New guy

[chrissearch]

Hi, My name is Chris and I'm new to this forum. I am onto my third Nissan Terrano 3.0L SVE 2003 version and it'd great for pulling my caravan. I'm having a bit of an issue with power through at the moment. It seems like one minute the power is there and then it's not when under load going up a hill or generally even on the flat. I have had a new fuel pump fitted at a Nissan dealership last week as this packed up but to be honest I was having this intermittent power loss issue before then. The fuel lines were corroded so I had some flexible ones fitted and was wondering whether I was getting air in the system which could be causing the power issue and maybe knackered the fuel pump over time? The other thing I was thinking about is the vacuum pipes? One of them has a filter which could probably do with changing and they all look perished. Maybe this is causing the intermittant power if the turbo wastegate is not operating properly? I have checked the intercooler hoses and all of the clamps are tight. Has anyone else had this type of problem and could recommend a potential fix? The last thing I was thinking about was a MAFF sensor but not sure of that could cause the intermittent higher rev powerloss, which is especially flat in third. I guess I'll maybe start with the vac pipes and replace the filter black hoses with clear ones to see if there's any air perhaps?