Car won't reverse after head replacement?

[davidma]

I need a bit of advice as I am starting to lose the will to live

I had a cracked head on my 3.0td k130 which I replaced myself, but after fitting it and running the car up the accelerator pedal was stiff. I must have shorted the kick down cable to earth as the inner plastic sheath had melted. My fault as I hadn't disconnected the batteries when removing the throttle linkage and it must have earthed throught the cable.

I replaced the kickdown cable but I have no drive in reverse gear and when driving forwards it won't chage up to top gear so is over revving.

I am a bit stuck now and wanted to know could I have damaged the ECU when the cable shorted or could I have damaged something in the gearbox.

I have checked the levels using the correct method of selecting gears when hot but that is ok.

Also what inside the box selects reverse, is it a switch or a solenoid?

Any help would be much appreciated as I need the car for work and need to sort it ASAP.

does anyone knoweany good gearbox specialists near Slough if I can't sort it.

Cheers
Dave

[andrewlee31]

sounds like the throttle position sensor to me mate

[davidma]

Do you think I may have damaged it when the cable shorted as everything was working fine before. How does the throttle position sensor work?

Is there anything I can do to test it?