₦airaland Forum

autologic:
Don't get yourself confused ,what you need the basic operation ubderstanding .
there are two types of O2 sensor narrow band and wide band .Narrow band typically switch from 0V to 1V to react to air fuel mixture variation and relies on voltage solely to achieve this whereas wideband sensor uses current to follow air fuel variation and the small 3.3V -3.*** V voltage margin is used to represent the wide margin of current fluctuation(this might sound a little bit complicated) which is why the voltages fluctuation is small.
Toyota is one of the early adopter of wideband O2 sensor so that which is the reason for your car 3.×× v values ranges ,it is using current internally to respond to air fuel ratio variation but voltage can only varies in corresponding small step to depict this.
The ecu uses the sensor current variation to make fuel trim adjustment and diagnosis .
From my own practically experience ,the sensor voltage stays between 3.3v -3.28v when the sensor is not working regardless of various instances of fuel and air variation .
The voltage can peak up to 5V at extreme lean condition and go as low as 2V when fully rich but stays around 3.28v -3.21v at idle condition which is totally a different rules u get in narrow band ones that you read about in books and YouTubes.
I will upload some live practical pids pix when I am less busy

baba I swear U r d best. i eventually got to understand d reason I was getting dt reading.
U r very correct on d current/voltage issue. regardless of wats happening i was always getting 3.299V. i don almost go wash d ECU for insyd omo o .... hehehe.... bro thanks again. based on dis knowledge i can further my research on d issue.

ok sir can I ask this. i noticed voltage on d downstream sensor is abt 0.4 - 0.7V. i believe this one is a narrowband sensor right? now my question is can a person use narrowband sensor to replace d upstream (wideband) sensor?

GAZZUZZ:
seems you are having some daunting issues here

Sorry iv been carried away with the rebuild repair - thread and I skipped this.

The 3.3 volts is a PCM generated representative voltage. It is not the actual output reading. That would be in milliamps. It will stay relatively steady as long as the mixture does not change rapidly.

An oxygen sensor will typically generate up to about 0.9 volts when the fuel mixture is rich and there is little unburned oxygen in the exhaust. When the mixture is lean, the sensor's output voltage will drop down to about 0.1 volts. ...

use a more advanced diagnostic equipment to see all the voltage readings.

Hope clear now?

yes boss I am... super grateful
e remain small make I wash d ECU insyd omo, petrol and water o hehehehe...

oluwaseunla:
ECM reporting a reading with sensor disconnected. Are you sure ECM is fine?

baba i no even understand. i decided to disconnect the o2 sensor after i noticed exactly d same voltage on d new one I got (3.299v). wat r d chances 2 separate sensors give exactly d same voltage?

GAZZUZZ:
mileage of car would be nice, also change to coolant, and stick with 20w50 engine oil and drain and refil every 3-5000km max.

Gazzuzz please i need your help with a diagnosis. Been doing little tune ups and maintenance on a 2001 toyota camry. Since the time i can remember, whenever I check the output voltage on from the upstream O2 sensor I have always gotten a reading of 3.xx V. However, checking online I saw that the normal voltage shoud be between 0.1V and 1.0V at worse. Yesterday i got another O2 sensor just to confim, i got the same reading. Now the crazy thing is when i disconected the O2 sensor. Check engine light came on (P1135 error code or so)... funny thing is ECM was still reporting reading of 3.xx V even while the sensor was disconnected. Pls how do I resolve this?

My ogasnin d house. please i need your help with a diagnosis. Been doing little tune ups and maintenance on a 2001 toyota camry. Since the time i can remember, whenever I check the output voltage from the upstream O2 sensor I have always gotten a reading of 3.xx V. However, checking online I saw that the normal voltage shoud be between 0.1V and 1.0V at worse. Yesterday i got another O2 sensor just to confim, i got the same reading. Now the crazy thing is when i disconnected the O2 sensor, though the Check engine light came on (P1135 error code or so)... funny thing is ECM was still reporting a reading of 3.xx V even while the sensor was disconnected. Pls how do I resolve this? Where do I start from?

Gazzuzz please i need your help with a diagnosis. Been doing little tune ups and maintenance on a 2001 toyota camry. Since the time i can remember, whenever I check the output voltage on from the upstream O2 sensor I have always gotten a reading of 3.xx V. However, checking online I saw that the normal voltage shoud be between 0.1V and 1.0V at worse. Yesterday i got another O2 sensor just to confim, i got the same reading. Now the crazy thing is when i disconected the O2 sensor. Check engine light came on (P1135 error code or so)... funny thing is ECM was still reporting reading of 3.xx V even while the sensor was disconnected. Pls how do I resolve this?

biko pls add me to the whatsapp group too. would love to learn more about the brand. tnx 07062222998

Pipedreams:
Three alternators didn't work cos the Kazeems don't know that there is something called voltage regulator. As the Kazeem installs the alternator and removes one head of the battery and the car dies, he simply says : "Ah bros this one no good go change am" I kept on going on a wide goose chase up and down. Very annoying. I have learnt my lessons sha

ok bro.... now I got it. bt U no tell us na. na so ppl go think say na all d alternator no good meanwhile na d Kazeems dey do wrong thing

GAZZUZZ:
80,500 is ringing in Uncles head as he slows down and calls dipo.......

he places a call to dipo.

Eng dipo! The light is back o! Just as I left your shop it came on o! This thing did not work...... The phone cuts off with dipo not saying a word.

Uncle comes to Nl to report dipo

lwkmd. d last line tho.. like say na NL fix d motor

GAZZUZZ:
Diportivo organises all the parts required and in 3hours he is done with Preliminary work. He shows Uncle on his high tech scanning device that the engine temp now cycles between 86-90 Dec celcius, show him the new fuel trim, V.S the old Fuel trims, Uncle is just nodding his head and remembering how he just parted with over 80,000 naira.

make God catch Deportivo say him magic no work... hehehehe.. continue bros

aninweze:

shift bros... na onli U wan chop dis popcorn?

thank God say na my friend Kamaru do dis one and nob me... na so U for spoil my CV again

GAZZUZZ:
Uncle then decides to Go with Eng Readone35L since he is alakowe.

Kamaru says his Hand is not there and refuses to do the Job.

Uncle and nephew leave the workshop without doing any Job and head for Diportivo's workshop.

dipo don enter am hehehehe

following

sir so U mean all 3 voltage regulators on all d 3 new alternators were all bad? hehehehe... m sorry bt d story neva conmplete. tell us d real truth boss...

Personally feel d problem was with d wiring and not the volatage regulators of all 3 of them.

bt all d same tnk God ur G is back... now lets smoke some rides for dinner hehehehe
@autologic... great job there bro...

GAZZUZZ:
not at all. If Price is reasonable it will be sold and vehicle will be replaced.

I do not take certain people seriously when they under-price a functional Vehicle.

alryt boss. happy sales. m pretty sure the lucky buyer is already calling...

bros nob d one we go come price am now U go latwr postpone am again ooooo

@OP u meant right hand drive shey? kindly change accordingly. cuz Righ Wheel Drive is confusing... happy sales

thebigkendo:
The person wey giviu this kind gift enh

hehehehe d person wan set am up shey? hihihi

1. like Gazzuzz suggested, what codes did it throw up initially? can U provide those details?
2. if u're not getting any, try a more comprehensive scanner and examine carefully details from the live data. (as suggested by AutoElectNG)
3. its possible the fuel pump has failed again after changing due to excess work being put on it.
check fuel pressure along fuel line and at the fuel rail to determine the state of the pump. U can clean d injectors if they are still good.(as Diportivo said)
4. when the electrician worked on it and the problem went away for 7days, what did he do? we need specific details.

Gazzuzz U no ask me why I weld am. u just come here to spoil my reputation... wc kind wahala be dis? sombori cannor do good work in pieces again?

autojosh kindly confirm that price properly o

princetom1:

guy.... where U go hide?

sir U mea. this ride is toks and u're selling for over a million? **rolling on d floor**

iz like U dinor see d pictures U posted o..
mqyb m d one dt is blind.
Gazzuzz Diportivo PrinceTom1 abeg coman see something oooo

buygala:
Na Peugeot Halla .....Limited edition

lwkmd.... u go fear na hehehehe

Mjxb1s:
Keep the calls coming

pls what is the current cost and year of software available?

diportivo:
Volvo no be anybody mate when it comes to strength


Toyota lovers tend to differ


ah, Toyota strong gan

bros you know say na our work. na toyota strong pass jor...

valarinz:

we know day you go show face na

OP why not consider telling whoever changes ur odometer to think properly before rolling back your odometer reading. all these cars with sixty sometin thousand odometer reading will onli make U an obvious liar... happy sales boss

sorry o OP... bt izit d same car available on jiji for 350k?

https:///cars/ad-11490550.html?utm_campaign=shareButton&utm_source=android_share&utm_medium=android-share-button&via=whatsapp

was interested in the car 2weeks back. was told it was already sold. is it still available?

woltom:
I dont do shaddy deals.

Not interested to sell to any car dealer who will use it to do bussiness overprice it here latter.

Interested people already inspecting and will pay the day i'll handover the key.

ok... happy sales.

woltom:
Please Contact me on whatsapp 08060643758

Will be available in 2 weeks once the replacement arrives

Wont give my account details to anyone before then

Thanks!

so whats d essence of this advert if you're not yet ready to sell until two weeks tym?