Engine power loss

[ed12371]

Does anyone know of any electrical issues that could be causing engine power losses?

I am running a Gu 1999 model TB45E motor.

Thanx

[threedogs]

are all you vacuum hoses intact, is it dual fuel.
need as much info as poss please, like when does it lose power?

[ed12371]

Yep everything is connected properly. It is running dual fuel but it has a loss of power on either fuel. It has 317k on the clock. I am the 2nd owner, before me the owner used it to tow a caravan around.

It is well looked after, oils changed regularly etc...

I got it Dynoed 6months ago and again recently and the Dyno guy said it was down on power from the previous test.

Someone suggested it could be an electrical issue, so I just wanted to get some feedback?

Thanx.