S40 & V50 (2005-2012)
Hi everyone,
I just got a 2005 S40 momentum 1.8 with 150K kilometers. It seems to have a weird problem though. When the car is idle the rpm reads normal, but once I place my foot on the gas pedal, even if for half a second, the rpm climbs up to around 2000 and hangs there for 3-4 seconds before...