Question about Audi Cars & Trucks
Audi A4 1.8t car runs idled at about 800-1000 really rough idle. Has a lot of back pressure coming out of the exhaust. Any ideas? Or any questions you may have to help me figure out what's wrong with it? Please feel free to respond. Thank you.
There is misfire to the engine.. Misfiring means, bad spark Plugs or there is ignition coil is not working well
Posted on Dec 28, 2013
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Posted on Jan 02, 2017
SOURCE: 1997 Audi A4 B5 fuel pump
what makes you think its the fuel pump.......explain your problems (codes if you have any)and i might be able to help you......please give a good description of your fault please
Posted on Nov 11, 2008
It's possible that the diverter valve (DV) has failed. The OEM valve has a plastic diaphragm inside and it can crack. If this happens, the car will leak boost air and will lose power as a result. Go to www.audiworld.com, click on Resources, then Tech, and then go to the engine article about replacing/upgrading the diverter valve - it'll show you where it is and how to do it.
Posted on Mar 27, 2009
SOURCE: audi a4 2.8 quattro idle valve
there is no carburetor on these cars , the idle air control valve is an easy thing to change it is on the passenger side near the firewall on the back of the engine buy the new one so you know what it looks like it has a wire connector on top 2 bolts and a gasket behind it just unhook it unbolt it remove the old gasket install the new one with the new gasket and plug it in simple there is no sealer required
Posted on May 09, 2009
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