GAZZUZZ:


P0443 how i would diagnose it.

Diagnose the existing part.

First i would use a multimeter to confirm continuity, next i would use a 12v battery to confirm actuation, finally i would blow test with my mouth to confirm the valve is open when voltage is applied and closed when there is no voltage.

Diagnosis of the system.

I would use a scanner to actuate the evap purge solenoid to test for same functions as when it was connected to a battery.
The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the ECM.


P0138 : I would connect my scanner to the car and examine the live readings.
P0138 is a common OBDII code, the code is triggered when the voltage at the sensor remains above threshold for 20 seconds or more or when voltage to the sensor is to high.


You are looking at a possible faulty oxygen sensor bank 1 sensor 2 (hope you replaced the right one) downstream.

You are looking at a possible wiring issue.

You are looking at a possible faulty engine ECU.

P0037:
The code means that there is a problem with the heater element circuit of the heated oxygen sensor.

How i would diagnose. I would start by using a multimeter to check for resistance around the heater connectors when the sensor is disconnected, usually between 2-5ohms, as the word "heater" it is a heating element within the O2 sensor and would require a great deal of current to operate.

I would check the connectors for corrosion, I would check for any burnt fuses and replace.

Very importantly i would check that the wiring of the connector from the harness to the O2 sensor was in the right order, in the past I have seen connectors that pulled out and were installed wrongly on both the harness side and the O2 sensor side. For this you would need to download pics of the part and examine.

Next phase testing for voltage to the heater element from the engine ECU.

On the heater line from the engine ECU, install a multimeter, set to test for D.C voltage, start the car, there should be a short burst of 12v for about 3-5 seconds as a series of short pulses, with that you are sure the engine ECU is still providing voltage to the heater element.


P2138:

These sensors are a kind of potentiometers which transform the accelerator pedal position into output voltage, and emit the voltage signal to the ECM.

When defective they fall out of range BUT not because the device is defective, but because the resistance readings are out of range when at rest position.

Place scanner on live readings and check for the opening and closing angles when depressed fully and when at rest.

Refer to this thread and check your pedal again. https://www.nairaland.com/4880683/mature-cockroach-120km-hr


P0420: You have no catalyst, it's really not an issue, just install a spacer on the downstream O2 sensor.


Hope this helps.

TGIS

Costee:

Delete and re-scan after a couple of drive cycles.

Ogbunigwe2018:
Anybody that talks too much can never be taken serious

deedee44:

Mtcheeeeeeeeeeeeewwwwwww

peeps4u:


I get your points........but
If only the fines reflect the gravity of the offence.
These fines were just designed as source of income for govt and not to necessarily enforce traffic orderliness. That's you will enter a one-way road without any road sign indicating one way. How Will a stranger know this is a one way road without sign?

How much was monthly minimum wage last year? Imagine someone being charged 11k for traffic offence.

These fines are just simply an extortion from govt. No citizen will happily submit himself to pay it if he has the option to run.

Felicity0001:
Started my day right from my living room this morning...

GBAM GBAM GBAM!!!
Accepted!

Hello
Rider: ...ok I'm stamding outside
Got to pickup location opened the trunk while he and his boys loaded their canopies as I joined to do it so they dont cut or damage my speakers or any wires.

Oga enter front seat while boys started loading themselves like sardine fish, 5th ine was about entering...

Me: no bros i don't carry more than 4 passengers,
Oga: please na he's just a little boy
Me: I insisted, already I dont dey end trip. N500 don show for my dash board. Chai!! This taxify no go kill somborri...
Oga: speaks in Yoruba for the boy to stay behind.
Me: you need another req.
I'd already done fare review as trip didnt go on.

Destination, fectac. Stopped at total filling station to fill up my tank rider was cool and road was free and good all tru from abule egb to festac at 2nd rainbow.

Discharged passengers and immediately another req enter. Map says across the apps oshodi exp rd. Guy man just tire. Was zooming towards the dir n didnt border to turn of my uber app since im not ready to spend 20min+ in traffic.

Just at the roundabout close to mega chicken I bit the traffic light na so LASMA just dump come out like lion ready to devour its prey.

LASMA 1 walked towards my direction addressing me in a calm voice
Me: oga sorry i didnt notice any traffic light, the lights r too high for my eyes to see and as d road was free...
B4 i could even finish mu talk oga LASMA don put hands inside my car tru d small opening in my glass trying to open d door from the inside.

Me Inside my mind, if i allow this man enter my car it haf finish for me evem god self go vex for me. Omo guy man windup na so LASMA hand pin dia!!! God punish ur fada!!!



LASMA 2 was already taking a video. I send U? Traffic light already pass my lane the trailer behind me was horning loudly.

Me: oga remove your hand make i clear well na,
LASMA 1: Still in his calm voice, even if I want to listen to you not in this state that u pin my hands na open let me come in...d id1ot was trying to lift the open pin while i was antagonizing by close it back with one hand while my eyes was looking for the fastest exit of escape.

To cut it short... LASMA 2 asked him remive his hands as he did na so I zoom off...

Req came in on uber... I cleared. Baba dey mega chicken...chio!!! How I gi do now I just use reverse from to d compound b4 mega chicken, pickup rider... Like dis now I dey Gerrard Rd...

Lolzzz...God punish LASMA...after I spent 11k last yr I promised myself never to fall much again.

Costee:

Delete and re-scan after a couple of drive cycles.

nurey:


You should post in Nissan/Infiniti thread so costee and Nissparts can take over, there is little I can do since I am not a practicing technician.

You should also put a location so those close by can recommend appointment

KINGreignn:

You have issues with your O2 sensor and Heated Oxygen sensor and Catalytic Converter in bank 1.
Also, you have an evap system malfunction.
Is
Check for voltage readings on these sensors and also check for exhaust leaks.

DonJoeSneh:
Oga, hand dey itch you ba? Who said it's free or sold....just face front biko.

DonJoeSneh:

Ion understand oooo, is this the keyring I've been hearing pipo shout since i joined this thread? I was even thinking it's one car component. What's special about it, e dey reduce Uber commission?

ayolucasf:
How much is shipping to Lagos? I can handle clearing myself.

oyfreeman:
still 1.3m ?

Edunwa302:
Does the car have duty?