Question about 1999 Audi A4

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Audi a4 1999 When I start the car in the morning it rev's high for a few minutes and then when it drops i can drive. what do i need to fix this problem ???

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How high does it rev? It's supposed to hold around 1200RPM until the cats heat up (the secondary air pump causes this) to help with cold start emissions.

Posted on Jul 03, 2011

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Posted on Jan 02, 2017

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My 96 ford taurus revs high when starting then works it way from 1500 or more down to 800 but fluctuates from 800 to a little over 1000. When putting car in rverse or drive from park engine revs up to...


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When I start the car it stays at 2000rpm for a few moments then drops down. I'll drive for a few minutes then put it in park and it revs up and down.


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If this is the case the car could have a faulty cam shaft sensor and the ECU will force the car into safe mode with high running revs and it is hard to start. It should be taken to a dealer in the first instance if you can get it started, if not get a mobile mancanic to do a VAG-COM test to clarify the fault, the test should be around £80. Good luck,hope this helps.

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1990 daihatsu applause 101a 1.6lt 5spd manual


I have had the same problem, replaced everything. Have not solved it. Sometimes car stops completely whilst driving. Your problrm will only happen when air con is on. There is a small electronic box under glove box. Turn small dial to the low postition or high, whichever fixes it and also bring your revs up with the idle screw on throttle body. I still have not solved my engine cut out problem, must be a faulty relay. I have replaced the computer and distributor but still have the problem

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My Audi 97 A4 revs high when i start it and then .transmission pulls when changing


I have a 99 a4 and it revs to about 1200 at first start, after a minute or so it lowers to about 750 rpm which is the norm.It has done this since it was bought. Also when the air condenser/conditioner is on it idles high. The condenser is run off the engine so i also lose a few horsepower.

I'm not sure what "transmission pulls when changing" means though, needs clarification.

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1 Answer

Rev counter high.


sounds like the sensor module

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