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Speedometer stopped working & knock sensor

1990 Toyota PU DLX 3.0 v6 4x4

1. Wanted to know the best way to troubleshoot this issue. ECU error = vehicle speed sensor??

2. Know the tuff one, ECU error = knock sensor, should I pay a mechanic or do it my self.


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Depending on you mechanical skill level will determine whether you do this job or not . The speed sensor is an easy fix . just locate the sensor on the transmission and replace 1 screw holds this on its a type of magnet. the knocks sensor is a whole different kettle of fish, It is located in the valley between the heads under the intake manifold . If your comfortable pulling the top end of your motor apart then go for it . This will involve the fuel rails a lot of vacuum lines and removing and then seating the intake manifold new gaskets and proper torque will be required when reassembling . If you want to tackle this task let us know and we can help guild you along the way with proper torque settings and any other issues you may encounter. Hope this helps

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