Rich Posted December 18, 2012 Report Share Posted December 18, 2012 On a relatives car they have had the CEL on for a while now and I got it plugged into the laptop yesterday, shows the P0030 code, which is for the heated O2 sensor. I cleared it but need to get it sorted for him. The car is also using alot of fuel ATM as it's obviously running rich. I have read there was a TSB about this code (67/2006), something to do with the calibration to the ECU. Does anyone here have access to Etis or know someone who can look the car up if I PM the reg (it's no longer free)? When I had the laptop plugged in I checked the readings and it's showing the O2 sensor to be dead, reading 0 volts. If this TSB is the issue would it be causing the reading to show 0 or does the sensor need replacing or the wiring at fault? Quote Link to comment Share on other sites More sharing options...
Tony Posted December 18, 2012 Report Share Posted December 18, 2012 I think you need to inspect the wiring and the jack plug. Quote Link to comment Share on other sites More sharing options...
Rich Posted December 18, 2012 Author Report Share Posted December 18, 2012 Yeah I'm going to once I know where it is. I can't see it from the engine bay so it must be at the rear or underneath. I'll get it jacked up and have a look first. Quote Link to comment Share on other sites More sharing options...
Tony Posted December 18, 2012 Report Share Posted December 18, 2012 Most times now the plug is in the engine bay... Quote Link to comment Share on other sites More sharing options...
SMARTLY Posted December 18, 2012 Report Share Posted December 18, 2012 Isn't the heated one the from one before the catalytic converter? If so it should be on the manifold which I thought wa on the front of the engine on those Fiestas. Is this the engine? http://www.lyonssystemsserver.com/breakerpro/1038/1038-080710-120201-1-1-58-010-PTIMG.jpg Quote Link to comment Share on other sites More sharing options...
adam_r Posted December 19, 2012 Report Share Posted December 19, 2012 you will also want to get it replaced ASAP. one of my old cars had this issue and it ran rich for a few months before i got around to fixing it.... by being so lazy i killed the CAT because the fuel mixture was too rich Quote Link to comment Share on other sites More sharing options...
Rich Posted December 19, 2012 Author Report Share Posted December 19, 2012 Isn't the heated one the from one before the catalytic converter? If so it should be on the manifold which I thought wa on the front of the engine on those Fiestas. Is this the engine? http://www.lyonssyst...8-010-PTIMG.jpg Looks very similar but it's this one below. It's bank 1 sensor 1 so yes the pre cat and I'm pretty sure it's closer to the cat than the manifold. Although I did look when it was dark so will have another look. you will also want to get it replaced ASAP. one of my old cars had this issue and it ran rich for a few months before i got around to fixing it.... by being so lazy i killed the CAT because the fuel mixture was too rich It's been like this for a month or 2 I think but that is a good point. It's in the garage from today getting accident damage repaired so will get it sorted when he's got it back. Quote Link to comment Share on other sites More sharing options...
SMARTLY Posted December 19, 2012 Report Share Posted December 19, 2012 Do you think the sensor may have been damaged in the accident Quote Link to comment Share on other sites More sharing options...
Rich Posted December 19, 2012 Author Report Share Posted December 19, 2012 He only told me about the light a couple of weeks ago, the repairs have already been authorised so I don't think he could claim for that now. Quote Link to comment Share on other sites More sharing options...
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