Faults Cat smell in car when accellerating

civicsport · 26th July 2006, 19:17

there seems to be a smell coming into the cabin through the air con when accellerating down a sliproad to join a motorway, at first i just thought it was from the car infront but today there was no one in front and it was there again

, i`ve had a quick look at the exhaust manifold after the cat and theres a pipe comes off and goes into a block with an actuator on top then comes out of the left hand side and goes under the alternator to who knows where

, does anyone know what the actuator is for, is it for the vtec?, is this opening at high revs and leaking causing the smell?

any help or opinions welcomed :P

Cheers Martyn

civicsport · 26th July 2006, 19:31

Well i`ve answered one question which brings me to another, the pipe to the left is from the cooling system to the water pump, so where do the exhaust gasses go???

Pottsy · 26th July 2006, 19:47

The pipe could be the egr - this won't make any smells!

When you give the car full throttle, the aircon turns off - can you recreate the smell by switching the aircon off? Or at least the compressor (by going into econ mode - I don't have a sport, sorry).

Aircon can pong when switched off - it's nasties that grow in the moisture in the system, but it shouldn't happen to such a new car.

civicsport · 26th July 2006, 19:52

Dont have an EGR and i dont think its the a/c, deffo smells like the exhaust but can`t understand how its getting into the cab.

basegreen · 26th July 2006, 21:24

Quote:

Originally Posted by civicsport

there seems to be a smell coming into the cabin through the air con when accellerating down a sliproad to join a motorway, at first i just thought it was from the car infront but today there was no one in front and it was there again

, i`ve had a quick look at the exhaust manifold after the cat and theres a pipe comes off and goes into a block with an actuator on top then comes out of the left hand side and goes under the alternator to who knows where

, does anyone know what the actuator is for, is it for the vtec?, is this opening at high revs and leaking causing the smell?

any help or opinions welcomed :P

Cheers Martyn

Smelt this for the first time last week.

civicsport · 26th July 2006, 21:54

What conclusion have you come up with BG

basegreen · 26th July 2006, 22:34

Quote:

Originally Posted by civicsport

What conclusion have you come up with BG

I assumed that it was something to do with working the engine hard in hot weather.

Its a sort of gearboxy smell in my opinion (if indeed it's the same thing)...

kan2 · 26th July 2006, 22:49

i had this once the exact same place, on a slip road going onto a motorway, i felt it smelt a bit like burnt plastic, hasnt ever happened since though.

basegreen · 26th July 2006, 22:54

I got mine coming off a roundabout, at 6000rpm

richierich · 27th July 2006, 09:05

6000rpm, the stuff of dreams for us dieselies.

Do any of you actually own a cat that could have crawled under the bonnet of an evening without you knowing. It happened to my mother-in-law, unfortunately series 2 Land Rovers running on African fuel make a hell of a noise on starting, it was several days before the air dried remains were found after noticing a bad smell.

elfa7 · 27th July 2006, 11:26

Quote:

Originally Posted by basegreen

I got mine coming off a roundabout, at 6000rpm

6000 rpm on a roundabout --- was it from your trousers ??

elfa7 · 27th July 2006, 11:33

Just a thought. I know its usually an "eggy" smell, but could it be the Catalyst ?.

basegreen · 27th July 2006, 11:41

Quote:

Originally Posted by elfa7

Quote:

Originally Posted by basegreen

I got mine coming off a roundabout, at 6000rpm

6000 rpm on a roundabout --- was it from your trousers ??

Nah, it was perfectly safe, just couldnt be bothered changing gear

WoolyCiv · 27th July 2006, 23:15

I have had a smell as well (but would have described it more like singed feathers) and it seems to occur around 6000 or more as well.

elfa7 · 28th July 2006, 07:05

Quote:

Originally Posted by WoolyCiv

I have had a smell as well (but would have described it more like singed feathers) and it seems to occur around 6000 or more as well.

You've obviously had a strange bird in the car !!!

WoolyCiv · 28th July 2006, 23:26

26th July 2006, 19:17	#1 (permalink)
civicsport Mr. Foglights Locking Wheelnut Join Date: 16th June 2006 Location: Stockton-on-Tees Posts: 189 Thanks: 1 Thanked 0 Times in 0 Posts	Cat smell in car when accellerating there seems to be a smell coming into the cabin through the air con when accellerating down a sliproad to join a motorway, at first i just thought it was from the car infront but today there was no one in front and it was there again , i`ve had a quick look at the exhaust manifold after the cat and theres a pipe comes off and goes into a block with an actuator on top then comes out of the left hand side and goes under the alternator to who knows where , does anyone know what the actuator is for, is it for the vtec?, is this opening at high revs and leaking causing the smell? any help or opinions welcomed :P Cheers Martyn

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This thread is about: Cat smell in car when accellerating, it's in Engines and Transmission at the Honda Civic forum Civinfo; there seems to be a smell coming into the cabin through the air con when accellerating down a sliproad to join a motorway, at first ...

26th July 2006, 19:31	#2 (permalink)
civicsport Mr. Foglights Locking Wheelnut Join Date: 16th June 2006 Location: Stockton-on-Tees Posts: 189 Thanks: 1 Thanked 0 Times in 0 Posts	Well i`ve answered one question which brings me to another, the pipe to the left is from the cooling system to the water pump, so where do the exhaust gasses go???

26th July 2006, 19:47	#3 (permalink)
Pottsy Administrator Civinfo master Join Date: 10th April 2006 Location: Leics Posts: 5,039 Thanks: 13 Thanked 96 Times in 51 Posts	The pipe could be the egr - this won't make any smells! When you give the car full throttle, the aircon turns off - can you recreate the smell by switching the aircon off? Or at least the compressor (by going into econ mode - I don't have a sport, sorry). Aircon can pong when switched off - it's nasties that grow in the moisture in the system, but it shouldn't happen to such a new car.

26th July 2006, 19:52	#4 (permalink)
civicsport Mr. Foglights Locking Wheelnut Join Date: 16th June 2006 Location: Stockton-on-Tees Posts: 189 Thanks: 1 Thanked 0 Times in 0 Posts	Dont have an EGR and i dont think its the a/c, deffo smells like the exhaust but can`t understand how its getting into the cab.

26th July 2006, 21:54	#6 (permalink)
civicsport Mr. Foglights Locking Wheelnut Join Date: 16th June 2006 Location: Stockton-on-Tees Posts: 189 Thanks: 1 Thanked 0 Times in 0 Posts	What conclusion have you come up with BG

26th July 2006, 22:49	#8 (permalink)
kan2 Valve Cap Join Date: 2nd July 2006 Posts: 47 Thanks: 0 Thanked 0 Times in 0 Posts	i had this once the exact same place, on a slip road going onto a motorway, i felt it smelt a bit like burnt plastic, hasnt ever happened since though.

26th July 2006, 22:54	#9 (permalink)
basegreen Super Moderator Civinfo guru Join Date: 15th April 2006 Location: noitacoL Posts: 2,870 Thanks: 0 Thanked 2 Times in 2 Posts	I got mine coming off a roundabout, at 6000rpm

27th July 2006, 09:05	#10 (permalink)
richierich Smell My Cheese! Rocketship door handle Join Date: 17th May 2006 Location: Bicester, Oxfordshire Posts: 1,847 Thanks: 0 Thanked 0 Times in 0 Posts	6000rpm, the stuff of dreams for us dieselies. Do any of you actually own a cat that could have crawled under the bonnet of an evening without you knowing. It happened to my mother-in-law, unfortunately series 2 Land Rovers running on African fuel make a hell of a noise on starting, it was several days before the air dried remains were found after noticing a bad smell.

27th July 2006, 11:33	#12 (permalink)
elfa7 Supporter Rocketship door handle Join Date: 8th May 2006 Location: Cheshire Posts: 1,703 Thanks: 0 Thanked 0 Times in 0 Posts	Just a thought. I know its usually an "eggy" smell, but could it be the Catalyst ?.

27th July 2006, 23:15	#14 (permalink)
WoolyCiv 12th June 2006 1.8EX Rocketship door handle Join Date: 28th May 2006 Location: Lancashire Posts: 1,118 Thanks: 0 Thanked 0 Times in 0 Posts	I have had a smell as well (but would have described it more like singed feathers) and it seems to occur around 6000 or more as well.

28th July 2006, 23:26	#16 (permalink)
WoolyCiv 12th June 2006 1.8EX Rocketship door handle Join Date: 28th May 2006 Location: Lancashire Posts: 1,118 Thanks: 0 Thanked 0 Times in 0 Posts