What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks
Mazda 5 1.8 petrol - Mazda 5 1.8 petrol rough erratic idle - turnin' japanese
Hi,

We have an 06 Mazda 5 1.8 ts2 petrol. In the last couple of weeks this has developed a fault. To start with it happened intermittently when starting from cold, but seems to be getting gradually worse. The engine is running rough when idling, feels like a misfire, and loses power when you try to pull away. If you let the car stand and idle from cold, it almost stalls, then over revs in a 10-20 sec repeating cycle. If you rev up to 2-3000 it runs better but the throttle seems less responsive than usual. It seems to run reasonably when warmed up.

Similar fault happened once or twice last year at a similar time of year but mysteriously disappeared...

Any help diagnosing or things to investigate would be appreciated!

Ta