turbo boost issue k18

Chilljohn · 26th June 2011, 20:15

i seem to have a weird boost problem with the boost on my car

some days the car is extremely eager , fast and with more power than the 190, to the point where if i on a straight level piece of road set of in 2nd gear one the turbo spools up it will spin the wheels (slightly wet road)

other times on the 1st set off in the morning it will pull very hard hit the over boost , start hunting on revs till i restart the engine then all is fine

other times its just like driving a nasp, can hear the turbo spool and dump when changing gear but no real power

I've changed , the map, plugs , leads , and coils

does this sound like the boost control thing (grey thing on side of the air box ?)

any ideas chaps ta

VVC-Geeza · 26th June 2011, 22:13

Changed the map?

sworks · 27th June 2011, 05:49

'map' sensor probably Mick? Check all the vac pipes are intact and connected - especially at the turbo as they are prone to coming off

26th June 2011, 20:15	#1
Chilljohn Posted a thing or two MG HS PHEV Join Date: Nov 2006 Location: Worksop Posts: 1,576 Thanks: 58 Thanked 80 Times in 75 Posts	turbo boost issue k18 i seem to have a weird boost problem with the boost on my car some days the car is extremely eager , fast and with more power than the 190, to the point where if i on a straight level piece of road set of in 2nd gear one the turbo spools up it will spin the wheels (slightly wet road) other times on the 1st set off in the morning it will pull very hard hit the over boost , start hunting on revs till i restart the engine then all is fine other times its just like driving a nasp, can hear the turbo spool and dump when changing gear but no real power I've changed , the map, plugs , leads , and coils does this sound like the boost control thing (grey thing on side of the air box ?) any ideas chaps ta __________________ John Free enable of digital speedo readout on message centre (takes 2 mins) Free Vis motor testing, via obd port courtesy of my delphi so no need to take anything apart, along with free code scan including abs and airbag message me for details

26th June 2011, 22:13	#2
VVC-Geeza This is my second home 2005 Connoisseur SE 1.8 Turbo,2004 45 1.8 Connoisseur and my beloved 1998 VVC Coupe. Join Date: Nov 2009 Location: Derby. Posts: 8,810 Thanks: 2,022 Thanked 1,016 Times in 739 Posts	Changed the map? __________________

27th June 2011, 05:49	#3
sworks This is my second home Rover 75 Tourer, Classic mini Cooper S, Abarth 595 competizione, MG TF and a Hyundai Tucson PHEV Join Date: Feb 2007 Location: Cumbria Posts: 13,073 Thanks: 1,033 Thanked 1,686 Times in 1,040 Posts	'map' sensor probably Mick? Check all the vac pipes are intact and connected - especially at the turbo as they are prone to coming off __________________ ................................................. 'Marmite' Possibly one of the most famous 75 tourers produced! left the production line as the last of only Three Rover 75 tourers produced in Trophy Yellow. 48 hours later Longbridge closed. The last sold ordered 75 Tourer. Paid for by the Phoenix Four and handed over by John Towers to the Warwickshire Northampton Air ambulance service as a Rapid Response vehicle