Hi to all. Hope you guys could help me solve my problem with regards to speedometer signal.

I just finished an engine swap. I installed a Toyota 1NZ-FE engine in to an Opel Zafira A. The Zafira gets its vehicle speed signal from the wheel sensor and the ABS computer converts it then sends it to the speedometer.

When I tried to tap on to the speedometer signal wire going to the gauge, and connected it to the speedometer that came with the Toyota engine, it reads 8x faster (if Zafira gauge is 10kph, the Toyota gauge is 80kph).

I need to have the signal adjusted, so when the Toyota engine ECU receives the speed signal, it would be correct.

I don't know much about electronics. What kind of circuit do I need? Can you provide a schematic and parts list?

I hope you guys can help. Thanks in advance.

 

Hello,

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Quote:
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Bertus