I have a 2006 Honda Ridgeline and it was giving me a Service Engine light and threw a PO420 code. I listened to your video and drove my car for about an hour and then revved the engine a few times at my final destination. I'm glad to say that it worked! The code cleared and I will do this regularly to keep my cat clear. Thank you for this video.
This really works. After too many short journeys, delicate driving and a period on inactivity, my VW Touran displayed a flashing glow plug fault followed by an emissions control/ engine management fault, subsequently the car went into limp mode. Getting the engine up to temperature and turning the ignition off and back on took me out of limp mode and left me with just the emission warning light. 20mins plus of high revs, in my case 4,000/4,500 rpms in third gear fixed all warning lights once the car was re-started after my trip. Peter Finn, top man! :)
'Italian tune-up!' No, really, folks, this method will work because the converter is running hotter at higher RPM's and therefore burning out all the carbon build up. It also 'blows out' the motor, meaning the crud on the valves and combustion chambers gets burned out at the same time.
In a tractor you have to do a regeneration to clear the exhaust and you park the tractor and it revs at high rpms & temp for about 45mins and it clears the exhaust. So it makes sense. Look up how a regen works on a tractor
New subscriber here, Peter. I came here looking for help for my 2010 Nissan Maxima with 97,000 miles on it. It was at a Nissan dealership service dept. for over 2 months, idling at 4000 rpm. That is not even why I took the car in. I took it in because the crankshaft sensor needed replacing. THEN, it began to idle at 4000 rpm! They "think" they fixed that problem, although they aren't really sure how they did it. But, the "service engine" light came on on the drive home. Immediately took it back and they said the code was for both catalytic converters! Going to try your method and see what happens. Thanks for sharing your "know-how" with us!
Use seafoam it worked very well on my Nissan Xterra v6, ten years ago the ecl came on and I failed the smog, the guy told me I need new cats which costs me $1000+ The next day I bought a can of seafoam and I didn't expect anything but two days later surprisingly the code disappeared then i passed the smog with flying colors!
Omg.. it cant demage your engine IF it's properly maintained and your cooling system is good. In Germany on highway you drive at 160km/h so its in 5th gear at 4-5k rpm.
No, it can't damage your engine if it's kept below the redline & your engine is otherwise working properly. It just scares people because they're not used to hearing the engine so loud, so they assume it's bad and stressing the engine. Most cars auto-transmission are designed/programmed to stay below 3000rpm to keep it quiet, but this never allows it to get hot enough in the engine to burn off carbon and clean the cat. It's like cleaning heat-cleaning an oven.
Listen to what he is saying higher revs makes the cat hotter Wich expands it and blows out all the soot out of the cat when the cat is cleaner the car will run cleaner with less emissions
Is it okay to go 10 minutes one way and 10 minutes back? Or do you have to go 20 minutes straight? Seems like the catalytic converter would not cool off. Just turning around there at the end.
Hi Peter, so the high-revs & lacquer thinner did not work, so I just replaced the catalytic converter (myself) & now all is good (no more CEL) & more power & mpg on the 2009 2.4L Camry w/ 357,000 miles. Q: When you down-shift w/ automatic using shift-lever; should you give more gas-pedal as you down-shift, like w/manual-transmission, so the revs match?
So, Peter if the camry runs great, even though I have p0420 code, does this mean I should just drive at high revs more frequently and eventually it should clear?
Okay will do...but how to know when high-revs isn't helping and it just needs a new catalytic converter? Have you cleared a P0420 light from just high revs? Thanks
my comment was: you will ruin engine and transmission which worth thousands of dollars to clean a catalytic converter that worthes 200$ maybe or less! stupid idea !!
Well, that's what the 'red-line' is for... keep it out of redline and if your AT is otherwise healthy, it won't overheat... between 4-5000 rpm should not overheat anything and your engine temp may actually get a little cooler from the higher exhaust flow
How can I check if my AT is over heating?. I have an 03 civic with 170000 miles on it. Can't risk to slip the transmission. My OBDII scanner doesn't support transmission temp.
@@PeterFinnTheCarDoctor Thank you for your reply. When I scan my car with the scan machine , it says that the catalyst is not passed. Cause I want to take it to kasatus. Please what should I do to make it to work? Kiitos
@@PeterFinnTheCarDoctor Hello Peter, I drove my car on 4 to 5k rpm today for 20 minutes and the catalyst was working but after 5 minutes I stopped the engine and restart it again, the scanner says the catalyst is not working. Please what could be the problem and what should I do to solve the problem? Kiitos
+Peter Finn I have an automatic. Can I drive in 1st (low gear) at a high speed to have the same effect? What's the fastest I can go in 1st gear in an automatic to clean my catalytic converter, in which it's still safe for my transmission?
I assume the higher the gear the better as you want the engine under load. Could be an issue depending on transmission type. My car only has low, drive and overdrive. In other words 1st, 3rd and 4th gear are my only choices. I would have to do this in drive because overdrive would be going way to fast and low would be too slow with less load.
Just high revs ain't help you that much. You also need a decent load which means (depending on your car) high speeds or several strong accelerations where you can rev the first 3 gears to redline. This method like in the video with high revs and low load is just heating up your valves for nothing :S
No, won't hurt the transmission. That's more likely to happen when downshifting in order to engine-brake - or revving the car in neutral while stopped and then putting it in drive like many idiots do -- not for accelerating or just maintaining a higher-than-normal rpm.
true my comment for him was: you will ruin engine and transmission which worth thousands of dollars to clean a catalytic converter that worthes 200$ maybe or less! stupid idea !!
Is there any reason why you need to run high revs while driving? Can I have it in neutral in my driveway at 4-5k for half hour and get the same results?? Thank you
Cats don't fully fire off till 500-800F temperature and can run over 1500F with combustible gasses burning in them. The RPM's is really the only way to heat the thing up beyond 500F when it isn't burning on its own (clogged or silted in where the noble metals used in them cannot contact the super heated air/leftover fuel/combustible gasses). This heating causes expansion during this process and contraction after it cools separates the clog/silt from the media and burns any hydrocarbons or oil in the clog/silt thus shrinking them in size. After that process of cooling some fast high revs on the next start up should push some of the clogs free allowing the noble metals to contact the air flow again so it can then operate as intended thus heating up to over 1000F and possibly heating still clogged areas and helping clean them more. If the vehicle is burning oil it will clog quickly again. I wouldn't advise 20minutes at 4000rpm in the driveway to many things can go wrong. 3000 rpm down the road for 20minute trip should do the trick and be easier on the engine and cooling system.
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I have a 2006 Honda Ridgeline and it was giving me a Service Engine light and threw a PO420 code. I listened to your video and drove my car for about an hour and then revved the engine a few times at my final destination. I'm glad to say that it worked! The code cleared and I will do this regularly to keep my cat clear. Thank you for this video.
Thanks Sir. 🙂
still good? how long did it last?
This really works. After too many short journeys, delicate driving and a period on inactivity, my VW Touran displayed a flashing glow plug fault followed by an emissions control/ engine management fault, subsequently the car went into limp mode. Getting the engine up to temperature and turning the ignition off and back on took me out of limp mode and left me with just the emission warning light. 20mins plus of high revs, in my case 4,000/4,500 rpms in third gear fixed all warning lights once the car was re-started after my trip. Peter Finn, top man! :)
Thanks for feedback.:-)
I also have a VW Jetta with the warning light. I will give this a go and fingers crossed it solves it!!!
you will ruin engine and transmission which worth thousands of dollars to clean a catalytic converter that worthes 200$ maybe or less! stupid idea !
'Italian tune-up!' No, really, folks, this method will work because the converter is running hotter at higher RPM's and therefore burning out all the carbon build up. It also 'blows out' the motor, meaning the crud on the valves and combustion chambers gets burned out at the same time.
Thanks for comment. :-)
Only sounds dangerous to me. I'm not saying this is wrong. I'm just scared to do this. Those that get good results good.
In a tractor you have to do a regeneration to clear the exhaust and you park the tractor and it revs at high rpms & temp for about 45mins and it clears the exhaust. So it makes sense. Look up how a regen works on a tractor
Purging by heat... I have a 2001 3.8 ...will her seals survive the engine temps. .. Drink lots of fluids
Thank you. My commute is very short. Now I have an idea of how to avoid a premature problem with the converter.
Thanks Sir. 👍
you will ruin engine and transmission which worth thousands of dollars to clean a catalytic converter that worthes 200$ maybe or less! stupid idea !
New subscriber here, Peter. I came here looking for help for my 2010 Nissan Maxima with 97,000 miles on it. It was at a Nissan dealership service dept. for over 2 months, idling at 4000 rpm. That is not even why I took the car in. I took it in because the crankshaft sensor needed replacing. THEN, it began to idle at 4000 rpm! They "think" they fixed that problem, although they aren't really sure how they did it. But, the "service engine" light came on on the drive home. Immediately took it back and they said the code was for both catalytic converters! Going to try your method and see what happens. Thanks for sharing your "know-how" with us!
Ok and Thanks !
Use seafoam it worked very well on my Nissan Xterra v6, ten years ago the ecl came on and I failed the smog, the guy told me I need new cats which costs me $1000+
The next day I bought a can of seafoam and I didn't expect anything but two days later surprisingly the code disappeared then i passed the smog with flying colors!
Can you rev the engine on neutral or park?
The old Italian toon up good stuff
I wish I can speak as Careful as you do!
Thanks for info. :-)
Good idea... but be careful not to cut the timing belt if the car is too old & timimg belt not been changed
Can this damage the engine? 20 mins does not seem long but seems to put a strain on the engine at high revs.
Of course. There are always risks.
This shit will pop your motor
No good my friend 😬
Omg.. it cant demage your engine IF it's properly maintained and your cooling system is good. In Germany on highway you drive at 160km/h so its in 5th gear at 4-5k rpm.
Decatur Durst Live shity engine then..
No, it can't damage your engine if it's kept below the redline & your engine is otherwise working properly. It just scares people because they're not used to hearing the engine so loud, so they assume it's bad and stressing the engine. Most cars auto-transmission are designed/programmed to stay below 3000rpm to keep it quiet, but this never allows it to get hot enough in the engine to burn off carbon and clean the cat. It's like cleaning heat-cleaning an oven.
so basically by creating more pollution one passes the emissions test ...do you see where i going with this
You have to do the same with a dpf filter. It's all bullshit.
Listen to what he is saying higher revs makes the cat hotter Wich expands it and blows out all the soot out of the cat when the cat is cleaner the car will run cleaner with less emissions
Is it okay to go 10 minutes one way and 10 minutes back? Or do you have to go 20 minutes straight? Seems like the catalytic converter would not cool off. Just turning around there at the end.
Ok
do you have any suggestion for an automatic car? Maybe do more revs every day
Turn off overdrive and drive on highway. That should get revs into the 4000 rpm's.
Good comment, thanks 😃👍
thank you very much
Red line each day, keeps the mechanic away!!
Yes, Thank You. 👍
This is very important and accurate information
you will ruin engine and transmission which worth thousands of dollars to clean a catalytic converter that worthes 200$ maybe or less! stupid idea !
Hi Peter, so the high-revs & lacquer thinner did not work, so I just replaced the catalytic converter (myself) & now all is good (no more CEL) & more power & mpg on the 2009 2.4L Camry w/ 357,000 miles.
Q:
When you down-shift w/ automatic using shift-lever; should you give more gas-pedal as you down-shift, like w/manual-transmission, so the revs match?
Hi and Thanks. Please drive sometimes within Weekly with gear 2 and give revs about 5000 rpm one minute time. It cleans cat.
Does high-revs also clean carbon from engine and valves?
Yes
Just straight pipe it or run high octane gass.
So, Peter if the camry runs great, even though I have p0420 code, does this mean I should just drive at high revs more frequently and eventually it should clear?
Yes, more revs every day !
Okay will do...but how to know when high-revs isn't helping and it just needs a new catalytic converter?
Have you cleared a P0420 light from just high revs? Thanks
Epoxy
Good video bro 👍
Appreciate it
That is out of reality concepts
my comment was:
you will ruin engine and transmission which worth thousands of dollars to clean a catalytic converter that worthes 200$ maybe or less! stupid idea !!
katalitic corvortor
It works but overheating your transmision
Thanks. :-)
Well, that's what the 'red-line' is for... keep it out of redline and if your AT is otherwise healthy, it won't overheat... between 4-5000 rpm should not overheat anything and your engine temp may actually get a little cooler from the higher exhaust flow
How can I check if my AT is over heating?. I have an 03 civic with 170000 miles on it. Can't risk to slip the transmission. My OBDII scanner doesn't support transmission temp.
Hei Peter, how do I drive 4000 or 5000 rpm with automatic gear D, 2, L Drive gear? What can of oil do I need to buy from kauppa. Kiitos.
2
@@PeterFinnTheCarDoctor Thank you for your reply. When I scan my car with the scan machine , it says that the catalyst is not passed. Cause I want to take it to kasatus. Please what should I do to make it to work? Kiitos
@@PeterFinnTheCarDoctor Hello Peter, I drove my car on 4 to 5k rpm today for 20 minutes and the catalyst was working but after 5 minutes I stopped the engine and restart it again, the scanner says the catalyst is not working. Please what could be the problem and what should I do to solve the problem? Kiitos
Hey bro. If you get a speeding ticket your gonna wish u got a new cat imstead of this lol!!
Hello, I drive always in closed Speed tracks. :-)
Just dive with 3rd or 2nd gear...
It’s in km/h not mph
Speed ticket still cheaper than a new cat ;) and probably more fun.
LOL
+Peter Finn I have an automatic. Can I drive in 1st (low gear) at a high speed to have the same effect? What's the fastest I can go in 1st gear in an automatic to clean my catalytic converter, in which it's still safe for my transmission?
Yes, you can drive with gear 1.
Peter Finn can u do it neutral
Use whatever gear is necessary to keep engine speed between 4 & 5000 rpm
@@nickcruz1719 It's more effective when the engine is under load. 4000 rpm in neutral is just a touch of throttle.
Use e85 while doing it.
Can i do this in “Park”?
I assume the higher the gear the better as you want the engine under load. Could be an issue depending on transmission type. My car only has low, drive and overdrive. In other words 1st, 3rd and 4th gear are my only choices. I would have to do this in drive because overdrive would be going way to fast and low would be too slow with less load.
you will ruin engine and transmission which worth thousands of dollars to clean a catalytic converter that worthes 200$ maybe or less! stupid idea!!!
Disconnect a fuel injector for 50 miles on the highway each bank.
Just high revs ain't help you that much. You also need a decent load which means (depending on your car) high speeds or several strong accelerations where you can rev the first 3 gears to redline. This method like in the video with high revs and low load is just heating up your valves for nothing :S
Nice
and where are the proofs that the catalyst is clean? you are going to kill the transmission
No, won't hurt the transmission. That's more likely to happen when downshifting in order to engine-brake - or revving the car in neutral while stopped and then putting it in drive like many idiots do -- not for accelerating or just maintaining a higher-than-normal rpm.
true
my comment for him was:
you will ruin engine and transmission which worth thousands of dollars to clean a catalytic converter that worthes 200$ maybe or less! stupid idea !!
lololol I'm sure manufacturers put that red line there just to scare people into not racing...
Is there any reason why you need to run high revs while driving? Can I have it in neutral in my driveway at 4-5k for half hour and get the same results??
Thank you
High revs are good for engine.
Peter Finn the question is can I just sit in neutral in my
Driveway at 4K revs instead of taking it on the road?
Yes You can
Thanks peter
Cats don't fully fire off till 500-800F temperature and can run over 1500F with combustible gasses burning in them. The RPM's is really the only way to heat the thing up beyond 500F when it isn't burning on its own (clogged or silted in where the noble metals used in them cannot contact the super heated air/leftover fuel/combustible gasses). This heating causes expansion during this process and contraction after it cools separates the clog/silt from the media and burns any hydrocarbons or oil in the clog/silt thus shrinking them in size. After that process of cooling some fast high revs on the next start up should push some of the clogs free allowing the noble metals to contact the air flow again so it can then operate as intended thus heating up to over 1000F and possibly heating still clogged areas and helping clean them more. If the vehicle is burning oil it will clog quickly again. I wouldn't advise 20minutes at 4000rpm in the driveway to many things can go wrong. 3000 rpm down the road for 20minute trip should do the trick and be easier on the engine and cooling system.
Simples!
Thanks
and there you blow your gaskit and other problems . better to get a new one ..
Thanks. Good feedback. :-)
Will this really work?
Yes, chance is more then 60% to success.
you will ruin engine and transmission which worth thousands of dollars to clean a catalytic converter that worthes 200$ maybe or less! stupid idea !!
This is how they fix in russia. We floor the bit- -
Good point 👍
Tried this on my Yugo and spun a bearing.😞
Ok
You need to warm the car before driving at high revs
Lol
you will ruin engine and transmission which worth thousands of dollars to clean a catalytic converter that worthes 200$ maybe or less! stupid idea!
240 on dash 👀👀👀what car is that
Toyota Camry year 2004
It's kph not mph. That's why is says 240.
its km/h 😂
you will ruin engine and transmission which worth thousands of dollars to clean a catalytic converter that worthes 200$ maybe or less! stupid idea !!
"Get out of heree"..
Thanks for your info. :-)
😢😢 English is abit off 😩😩
But he is bilingual, so he is doing better than most people...
Nice