxy sensor and calling it a day, amicable decission, no ill feelings and will call upon me agin for any future work as he says i have been open and honest all the way and time was running out for the repair, so he's poping along to the dealer. Since discovered the vehicle has had front end accident damage repair, so possible wiring or ecu fault.
i have a feeling he will let me know what the final out come was.

Any way, back to the sensors, i have 2 new oxy sensors NTK 0ZA603-N2, 1 has done 55mile the other a 5 mile road test, going to see about bench testing them using a flame from a butane burner as a lot of web sites suggest, or if any one here as bench tested them please comment or drop me a pm, if i cant, will send back to NGK for warranty test, if bad i get a refund, if good, i get them back and will be for sale at trade cost , thats what they cost me.

My contact for gen info has'nt landed yet

[andybaz]

OK, bit of an update on this one,both my sensors are good, NGK uk rang me, spoke of situation,units sent to germany for testing and both ok, NGK uk inform me of an article in a trade mag, regarding front sensor problem: report commented that the rear sennsor was incorrect although not showing on the SOLUS PRO, and once the rear was replaced the front corrected itself, but as NGK said, there was no hard evidence in report to confirm this.

Aswell as this, they have also come across a link where the system requires both exhaust sensors be replaced at the same time,which co-insides with a little feed back i have from a nissan techy. Just need to wait and see if my client comes back to me, i know todate he is still running round with a deffective sensor 1 disconnected,which i pressume will in the long run effect the cat and engine internals with incorrect fueling etc etc.

If he comes back,will see about fitting the 2 new sensors FRT & REAR and see what happens, i can understand his concern when they are £150each from the dealer.