sorry Nissiparts my email is ragiftsolutions@yahoo.com

MadameU:
hi Nissiparts please could you send me the document so i can try to digest all the info, In the time being i have a RX300 lexus 2000 model and the fuel economy is nothing to write home about, the car gulps petrol like hell, got to know from a mechanic that there isnt a catalyst in the exhuast system. Im so tired of this problem that i need to do something FAST. Whats your advice buy another exhaust? or buy the oxygen thingy you spoke about? please pardon me o.Help a desperate sister out!

Hello Madame and others with this misconception, let me state categorically that the absence of a catalytic converter DOES NOT result in poor fuel economy. The only way a catalytic converter affects fuel economy negatively is if it is present and clogged.

arro:
I use hyundia santa fe 2004 3.5 L,v6 engine, i have issues with my manifold catalty converter, it was blocked but a panel bitter cleared it for me,i want to to replace it and i dont want to use the car untill its changed.i need help please.
U can mail me on:arrogroupsltd@gmail.com

Have you replaced it yet?

The pics have been forwarded as requested.

I've not changed it yet toooo

Sir,I removed 1 bad catalyst from my Xterra 2005 V6 Suv recently. The performance is good but notice high noise when i fire it with power and the noise fade away as the gear transmit. Pls any idea on what i can do to reduce this noise. Or should i replace the bad catalyst.

Thank you for ur time and help.

Are you saying you only observed the noise after removing the catalytic converter??

nissparts:
Are you saying you only observed the noise after removing the catalytic converter??

Yes after removing. Before removing the car was not moving.

sako28:


Yes after removing. Before removing the car was not moving.

Why was only one removed?
If it had gotten so clogged that the car was not moving before the removal, I hope you also checked the ignition coils.
They are usually affected as well.
Do you have any codes left?

debsty:
Hello nissparts,
Kindly send the pictoral procedure to debsty2001@yahoo.co.uk.
Thanks

me too. thanks .dbliss25@gmail.com

nissparts:
If anyone needs a pictorial description of this process, drop your email and I'll send it to you. It's a word document with pictures and too heavy to upload here.

Gud morn bro.
Pls send the pictorial description to makariosnpeanut@gmail.com
Do u still hv spacers available?
How much is it.

07 camry i4 engine.

Very informative. Keep up the good work

Sent

Oga, kindly send to viaziconcepts@gmail.com

Gm could u pls inbox with Honda Accord 96.....tnx. adekunar3@gmail.com

@Nissparts.. my RX 300 has similar issues and I have the changed the entire half of my Exhaust bt not the Catalyst as I was told it's still ok but it's just consuming fuel like a V12 engine. Pls is it the Catalyst foamy/net stuff in both pots that needs to be removed and the Oxygen sensor Spacer installed in both Sensors 1 and 2 or just one. Pls kindly send. the picture process description and how I can get the Spacers in Ikotun, Lagos. godwinonuka@yahoo.com

Send to me o abeg. godwinonuka@yahoo.com

Hi Nisspart.

I have a toyota corolla ce 2004 model that consumes alot of fuel. I buy full tank on monaday morning and it doesn't last till thursday evening and i work at VI and live at Ajah. I have colleagues with the same car who even reside after Ajah roundabout and their full tank last them for about 10 days. My mechanic has changed my catalyst but with all your detailed explanation on this thread, i just assumed that the catalyst was replaced with another bad tokunbo catalyst. Anyways, kindly give me your contact so that I can book an appointment. i know Iwaya very well so locating your garage shouldnt be difficult for me.

Best regards,
SEUNBOB.

SEUNBOB:
Hi Nisspart.

I have a toyota corolla ce 2004 model that consumes alot of fuel. I buy full tank on monaday morning and it doesn't last till thursday evening and i work at VI and live at Ajah. I have colleagues with the same car who even reside after Ajah roundabout and their full tank last them for about 10 days. My mechanic has changed my catalyst but with all your detailed explanation on this thread, i just assumed that the catalyst was replaced with another bad tokunbo catalyst. Anyways, kindly give me your contact so that I can book an appointment. i know Iwaya very well so locating your garage shouldnt be difficult for me.

Best regards,
SEUNBOB.

why don't u take the effort of scanning your car first before concluding that u have faulty catalyst cos there alot of factors that can be responsible for poor fuel mileage.

Godon1980:
@Nissparts.. my RX 300 has similar issues and I have the changed the entire half of my Exhaust bt not the Catalyst as I was told it's still ok but it's just consuming fuel like a V12 engine. Pls is it the Catalyst foamy/net stuff in both pots that needs to be removed and the Oxygen sensor Spacer installed in both Sensors 1 and 2 or just one. Pls kindly send. the picture process description and how I can get the Spacers in Ikotun, Lagos. godwinonuka@yahoo.com

Run a diagnotics on your car with the in a reputable workshop will pinpoint the particular issue responsible for poor fuel mileage .know the cause before throwing part to resolve issue.

nissparts:
Continued:

When your vehicle has a catalyst issue, there are 2 alternative fixes

1. Replace the catalyst with a brand new unit(Note I said brand new unit. If you attempt a tokunbo replacement, you'll either get one which has been filled with the "ladipo" element in the exhaust pot or you'll get one fresh off a used vehicle which may have also failed as well)

2. Hollow out the exhaust pots and rid them completely of the foamy/netty substance inside them. Now because your car's computer has been programmed to accept a certain level of exhaust fumes to be detected by the monitoring o2 sensor, the consequent rush of exhaust fumes which it will detect in the absence of the foamy/netty substance will signal a red flag and you will get catalyst codes. Therefore to complete the fix, you must install an oxygen sensor spacer to limit the fumes seen by the monitoring o2 sensor. See attached. The spacer is screwed into the oxygen sensor before finally being screwed into the exhaust.

Whichever route you take out of the 2 options, a "self-learn reset" (google it) must be carried out to get maximum benefits from the repair.

Cheers

Good Fix.

But will this Help in Eliminating:-
1) The excessive Fuel Usage
2) The Excessive Oil Loss and
3) The Drab movement or Loss of Power

nissparts:
If anyone needs a pictorial description of this process, drop your email and I'll send it to you. It's a word document with pictures and too heavy to upload here.

pls send to siempere4u@yahoo.com

Last message from nisspart was Sept 2015. Guess he is currently not around

nissparts:
Continued:

When your vehicle has a catalyst issue, there are 2 alternative fixe

2. Hollow out the exhaust pots and rid them completely of the foamy/netty substance inside them. Now because your car's computer has been programmed to accept a certain level of exhaust fumes to be detected by the monitoring o2 sensor, the consequent rush of exhaust fumes which it will detect in the absence of the foamy/netty substance will signal a red flag and you will get catalyst codes. Therefore to complete the fix, you must install an oxygen sensor spacer to limit the fumes seen by the monitoring o2 sensor. See attached. The spacer is screwed into the oxygen sensor before finally being screwed into the exhaust.

Whichever route you take out of the 2 options, a "self-learn reset" (google it) must be carried out to get maximum benefits from the repair.

Cheers

Rubbish!!!!! iam sure you have never heard of back pressure effect before .No matter of well you deceive the computer,absence of catalyst will will not give the required back pressure and you car will still be consuming fuel .
if your catalyst is missing you replace with another catalyst.

Can i get the doc on legendak472000@yahoo.com

honmusa:

Rubbish!!!!! iam sure you have never heard of back pressure effect before .No matter of well you deceive the computer,absence of catalyst will will not give the required back pressure and you car will still be consuming fuel .
if your catalyst is missing you replace with another catalyst.

Loll!!!!

Please I need oxygen sensor spacer. My email is olufunsoolaojo@yahoo.com.

nissparts:
Continued:

When your vehicle has a catalyst issue, there are 2 alternative fixes

1. Replace the catalyst with a brand new unit(Note I said brand new unit. If you attempt a tokunbo replacement, you'll either get one which has been filled with the "ladipo" element in the exhaust pot or you'll get one fresh off a used vehicle which may have also failed as well)

2. Hollow out the exhaust pots and rid them completely of the foamy/netty substance inside them. Now because your car's computer has been programmed to accept a certain level of exhaust fumes to be detected by the monitoring o2 sensor, the consequent rush of exhaust fumes which it will detect in the absence of the foamy/netty substance will signal a red flag and you will get catalyst codes. Therefore to complete the fix, you must install an oxygen sensor spacer to limit the fumes seen by the monitoring o2 sensor. See attached. The spacer is screwed into the oxygen sensor before finally being screwed into the exhaust.

Whichever route you take out of the 2 options, a "self-learn reset" (google it) must be carried out to get maximum benefits from the repair.

Cheers

Dude!
As we type now, I have a bill of over 100k waiting for me at the mechanic.
It happened that last Tuesday, the car all of a sudden started stalling with no prior incident, I managed it to the mechanic, with intermittent stop and starts on the way.
Mech swung into action after scanning, happened that the blocked cat has already created heated/broken valve, spark plugs, gaskets, distribution coil and all kinds of issues.
It took him about a week to dismantle all these and listed items for purchase and bill. I gave him 80k to commence work, on my way there now to get updates as he promised the car will be roaring back to life this evening.

I'm especially happy with the idea of using an O2 sensor spacer after hollowing out the cat and welding back as revealed in this thread. I'll discuss it with the Mech when I get there, as I can't imagine increasing fuel consumption at this critical time.

Hello every one, how are you?

cecegorz:


Dude!
As we type now, I have a bill of over 100k waiting for me at the mechanic.
It happened that last Tuesday, the car all of a sudden started stalling with no prior incident, I managed it to the mechanic, with intermittent stop and starts on the way.
Mech swung into action after scanning, happened that the blocked cat has already created heated/broken valve, spark plugs, gaskets, distribution coil and all kinds of issues.
It took him about a week to dismantle all these and listed items for purchase and bill. I gave him 80k to commence work, on my way there now to get updates as he promised the car will be roaring back to life this evening.

I'm especially happy with the idea of using an O2 sensor spacer after hollowing out the cat and welding back as revealed in this thread. I'll ldiscuss it with the Mech when I get there, as I can't imagine increasing fuel consumption at this critical time.

How far? Is it fixed?

Hello Nissparts, I have a Nissan Pathfinder 2005 SUV. No major issues, guzzles a lot of fuel (V6 wahala i guess), works just fine. 'Service Engine Soon' light came on recently and upon scanning it gave the following fault codes; P0420, P0430. My internet searches led me here. It doesn't jerk, no issues with hill climbing, accelerates easily, and guzzles fuel. What do you advise?

nissparts:


How far? Is it fixed?

Sure bro. I gave a detailed account in this thread https://www.nairaland.com/3350344/consequences-failed-catalytic-converters#49441966

You an take a look at the other components the damage affected as listed in the invoice.