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Hey Guys,

Had my 100k service done not too long ago, and since then my auto is behaving weird.

Replaced oil and filter on the auto. Nissan Matic J oil used.

R34 rb25de neo engine with a B code auto box.

Since the service, I seem to have lost my over drive in speeds over 80km or so, that little 200rpm the engine drops when your crusing.

Also, under hard acceleration the gear changes are very rough, slight pause and then throws it into gear.

I also have an ecu consult cable and just have it monitoring, its not showing up any codes, but I have noticed that at speeds less than 100km it shows the same speeds on the display as it does on my speedo. once I start climbing above 100km its a bit off and then by 180km on the speedo its only showing around 160km on the display.

Im wondering if I have a faulty speed sensor.

Anyone ever had anything similar to this?

thanks for any help

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https://www.sau.com.au/forums/topic/289421-automatic-behaving-strange/
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Is it shift solenoid B? They're a semi-common problem, they start to break up internally and give random errors when the gearbox reaches operating temp. Progressively get worse then locks you in 3rd gear.

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