Question about 1998 Volkswagen Passat

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Honda idling high

2004 honda cvr idling high always, smell rotten eggs

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Check ur radiator coolent if its low add some to it if its ok try to replace the thermostat

Posted on Mar 15, 2009

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Posted on Jan 02, 2017

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run fault codes as the lack of rotten eggs smell is an indication that the cat converter is not functioning.

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hesitation on acceleration misfiring, the engine idle is erratic and the cat gets cherry color,and at the back of the exhaust the emissions smell like a rotten eggs,always the idle is not steady .

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When at idle shaking and smells like rotten eggs


the rotten egg smell indicates the truck is running very rich which will cause it to shake at idle.you need to have it put on a scan tool to see what the readings which will help to diagnose faster.you could have too much fuel supply because of an injector problem a plug not firing,plug wire,problem with the pcm,too much fuel pressure in the system a sensor sending the wrong information to the pcm.

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My engine shakes with smell of rooten egg


if it shakes and smells of rotten eggs, then the catylitic convertor is bad. driveability symtoms are--- lack of power, drop in fuel economy, lack of high speed power, rough idle or stalling are the symtoms of excessive back pressure. due to a plugged up convertor. it should be diagnosed by a mechanic to verify this.

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Rough idling, poor gas milege


Usually the rotten egg smell is a clogged CAT. Is the engine light on and if so did you retrieve any codes?

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1996 chevy c1500 w/rotten egg smell,loss of power,rough idle


Your catalytic converter is plugged up,  If you check the exhaust output at the tailpipe you will find it restricted.
Let me know if I  can assist further.
Lone99star

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