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VEHICLE TECHNICAL QUESTION & ANSWER
A RELIABLE ADDRESS TO ANSWER YOUR VEHICLE TECHNICAL INFORMATION
Home FAQ Electronic technical 
Question: (From email: kiennhat_thattinh89hy@yahoo.com)
Hi DTDAuto, when I change value of odometer, I pick up the 93a66 chip unfortunately broken it, I replaced it with 93c66 chip but the odometer not run and oil pressure lamp are not work, so what is this fault?
Answer: As you described, if your vehicle is not a European vehicle and you only replace the 93C66 chip so it is not affects on odometer and fuel pressure. We see that, may be you have shorten the circuit which cause of some faults around the IC 93C66.