Ok, I know that on here there is at least one person who had a lot of
experience with these cars so I am hoping someone will be able to help. My
wifes Spacewagon is a 2000(W) fitted with the awful GDI engine and has
covered 96K. Over the last six months it has been getting harder to keep
the engine running smoothly. It stalls at lights, won't idle unless the
revs are kept up and runs rich. I put the car into a garage near me for a
diagnostic but all this found was that the front O2 sensor (lambda) was
out of spec, and "spiking".
He did say the plugs were a bit ropy, and offered to change them at Â£25
each! When we got the car back I changed the oil, filters and this week
replaced the sensor. The car is gradually getting worse and now will only
idle once in a blue moon.
As the car is now 12 years old and we no longer need a 7 seater I am very
reluctant to spend serious money on it. I have ordered a new set of plugs
and will change them but I am not convinced they are the sole cause of the
rough running. I have in the past given the intake manifold a spray of
Ecotech Powerboost, which removes the "varnish" which these cars tend to
suffer from, but I doubt if this will help.
Any thoughts welcome!