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Nairaland Forum / Nairaland / General / Car Talk / Driving A Car Without Catalytic Converter (49125 Views)
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Re: Driving A Car Without Catalytic Converter by GAZZUZZ(m): 1:10pm On Dec 24, 2017 |
obekediamondfuto: my peugeot 406 I4 worked better without a catalyst (better fuel efficiency) |
Re: Driving A Car Without Catalytic Converter by obekediamondfuto(m): 1:25pm On Dec 24, 2017 |
GAZZUZZ: let's experiment it on OUR evil spirit, back then in otown.... didnt know sh...t about cars, sent my car for servicing and car came back sounding different. drove it home (5mins) fuel entered reserve from a lil less than 1/4 tank. beginning of woes........ summary, Mech stole my cat con and vehicle guzzles fuel like nothing I've seen before. u don't want to know how that story ended |
Re: Driving A Car Without Catalytic Converter by Nobody: 3:28pm On Dec 24, 2017 |
Coldplay007:
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Re: Driving A Car Without Catalytic Converter by Nobody: 3:31pm On Dec 24, 2017 |
obekediamondfuto: Cat delete has no significant impact on fuel economy as long as you use spacers. |
Re: Driving A Car Without Catalytic Converter by captainking(m): 4:10pm On Dec 24, 2017 |
GAZZUZZ:haha...i believe he is one of the elders here.. So I thought... compliments sir |
Re: Driving A Car Without Catalytic Converter by obekediamondfuto(m): 5:20pm On Dec 24, 2017 |
badebillions: as long as u use spacers right, exactly my point! but that is not the debate, the debate is cat delete has no impact on mpg since the post cat sensor monitors cat efficiency, but its not entirely true and I'm speaking from first hand experience that downstream sensor is used (in modern vehicles) as a checksum for the upstream sensor so if u delete cat then u have to trick the ecu by using spacers. I think u get my point. in international forums u see experts arguing this single issue like its one hell of a deal albeit, with solid proof of live pids and data of stft and ltft. some even have a simulator for the downstream sensor and modify its values accordingly to see the effect on the trim values and surprisingly if affects FT. in some rare cases like mine its affects it up to 25%+. well I wouldn't argue with the bosses tho, cos they have had years of experience with several brands..…. some even mistakenly pour origin in the cat to completely finish it...... but my point is, it happened to me! I installed cat for an exorbitant price and I'm not even sure if its not my cat.... but vehicle stabilized immediately... if I knew what I knew now I'd have checked for live data
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Re: Driving A Car Without Catalytic Converter by chukel(m): 9:01pm On Dec 24, 2017 |
Right question is which catalyst are you guys talking about. If it's the one under the vehicle, then no negative effect on fuel consumption. In fact if it was clogged prior to removal, you will notice improved fuel economy after removal. If it's the other one just behind the radiator, then removal may affect fuel consumption. |
Re: Driving A Car Without Catalytic Converter by chukel(m): 9:05pm On Dec 24, 2017 |
obekediamondfuto:the issue may not have been removal of the catalyst. They usually remove and replace with wire mesh/gauze which restricts exhaust air. This is actually what caused the increased fuel consumption and not removal of a good catalyst converter. |
Re: Driving A Car Without Catalytic Converter by Nobody: 9:08pm On Dec 24, 2017 |
chukel:You can run a straight pipe. |
Re: Driving A Car Without Catalytic Converter by obekediamondfuto(m): 6:40am On Dec 25, 2017 |
chukel: thank you so much, that's the one I'm referring to! the one behind the radiator is the actual cat converter IMHO hence the names of the different sensors: pre and post cat! but y is it so damn expensive? |
Re: Driving A Car Without Catalytic Converter by Nobody: 7:18am On Dec 25, 2017 |
obekediamondfuto:A lil bit more but with attendant increase in HP. |
Re: Driving A Car Without Catalytic Converter by nurey(m): 7:18am On Dec 25, 2017 |
obekediamondfuto: It is made from precious metals such as platinum, palladium, rhodium, magnesium and some other metals like that. Imagine how much you did sell a gram of those metals |
Re: Driving A Car Without Catalytic Converter by bravolad(m): 7:26am On Dec 25, 2017 |
chukel: That's the bank 2 therefore, there will be drop in performance and one major effect is decreased mpg. |
Re: Driving A Car Without Catalytic Converter by obekediamondfuto(m): 1:50pm On Dec 25, 2017 |
bravolad: exactly |
Re: Driving A Car Without Catalytic Converter by obekediamondfuto(m): 1:51pm On Dec 25, 2017 |
bravolad: exactly! |
Re: Driving A Car Without Catalytic Converter by erico2k2(m): 5:27pm On Dec 25, 2017 |
chukel:You seriously need to upgrade or update ur Auto knowledge . U scored 2/100 there |
Re: Driving A Car Without Catalytic Converter by erico2k2(m): 5:32pm On Dec 25, 2017 |
obekediamondfuto:So when the Cat was removed what did the mechanic replace it ? |
Re: Driving A Car Without Catalytic Converter by chukel(m): 5:34pm On Dec 25, 2017 |
erico2k2:if so, please educate me and others who share same ideology here. |
Re: Driving A Car Without Catalytic Converter by erico2k2(m): 5:40pm On Dec 25, 2017 |
chukel:Well you ought to have taken into account how the O2 sensor will feed yoyr ECU with data . The bank 2 sensor compares readings from the other O2 sensor and this gets feed back to the ecu . This determine the Richness of fuel or oxygen . |
Re: Driving A Car Without Catalytic Converter by chukel(m): 5:43pm On Dec 25, 2017 |
erico2k2:that's where I have issue with you. Is there a post O2 sensor for the cat under the car? Car in question is 03 camry |
Re: Driving A Car Without Catalytic Converter by chukel(m): 5:50pm On Dec 25, 2017 |
erico2k2:I think you should go back and read my comment well. Bringing in bank 2 means you are already talking V6. If you noticed I avoided using terms bank 1 bank 2 to make it easy to a non car savvy person to understand. That cat behind the radiator can be bank 1 or bank2 depending on how many cylinder the car has. My question is, is there a sensor after the cat under the car. I want to learn. |
Re: Driving A Car Without Catalytic Converter by erico2k2(m): 5:53pm On Dec 25, 2017 |
chukel:Yes therr is a sensor . V6 engines with two cats ha e four O2 sensors |
Re: Driving A Car Without Catalytic Converter by chukel(m): 5:56pm On Dec 25, 2017 |
erico2k2:you still don't get me. And V6 has a 3 way cat system in Toyota. The third cat is under the car. Gazzuz please need the pic
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Re: Driving A Car Without Catalytic Converter by erico2k2(m): 6:21pm On Dec 25, 2017 |
chukel:Three Cat converters ? What's the 3rd for ? In yoyr pic up there it only shows two cat converters . The banks are two 1 and 2. |
Re: Driving A Car Without Catalytic Converter by chukel(m): 6:21pm On Dec 25, 2017 |
So, is there a sensor after the last catalyst under the car? |
Re: Driving A Car Without Catalytic Converter by chukel(m): 6:25pm On Dec 25, 2017 |
erico2k2:u should know this naa. U see the TWC? Three way catalytic converter. That's the 3rd. Solely for emission. Environmental protection. |
Re: Driving A Car Without Catalytic Converter by erico2k2(m): 6:54pm On Dec 25, 2017 |
chukel:The third box is not a cat covert .even you diagram does not say so.however therr are 4 sensors in your diagram . Banks 1 amd 2 one is left the other right I'm waiting to see a diagram with 3 cat convert |
Re: Driving A Car Without Catalytic Converter by chukel(m): 7:15pm On Dec 25, 2017 |
erico2k2:stop dragging. If it's not a catalytic converter, pls what is it. Read up Toyota exhaust system with special reference to the catalytic converters. My diagram also didn't mention any catalyst. That diagram centered on the sensors. Check up the meaning of TWC with respect to Toyota exhaust system. PS. I am still learning. But I want to learn well with evidence |
Re: Driving A Car Without Catalytic Converter by erico2k2(m): 7:33pm On Dec 25, 2017 |
chukel:Ok ask yourself this . Why would therr be a filter after a filter ? What you see there is a middle box . Most cars have it . |
Re: Driving A Car Without Catalytic Converter by erico2k2(m): 7:55pm On Dec 25, 2017 |
chukel:Oh I see why you are getting Confused . Now the TWC does not mean three different cat boxes rather a single Vat box that uses three process to purify fumes coming out of car. Reduction+Horne Combe +Oxidation all in one box to bring out Nxt COS and H2O |
Re: Driving A Car Without Catalytic Converter by GAZZUZZ(m): 7:59pm On Dec 25, 2017 |
friendly fire |
Re: Driving A Car Without Catalytic Converter by kingreign(m): 8:03pm On Dec 25, 2017 |
erico2k2: It is a catalytic converter. Starting from 98, Toyota implemented three way catalytic converters in their California state sold cars. One on each bank and a third to further 'cleanse' the exhaust gas. |
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