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Opel corsa 2000 loose power at 80kmph and start to misfire

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This is all i could find on the internet..........When the car is 'hesitating', the computer (ECU) in the car is registering this as a misfire, probably due to too weak a mixture.
Really, this needs to go on a diagnostic scanner with a garage that understands whats going on here. In the live data menu on a good scanner you can see what each of the sensors is actually telling the ECU. Without that information, it is very hard to diagnose accurately.
If you take it back to your original garage, get them to check this info for the EGR valve, especially the feedback voltage (should be close to 1.0 volt), and for the short term fuel trim (0% alternating + or - by no more than 5%). If they don't understand, get them to read the value of the after catalyst lambda (oxygen) sensor, engine hot, and make sure the reading is fairly steady around 0.6 volts. If it is 0.1 volt then suspect the airflow sensor.

Posted on Dec 11, 2016

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  • Opel Master
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Replace the fuel filter. A clogged filter will still give the pressure you need. But won't give the volume you need at higher speeds.

Posted on Dec 11, 2016

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Posted on Jan 02, 2017

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