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| D2 - Fuel and Exhausts Everything to do with getting fuel into the engine, and fumes back out again |
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#1
10th March 2012, 04:30 PM
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Cat Bank 1 below efficiency
Following on from my fault code thread in the VCDS forum, the other morning whilst the engine was still cold I needed to pull out into heavy traffic so with a gap big enough I gave it a few beans to join the flow from a stop. Result, the engine light came on but the car continued to drive fine. I drove another 60 miles since, and the car still feels fine and using no more fuel than usual and engine light still on.
Moving on to today, whilst at the garage having the rear springs changed the mechanic scanned the car and the fault was "Cat bank 1 below efficiency - Intermittent". Cleared the fault, engine light now out and not returned. He reckoned that maybe because the engine was still cold and running with cold mixture maybe that caused the light to come on. Looks like my cats are getting old and less efficient at doing their job. I'll get a better picture in a few weeks as I need to get the car through an MOT.
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Manny 2004 A4 1.8T Sport Cabriolet, 89K Miles Past 2004 D3 A8 3.7 Quattro, Xenon, Bose, Blinds, Solar Sunroof, TV, ACC, phone and almost every option. 168K miles rising slowly with retrofit AMI and DVB-T in place of Analogue 2003 Volvo S60 D5 SE Manual, 197K miles. 2001 D2 A8 3.7 QS, Bi-Xenon, Bose, Blinds, Electric Everything, retrofitted RNS-D, 191K Miles 
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