LPG 2.0 16v

[johnny406]

Picked myself up a 1997 Peugeot 406 GLX with the 2.0 Litre Engine in it 61,000miles £900!. Been fitted with a Zavoli Multipoint LPG kit and Matrix Injectors, Runs very well on LPG, there is a little bit of 'pinging' on idle on both petrol and lpg very slight you can just feel it through the cabin and it does it and the engine makes a slight change in noise. Suppose it could be the spark plugs being fouled or something like that. It is due a service any tips as to what Plugs and HT leads I should use on the 406? what the spark gap should be for optimum preformance and reliablity on LPG and Petrol? And one final question can I use a K and N 57i Induction Kit on my 406 for a little more omph without it affecting the LPG kit? any knowledge welcome oh yeh installed flashlube in the engine just for piece of mind.

[nimike]

NGK plugs all the way, as they are better suited for dual fuel... not sure of the exact model though, best to check with a local LPG installer. You mention, that there is idle pinging... might be an idea for them to do a service on the gas system as well. Mine costs about £40 and thats the filter and plugs all included.