I have a '97 ST24. UK spec. When accelerating hard in the first four gears (manual box) the speedo decides to swing high. Most noticable is from 50 in third. The indicated speed can shoot upto 90. Settles down when you ease off the throttle. Doesn't happen (much) with gentle acceleration. Only happens when the engine is up to temperature.
I have tried to find a fault but the sender unit is fully electronic. No cable to be found, only a pair of wires. Any ideas?
