3200 Rev Counter

[Kincath]

Does anyone know where the connection is for the rev counter? Is it the gearbox?? My rev counter is not working. The speedo works fine.

 

[safrane]

Normally on the crank case cover.

 

[Contigo]

Is it not fitted to a transducer on the gearbox which sends a signal to the ECU?

 

[77GR]

If I'm reading the wiring diagram correctly, then the tachometer is being triggered by a light Blue and Green wire from the injection ECU to the instrument cluster.

 

[Kincath]

Thanks guys I’ll send this to my guy who is doing all the work to it. The car has a newly fitted gearbox so it may be a loose wire around here.

 

[Oneball]

I doubt the rev counter is fed from anything other than the ecu.

If it’s not working I seriously doubt it’ll be at the oily end. If that was the case the engine wouldn’t run.

I’m guessing it’s somewhere between ecu and the needle.

 

[madmanmart]

I doubt the rev counter is fed from anything other than the ecu.

If it’s not working I seriously doubt it’ll be at the oily end. If that was the case the engine wouldn’t run.

I’m guessing it’s somewhere between ecu and the needle.

But surely the ecu picks a signal up from somewhere?
I’m not sure in this one sorry.

 

[Oneball]

But surely the ecu picks a signal up from somewhere?
I’m not sure in this one sorry.

Yes from the crank sensor. But if it’s not picking up that the engine won’t run.

 

[madmanmart]

Yes from the crank sensor. But if it’s not picking up that the engine won’t run.

Got you, possibly double check the ECU connections then.
The rev counter worked on the donor Graham.

 

[Kincath]

Got you, possibly double check the ECU connections then.
The rev counter worked on the donor Graham.

Thanks Martin I’ll check with Greg if it was working before.

 

[Rex B]

My diagram shows the rev counter connects to the ecu connection no 4 with a grey and green cable , it also has a positive and negative but if these were a problem lots of other things would not work as well so I doubt this is the problem.

Rex B