Hey guys having trouble with my speedo now and again it keeps droping and the engine manament light comes on and with that when i go to boost the car kanroos changed the speed senor on the gearbox and its still doing the same took it the local garage said its the crankshaft senors but my mates said that senors has nothing to do with the speedo any ideas?? cheers

 

Crankshaft position sensor is used by the ecu to determine the position of the crankshaft via a 0 to 5volt wave form.

Has nothing to do with speedo.

If you have no speedo input to the ecu it will cut the rev limit to 4500rpm.

Is it a jap import classic with therefore a cable converter to mph? Often the cables or the converter fail.

Simon

 

its a 51 plate sti import what could it be?

 

so could it be the converter on my import ? cheers simon

 

Simon?

 

Yes it could