Mazda P049B EGR ‘B’ insufficient flow detected. Exhaust pressure pipe replacement

[@tmautosstaustellcornwall5882]

Hi Peter , on these and on a lot of Renault and Nissans with the upstream exhaust pressures sensor 1.5dci 1.6 2.0dci this pipe gets blocked - I get a push bike brake cable in a drill and spray brake cleaner down pipe1st and use the drill and cable down pipe and it will clean the soot out - a lot quicker job , and very satisfying when it’s clears . Just done it on are own Quasqui drives beautiful now . Interestingly no fault code even with blocked pipe on mine . Great videos

[@kennedysgarage3281]

They can be funny and give no faults for it being semi or fully blocked. I use heat & compressed air lately to clear these pipes. I haven’t ever had much success clearing them on the car before that. I show it in my latest video. Well done though mate 💪💪💪

[@jamesward5721]

My daily chariot has the grand total of zero sensors. None. Not one. It's the car equivalent of a Nokia 6310. It has points & a manual choke - for exactly the reasons highlighted in this cartoon. I fix peoples cars, I have no desire to fix my own when I finish work. Great job as always Mr Kennedy. Edit the title btw - 48 ought be 49.

[@kennedysgarage3281]

Oooh James, that was very well spotted. I’m barking on everyday about attention to detail, to all the lads in the garage. But I’m impressed with that 👏👏👏👏 What is this chariot, sound great 🤔 Wouldn’t it be nice to be still dealing with that kinda stuff everyday 🙃🙃

[@jamesward5721]

@@kennedysgarage3281 Bought a 1987 Renault 9 that has 60k, was garaged from day 1, is rust free, with the 1.4 chain driven (no belt) Volvo derived engine, Peter. Seeing as rust is our business, I gave it the full works, top to bottom. Owner had given up on it as he'd been everywhere trying to get the brakes fixed to no avail - I'm owner No. 2.

[@kennedysgarage3281]

@@jamesward5721 wow, that’s pretty cool James. Are you based in Ireland??

[@jamesward5721]

@@kennedysgarage3281 Up in Kildare Peter. A fellow Paddy. We do the brake jobs nobody wants to do, so fixing the Ren 9 brakes took about, ohh, 20 minutes, despite no proper parts being available. I kid you not - owner had reciepts from 5 garages that had tried and given up. I despair now & then. The simple hard stuff is becoming a lost art.

[@kennedysgarage3281]

@@jamesward5721 that is actually a true fact, what we classify as simple some people really struggle with. Have ye ever done any Old Ford’s?? I have a mk1 needing welding

[@bastogne315]

Just did the rear shocks on my 16 mazda 3. They were fused to the bottom mounting point. Had to be cut off. Wasn't like that with the 2010 model. Love the show Peter ❤❤❤

[@bastogne315]

Gonna do the lower control arm later..if this poxy wind dies down.😂

[@kennedysgarage3281]

@@bastogne315 your keeping yourself busy anyway 😂😂😂😂 I’m glad you enjoy the cartoons & thank you so much for all your support 🙏🙏🙏

[@Mad4Motors_]

I meant to ring you several times Peter you’re still putting out the great stuff

[@kennedysgarage3281]

Hey Eric, still rattling away. Fantastic to know you watch some of my content. How is your channel going??

[@Mad4Motors_]

Same as Peter working away at it, enjoy the Xmas must chat in the new year

[@kennedysgarage3281]

@@Mad4Motors_ sounds good, happy Christmas to you too 🎄🎄🎄

[@ecomaxtuning2413]

Thankyou for the great videos, so helpful 💪😎

[@kennedysgarage3281]

Thank you very much 🙏🙏🙏 Apologies for the delayed response, I fell a bit behind on my comments. Happy Christmas 🎄 🎄

[@sohailrabani]

These mazda vehicles are really pain 😫 it takes too much time to diagnose and fix and customers think mechenic is trying to make money 😢...cheers sir thx for sharing info

[@kennedysgarage3281]

That is a very common occurrence on today’s cars. Folk think that they are easy but the reality is because of so much stuff jammed under the bonnet life can be a real challenge. Unfortunately that’s the business we are in 🤷🏼‍♂️🤷🏼‍♂️🤷🏼‍♂️

[@antodenn381]

More helpful tips 😊

[@kennedysgarage3281]

This exhaust pressure pipe is really common to block & it throws up weird code like airflow & egr, which could lead a lad up the garden path. Cheers Anto 😉😉

[@larkehoe6716]

another hand vlog peter, see this same fault alot on nissan/renault k9k from 12 onwards... and a pain to sort depending on how blocked and or how handy you are with the drill and some window regulator cable... hahaha...

[@kennedysgarage3281]

Compressed air & a handy little blow torch for heating them works wonders too. Always some little tricks to be learnt in this trade Lar 😉👍👍👍

[@the_retired_mechanic]

Peter assume the parts not too expensive for a mazda however would you not endorse clearing the pipe with wire or maybe slowly soaking the carbon out.?

[@kennedysgarage3281]

Hey Chris, I have struggled clearing these kinda pipes for years. I’ve tried soaking I them but it does take 24 to 48 hours to work. I’ve also tried the windscreen wire, handbrake cable & window regulator cable. But in real life they don’t work if the carbon is hardened. I could pretend it does for camera if I wanted but it really doesn’t without a huge struggle. The pipe is an upgraded one and cost around €80. It just makes life easier. Heat and compressed air is the best way to clear them if ever needed 😉

[@mulakodeanmukelabai791]

Your knowlesge and videos are amazing 🚀🚀🚀 I'm hooked on your videos on day one of finding your channel! New fan here who checked out your channel based on a comment from another channel about your incredible work! Do you have any suggestions for an expert in England who's at least half as good as you? The best way to maintain cars is definitely by having them serviced by experts like you.

[@kennedysgarage3281]

Thank you very much, that is very kind of you. I’m delighted you enjoy some of my content. I am finding the same, familiarity on certain vehicles just makes them so much easier to maintain. Unfortunately I don’t know anyone that like working on Mazda’s in England or Ireland for that matter. I think they are a great car but every other mechanic hates them 🤷🏼‍♂️🤷🏼‍♂️🤷🏼‍♂️

[@dimitrisdimitris2668]

Thanks for the video, do you know if this solution also works for the MAZDA 1.8 SKYACTIVE D? It gives me exactly the same problem P049B

[@kennedysgarage3281]

There is another possible solution, the egr coolers can block on these. It can be quite tricky to get at but relatively easy to remove. Are you a mechanic or just an owner ??

[@dimitrisdimitris2668]

@@kennedysgarage3281 I am the owner, what other solution? will must replace egr?

[@kennedysgarage3281]

@@dimitrisdimitris2668 both items will need to be checked, the egr valve/cooler & the exhaust pressure pipe 😉

[@moo7137]

I bet you had fun with that one bolt at the back between cylinder head and exhaust manifold 🤣🤣🤣🤣 ask me how I know🤦‍♂️🤦‍♂️🤦‍♂️

[@kennedysgarage3281]

The 1.5d I find a lot easier than the 2.2d they can be some pain 😬😬😬😬 We have been able to get the clear recently with heat and compressed air, thank god 🙃🙃