andy o
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| posted on 2/10/11 at 05:50 PM |
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help me get my boys clio thru mot
hope someone on here can help
my sons 1.2 renualt clio (96) has failed its mot (emissions)
it runs very rich even with the air filter removed,it has a new cat fitted
it just about ok at idle but a mile away when on fast idle
this has become a real head scratcher so any helpful advice would be great and give me more time on my car.
thanks
andy
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Ninehigh
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| posted on 2/10/11 at 06:08 PM |
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Ours failed with high emissions, there was a crack in the exhaust before the cat. No idea how that caused high emissions...
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RichardK
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| posted on 2/10/11 at 06:15 PM |
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Lambda sensor would be my next point of call.
Cheers
Rich
RENAULT CLIO MK1 1.4 1.2 E-Type 1990-1998 Lambda Sensor | eBay
[Edited on 2/10/11 by RichardK]
Gallery updated 11/01/2011
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ash_hammond
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| posted on 2/10/11 at 06:22 PM |
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quote:
Originally posted by RichardK
Lambda sensor would be my next point of call.
Cheers
Rich
RENAULT CLIO MK1 1.4 1.2 E-Type 1990-1998 Lambda Sensor | eBay
[Edited on 2/10/11 by RichardK]
.: www.mac1motorsports.co.uk | www.m1moc.com :.
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gregs
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| posted on 2/10/11 at 06:49 PM |
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quote:
Originally posted by RichardK
Lambda sensor would be my next point of call.
Cheers
Rich
RENAULT CLIO MK1 1.4 1.2 E-Type 1990-1998 Lambda Sensor | eBay
[Edited on 2/10/11 by RichardK]
ditto
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steve m
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| posted on 2/10/11 at 06:54 PM |
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I have to agree with Lambda sensor, as my old rover 75 2 years running had to be coaxed through the MOT , to get a pass, yet year 3 i i changed the
Lambda and was pretty well back to factory settings
has the head gasket gone, or lost water ??
as i believe that kills Lambda's
[Edited on 2/10/11 by steve m]
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austin man
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| posted on 2/10/11 at 07:00 PM |
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My Duughters 206 had to have the nuts ragged off it for 15 minutes to get through It had been stood a while though
Life is like a bowl of fruit, funny how all the weird looking ones are left alone
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Dusty
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| posted on 2/10/11 at 07:03 PM |
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Engine temperature sensor could be another possible.(Cheaper than a lambda)
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britishtrident
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| posted on 2/10/11 at 07:55 PM |
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Life expectancy of lambda sensor is about 8 years especially on older designs, newer ones are designed to be a bit more robust becauseof US emission
requirements.
Lambda sensors slow down with age and also drift out of calibration both faults are not usually picked up as a fault by the ECU's fault
monitoring on older vehicle types.
The sensor heater circuit should also be checked for 12v supply and earth ground.
Important not to buy Lambda sensors from an unknown source as there too many counterfeit parts getting passed off on eBay.
If buying off the web I would sugest you use a direct fit sensor from the Gendan website.
Without a diagnostic scanner you can check if the sensor is "switching" (ie the output flicker between about 0.3v and 0.8v )
with a decent DMM or Oscilloscope or a special Lambda tester.
Gendan link
[Edited on 2/10/11 by britishtrident]
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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britishtrident
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| posted on 2/10/11 at 08:07 PM |
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Draper Lambda sensor tester http://www.workshopping.co.uk/product/draper-expert-lambda-sensor-tester/68283/
Apparently now discontinued by Draper
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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