Cat computers incomplete(smog related)
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05 c55 silver, 98 Imperial Red C43
Cat computers incomplete(smog related)
My car hasn't been driven so I need to take it out until all the computers check out.
Im down to the catalytic converter one.
Anyone know the best driving cycle to speed this up? I've only driven under 50 miles so far over the last month.
Im down to the catalytic converter one.
Anyone know the best driving cycle to speed this up? I've only driven under 50 miles so far over the last month.
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From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
Never heard about a computer check for cat converters, apart from the pollution level check which is done at the exhaust end.
I would think getting the cats nice and hot should be sufficient, not unless they have died
I would think getting the cats nice and hot should be sufficient, not unless they have died
Thread Starter
MBWorld Fanatic!
Joined: Sep 2007
Posts: 4,566
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05 c55 silver, 98 Imperial Red C43
Not sure how it is on the euro midels but here its a thing.
Just driving the car should do it but my driving permit ends this month and Id love to know the most efficient way of getting those to fire up asap.
Some ppl say driving on less than half tank at 50+ mph helps but not all cars are the same. Ive also heard that driving it while the engine is cold also helps.
Just driving the car should do it but my driving permit ends this month and Id love to know the most efficient way of getting those to fire up asap.
Some ppl say driving on less than half tank at 50+ mph helps but not all cars are the same. Ive also heard that driving it while the engine is cold also helps.
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Joined: Nov 2001
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From: Henrico, Virginia
2014 ML350 4Matic
Your terminology is a bit misleading. There are no separate "computers" measuring cat performance. Cat performance is measured by the ECU with inputs from the O2 sensors. The pre-cat O2 sensor readings are compared to the post-cat O2 sensor readings by the ECU. Being the car sat so long I would check the O2 sensors. Bad sensors will cause the ECU to "think" the cats are not performing.
