R Overfueling and High Fuel Pressure
Hey guys,
I’ve just bought a V70R P2 ‘06 auto privately
When I bought it the car was running beautifully and was extremely fast
Within 100 miles the orange and green warning light came on and it started misfiring and hesitating occasionally - fault code read High Fuel Pressure
Extinguished code and gave it a full service
Removed K and N filter, plugs, fuel filter etc and returned everything to stock
Car ran like a dream albeit slightly slower for a full tank of Super Unleaded then started misfiring again and irregular (not smooth) gear changes
Back to the garage - no warning like but threw up High Fuel Pressure code again
Replaced fuel pressure sensor and Air Mass meter - cancelled codes - car ran like a dream again for a full tank of unleaded
Same issues return - misfiring and hesitating
Also, after every garage visit and code reset the car runs far more smoothly and economically regards MPG but as the miles creep up the MPG gets lower and lower
Occasionally there sounds like there’s a lot going on under the bonnet, motors running and whining etc, even after short steady drives on A roads
Has this been poorly remapped or something?
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