[Philm]

Try starting your car and take off once you have suffient speed turn the key off, wait 3 seconds, turn ignition back on then clutch start your car.

Take it for a drive and see how it goes.

If this solves the problem give your battery a good charge, as when starting the voltage can drop to low and the ecu will go into limp mode.

You also may not have reconnected the battery properly creating a bad connection and when under load... Starting.... You get a huge loss.

Just a thought.

Phil