do these work

just came across this on fleabay and wondered if they were any good

Hot Starting Fix - Range Rover BMW Diesel - P38 DT DSE | eBay

mutsnutz said:

just came across this on fleabay and wondered if they were any good

Hot Starting Fix - Range Rover BMW Diesel - P38 DT DSE | eBay

Click to expand...

Yes they convince ECU that engine is cold and cause it to use cold start settings. Getting your injection pump timed is a better fix. Chains will have stretched and the static injection timing gone retarded.

is it difficult to time it never done one before

mutsnutz said:

is it difficult to time it never done one before

Click to expand...

Not easy, special tools required. Hot start fix is fine as long as it's the timed version.

mutsnutz said:

is it difficult to time it never done one before

Click to expand...

Special tools needed. Adaptor for pump, DTI and crank locking pin. And of course the knowledge of how to do it. If you had the tools you could follow the instructions in RAVE. Basically it sets the pump piston slightly on cam with delivery valve starting to open. If the chains stretch it retards the static injection. Automatic advance is controlled by internal pump pressure when the engine is running. The advance solenoid only has limited movement, about 12 degrees, this is only used for cold start along with an high idle setting for control collar. So when the engine is hot if static is out no advance is possible until engine is running and there is no high idle fuel setting being used either. Hence bad starting

thanks for the advice i think its best if i let a specialist do it