p3214 - 004 - heater return coupling - intermittent
Dear Folks,
While diagnosing my intermittant cylinder misfire on Cylinder 9. I am getting the fault code; p3214 - 004 - heater return coupling - intermittent. Please let me know if this is a fault with that Lambda sensor or the effect of some other fault? Looking forward to any guidance you can offer. Kind regards, |
Either sensor itself or Wiring too it would be my guess.
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I'll have a crawl around. Is there any guide to checking these with a multimeter? Cheers |
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