knobby1 wrote:Many eBay sellers "claim" to sell genuine Denso when they aren't...trouble is, us poor unsuspecting buyers just don't know.
PCM valve..?? I suspect you mean PRV (Pressure Relief Valve) on the end of the fuel rail. Poorly SCV usually causes hunting idle and stalling/cutting out when coming to a stop at junctions etc....not so much power loss.
Change out the fuel filter if it hasn't bee done recently, do you know when it was last replaced..?? If "all" the learns passed successfully we can assume the injectors are ok. Did you do the pilot/injector learns too..??
EGR valve ok..??
Lord Knobrot
TheCake wrote:many on here would say avoid fleabay if looking for genuine denso try https://www.pfjones.co.uk/ for an scv and prv, but first try giving the egr a clean and the boost pipe section with the sensor on top that leads to the egr valve (its located on front of engine to the left on a 2.2 euro 4 its a pig to get to the bolts behind it though and theres a chance they will sheer off if they are rusted but it can easily be re drilled and tapped, I would think it'd be worth checking with forscan to be sure as i have no experience using any other systems as worked well for me, easy way to check if prv is gone undo the leak off return pipe (if yours has one) and if any fuel comes out its probably buggered.
hope this info will help.
TheCake wrote:egr istelf isnt too difficult to but can be a bit fiddly but should be able to do it from above although jacking up and working from under would be advantageous,
remove two 8mm bolts and two 10mm bolts and iirc two coolant pipes be prepared for lots of coolant loss from the pipes unless you clamp them all off and have some more coolant ready to fill back up when youre done, brake cleaner should work well to clean egr save to save a possible needless cost of buying a new one and wont do any harm cleaning it to see if it makes a difference, what was the code for the egr fault that came up?
Andy7757w wrote:ok thanks for the advice mate, the codes where
P1402-EGR control valve open circuit or disruption
P1409-EGR control valve open circuit or disruption
P0404-Exhaust-gas recirculation system outside specified range
I didn't think the egr would cause huge power loss that's why I instantly went and changed the diesel valves
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