I've had fuel consumption and power problems (which I never knew I had, until a friend drove my car) ever since I've had the car (over 15 months)...so in trying to find out what is wrong, I blocked the EGR valve today with a metal plate...now there is no power whatsoever for 99% of the time, complete nail...I restarted the car and it went like a rocket..WOW..then died again...will struggle above 2000rpm like its hit a rev limiter. Power will sometimes comeback momentarily....and it comes back strong...just pees me off to experience what I have been missing !! Anybody know what this is pinpointing to ? Oh no error codes when scanned. The reason I blocked the EGR in the first place was the car had no low down power and was smoking under acceleration, crap consumption...I mean really crap and warm start - takes minimum of 5 turns before it fires - cold start is fine.