Emmissions Fail Solved

[luk]

So after my Saxo Furio failing on emissions 4 times, being told by the garage, its lambda, its CAT its this its that and still failing...

I can confirm it has today passed, with no emission issues, it always plumed with white whispery smoke and dripped water from the exhaust, even after I had done the headgasket, so this time I decided to set off to the MOT station early (6am) doing a 65 mile detour, via hilly roads and national speed limits, I pulled up to the testing station hopped out expecting to see the dreaded white whispery smoke and there was nothing, still nervous knowing it had failed a test and re test twice before, but a miracle it passed.

My conclusion is the exhaust is a shit design, looking at it with the garage the tail pipe raises up at an angle so any moisture / water becomes trapped and just steams like a kettle at the joint between the back box and the downpipe.

So a good long run (60 miles) is well worth while if your having any issues with emissions, i'm hoping this info might help someone

[Phaeton]

Ah the good 'ol Italian tune-up

[luk]

Yep, was a lovely drive out too

[Manu]

I confirm the shit design. At some point I was doing mostly short trips (pug 106), needed a complete new exhaust every 2 years. The joys of having the middle pipe splitting from the backbox because it's all rotten inside, when you're doing 60...

Then had the saxo with a complete stainless magnex on it, never had a problem and the engine did run better as in feeling less restricted.

Back to your subject, it's always good to go for a run before testing the emissions. The mechanic who handles my car always goes for a 10 ish miles round trip before testing it for emissions, everything on the test sheet gets spot on.

[DaCrazyOne]

Terraclean would do it no harm too for getting all crap out the system had mine done few month back and gained a few BHP and also some more MPG too :)

[MartinObviously]

So after my Saxo Furio failing on emissions 4 times, being told by the garage, its lambda, its CAT its this its that and still failing...

I can confirm it has today passed, with no emission issues, it always plumed with white whispery smoke and dripped water from the exhaust, even after I had done the headgasket, so this time I decided to set off to the MOT station early (6am) doing a 65 mile detour, via hilly roads and national speed limits, I pulled up to the testing station hopped out expecting to see the dreaded white whispery smoke and there was nothing, still nervous knowing it had failed a test and re test twice before, but a miracle it passed.

My conclusion is the exhaust is a shit design, looking at it with the garage the tail pipe raises up at an angle so any moisture / water becomes trapped and just steams like a kettle at the joint between the back box and the downpipe.

So a good long run (60 miles) is well worth while if your having any issues with emissions, i'm hoping this info might help someone

The water in the exhaust is not what's off-setting the emissions test. Chances are the exhaust/cat wasn't hot enough at the time of test previously.

The original design was so bad, that in 1999 when Pug/Citroen changed to newer emission type engines (3 plug ECU), the cat was re-located into the manifold.

The fact you had steam coming from a joint, that would give you a high CO reading regardless. Bet it would have passed first time if you used exhaust paste on all the joints and re-assembled :y:

[MartinObviously]

p.s terraclean is a total waste of time. How long do you think it takes for carbon to build up again?

about 500 miles? :P

[stevo67]

Old garage trick,take the customers car for a spirited drive.Then return to mot station leave engine running and insert probe.

[DaCrazyOne]

p.s terraclean is a total waste of time. How long do you think it takes for carbon to build up again?

about 500 miles? :P

lol its every 25k miles and since I have had it done is a big improvement, call it a waste of time or what you want. Is becoming the standard and in the next few years VOSA,DVLA ruling it in will be a mandatory service to have done. Id rather have no carbon build up or very little and have next to no co2 emissions or very little and had also sorted a few smaller problems that was their and since gone. MPG has improved co2 improved oxygen all improved. Tried ya local BS crap to clean and flush system didn't see any results. Cured idle problem cured problem after long distant drives call it speculation from having done meh idk. Didn't cost me that much at all due to knowing the people who do it. Well worth it in my option. Rather have more MPG than what I did have.

[MartinObviously]

lol its every 25k miles and since I have had it done is a big improvement, call it a waste of time or what you want. Is becoming the standard and in the next few years VOSA,DVLA ruling it in will be a mandatory service to have done. Id rather have no carbon build up or very little and have next to no co2 emissions or very little and had also sorted a few smaller problems that was their and since gone. MPG has improved co2 improved oxygen all improved. Tried ya local BS crap to clean and flush system didn't see any results. Cured idle problem cured problem after long distant drives call it speculation from having done meh idk. Didn't cost me that much at all due to knowing the people who do it. Well worth it in my option. Rather have more MPG than what I did have.

hahaha if you say so :homme:

I can't see it becoming a mandatory service. ever.

The engine can't ever be better than new. CO2 emissions are terrible on a Saxo. They're Euro 2 engines.

Driving about town and the way some people drive, it'll NEVER last 25000 miles. That's total bullshit.

The only cars this will work on, is brand new cars. It'll probably last longer on them. On older cars? No. :y:

[Gandi699]

This terraclean stuff - does it just connect to the fuel system and get fired though the injectors?
Just wondered if it would work on carbon build up on DI engines but if its goes through the injectors its pretty much no use to clean the valves

[Pitbull69]

When I got mine terracleaned, the guy removed fuel lines at the front of the car (Focus ST170), and put 2 different cans through it, made the car drive much better, few mates have had there diesels done and said the MPG has risen enough that it virtually pays for itself, I didnt notice any MPG change on mine, just a smoother drive,

[Manu]

Snakeoilclean would do it no harm too for getting all crap out the system

fixed.

[welshpug]

yup, its utterbollox.

[welshpug]

You're better off sending your injectors off to be serviced, diesel ones need remanufacturing due to the wear they suffer from because of the immense pressure they run at.