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Pugeot 106 1.1 high emissions

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icedmunkie Part of things All smoke.... No poke Posts: 150	Pugeot 106 1.1 high emissions icedmunkie @icedmunkie
	Oct 1, 2012 19:28:33 GMT Select Post Deselect Post Link to Post Back to Top
	Hello, I have done a search on here and have an standard pugeot 1999 1.1 Look 2 Its had new plugs etc about 6 months ago. I recently fitted a new backbox which was standard and it might be blowing slightly from the join but doubt it could affect the readings as much as they are. I replaced the Lambda but not the cat so far, so I do know the cat is the next thing to test but when I took it back today for them to check the emissions again before I went ahead with the re test that the HC was fluctuating erratically in the high 600ppm, but what he said to me was strange and I doubt he was trying to get work out of me bearing in mind where I work (ex military vehicle dealers) that it could be engine management problems, the EML light isn't on but every now and then when pulling away it seems to have no power but has got better since new lambda sensor fitted... Has anybody got any ideas or thoughts?? Can I see if there are any issues in the ecu memory as I cant access is with OBD reader? Do I just throw an new cat at it?? Attachments:
	1972 Vauxhall Firenza 1.8 MX5 powered 19something Land Rover Series 2 (in bits and not started)

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rodney Posted a lot https://www.facebook.com/RD-vehicle-transport-and-recovery-services-525622614268010/ Posts: 1,677	Pugeot 106 1.1 high emissions rodney @mrrodney
	Oct 1, 2012 19:41:51 GMT Select Post Deselect Post Link to Post Back to Top
	check airflow meter, as thatll cause problems,.
	facebook: rodney dean / rd transport

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ChasR RR Helper motivation Posts: 10,194 Club RR Member Number: 170	Pugeot 106 1.1 high emissions ChasR @chasr Club Retro Rides Member 170
	Oct 1, 2012 20:43:04 GMT Select Post Deselect Post Link to Post Back to Top
	Airflow meter could be it, but I would also check the coolant temperature sensor. I would not go out and buy one however. Find the resistance values for it (Autodata has these) and see if the resistance values are what they should be. Lambda values IIRC can also be triggered by leaks in the exhaust system, so if you reckon yours is blowing in places, I would attempt to seal them up to be honest. Final thing is, do you still have the standard catalytic converter on the car? I can't remember if the 1.1 has the cat in the manifold or as one of the front/centre sections.
	~~'72 Mercedes W108 280SE 4.5~~ '79 Honda NC-50 '03 BMW M3 Coupe '08 BMW E91 325d M-Sport Touring Pre-LCI '16 Yamaha XSR700 My car history and exploits: leylandlegends.com

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cobblers Posted a lot Posts: 3,921	Pugeot 106 1.1 high emissions cobblers @cobblers
	Oct 1, 2012 21:15:36 GMT Select Post Deselect Post Link to Post Back to Top
	106s don't have an airflow meter, they use a MAP sensor which seem to work perfect or not at all. Lambda on that second test is 1.6 which really must be due to a leak, cos an engine wouldn't run anywhere like properly with that little fuel - it's 24:1! An exhaust blow will pull almost as much air in as it leaks out, hence it looking mega super lean. Fixing the leak should sort the Lambda value. The CO value is most likely down to a weak CAT, if the Lambda sensor has been dodgy for a while you'll have damaged the cat - It's worth absolutely hammering the car round for half an hour and get the cat stinking hot just prior to the test. I've had Saxos and 106s pass the emissions test with no cat at all, but the engines were sweet as a nut, always serviced up and all the sensors were cock on. Your HC and CO figures looked better by the second test which is probably due to the cat having warmed up a bit by then, but it could be down to the fact that there was loads of fresh air diluting the reading! A 1999 106 will have the cat under the car near the gearstick


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icedmunkie Part of things All smoke.... No poke Posts: 150	Pugeot 106 1.1 high emissions icedmunkie @icedmunkie
	Oct 1, 2012 21:47:47 GMT Select Post Deselect Post Link to Post Back to Top
	Ta Cobblers, you kinda comfirmed everything I was thinking, ill sort the leaks and a new cat and hopefully it should pass. I'm not so trustworthy of this garage. Won't be going back there again!
	1972 Vauxhall Firenza 1.8 MX5 powered 19something Land Rover Series 2 (in bits and not started)

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