Having rich mixture problem and engine get vibration in idling only.?

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Why a very rich mixture is required for idling?
Posted by:
Mohammad Imran
07-October-2013

Engine getting vibration in idling only , in driving no any problem in vehicle. Fuel pressure: bar O2 sensor bank1 upstream:1. v O2 sensor bank1 downstream:0. v Throttle opening:3.5 %

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Question added by saiesh acharya , Auto Electrician , Skyline Automotive
Date Posted: 2018/11/26

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1 Answers

by saiesh acharya , Auto Electrician , Skyline Automotive

This problem 80% solved after replacing the Alternator . And completely solved after we put 60Ah battery. ( 45Ah is the battery specific of the vehicle. When we replace alternator and 60Ah battery it's completely reduce the vibration.

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