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post #1 of 4 Old 5th March 2012, 05:56 AM Thread Starter
kyu79
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fuel and throttle actuator

Hi, this is first time I write here, although I've been around to get useful infos. My question is, does anyone know whether the fuel that we use can affect the throttle actuator to throw out a fault? I use 95-98 Octane petrol here in New Zealand, but somehow since I changed from Shell to BP, my car began to throw out a fault code relating to the throttle actuator bank 2. The fault resets by itself but it also very depends on the outside temperature. I would like to hear some opinions before I replace the actual throttle actuator. I wondered if it is the actuator itself is at fault, then why is the fault not always there but on/off irregularly. My mechanic told me that it could be either carbon deposit inside the actuator so one of two sensors inside the actuator is throwing out a fault, or a poor plug connection (less possibility). I've replaced the battery to see if it works but no luck with it. Any opinions? Many thanks in advance.
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post #2 of 4 Old 5th March 2012, 02:36 PM
Hasan Shaikh
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It can be anything. But I would be really surprised if its the difference in fuel unless the fuel at one of the places is really dirty.
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post #3 of 4 Old 5th March 2012, 02:41 PM Thread Starter
kyu79
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thanks for reply,, do you know anything on our car, can throw out throttle actuator fault other than the actuator itself? anyone fixed the fault by ECU flash?
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post #4 of 4 Old 5th March 2012, 02:56 PM
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If you are running the stock tune then it cannot be caused by the ECU. In addition, I do not believe that the ECU flash will help in any way. It might make it worse though.

Its either a faulty sensor or a bad actuator. I would replace the parts on both banks if I had to change any.
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