2005 Mazda 6 stalling and rough running. No fault codes present. The fuel pressure would only get to 2.5bar when it should be around 4bar at idle. The final diagnosis was a faulty intake fuel filter, but this case highlights the industry problem of technicians not checking in-tank fuel filters. TaT members can read a similar repair solution at https://www.tat.net.au/tatsafact/249 To join TaT visit www.tat.net.au/social.html Burson Auto Parts | The Automotive Technician