• Announcements

    • Stoney871

      Posting in General Chat thread.   11/11/2017

      it has been noted that too many Members are posting messages in the General Chat area instead of the correct Forums. Any messages posted in the General Chat area that are not General Chat will be deleted without warning and offenders may recieve warning points if repeated instances are seen from that Member. There are plenty of different Club areas that encompass 99% of Ford related posts, please select and use the correct one. If anyone is not sure of which area to post something then feel free to P/M myself or other Senior Staff for guidance. The Moderating Staff are having to spend far too much time chasing this problem instead of maintaining the other areas of the forum.


Budding Enthusiast
  • Content count

  • Joined

  • Last visited

About scarter

  • Rank

Contact Methods

  • First Name

Profile Information

  • Ford Model
  • Ford Year
  • UK/Ireland Location
    Please Select
  1. Check engine warning - Lambda O2 sensors

    Thanks for the quick reply. I'd already done a quick visual check on the fuses for the O2 sensors and they looked OK. Just continuity checked with a multimeter and the fuses are fine. Just been reading up and consensus seems to be that cheap eBay sensors are probably not worth the saved money so I guess I'll have a look for a couple of branded ones :/
  2. Hi, I've got the following error codes coming up on a Ford Focus 2005 Mk2 1.6Ti VCT: P0036 - HO2S Heater Control Circuit (Bank 1 Sensor 2) P0056 - HO2S Heater Control Circuit (Bank 2 Sensor 2) P0136 - Oxygen O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2) P0156 - O2 Sensor Circuit Malfunction (Bank 2 Sensor 2) Running Torque I looked at the sensor voltages (see attached screenshot) with the engine at idle. B1S2 is top right, B2S2 is bottom right. Both appear to be reading about 0.35V and this appears to be reasonably steady whether the engine is just idling or revved at 2500rpm for a few minutes. I presume this means I need to replace the two O2 sensors after the cat but it seems a little strange to me that they seem to have both gone together so wondered if there's anything else I should be checking first? I inherited the car from my girlfriend's brother for £100 rather than him scrapping it and although it doesn't seem to have anything major wrong it wasn't very well looked after so I don't really want to end up spending £80-100 on a pair of O2 sensors if there's something simple I might have overlooked. Any help and advice appreciated. Particularly whether anyone has got any opinion on whether to get cheapie OEM sensor replacements for £20-30 each or whether I'd be better paying double the price for branded.