focus st170 engine warning light
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focus st170 engine warning light
my st170 engine warning light has come on. i have recently had had a new cat fitted and have been told i need a new flexible joint, dont know if this could be anything to do with it. i have done the check on the dash and it says DTC codes none? anybody got any ideas what to check or what it could be? cheers
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If the car is driving normally, it's probably lambda sensors. 1 pre-cat and 1 post-cat from memory. Cheap off Ebay but can't vouch for the quality.
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yes the car seems to be driving the same
would the lambda sensor not bring up a fault code?
would the lambda sensor not bring up a fault code?
Last edited by shunn; 13-09-2010 at 10:40 AM.
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yeh the lambda would throw up a code. i had to do the rear sensor on my 170 a few weeks back. reset the light and its stayed off. cost me 21 quid for the sensor off ebay
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need the fault codes read. if the engine management light has come on then there are definately fault codes but the dash check does not bring them up.
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I'm in Bradford.
Try this link first. The rest of the site very good for the st170.
If you're still having trouble let me know.
Simon
Try this link first. The rest of the site very good for the st170.
If you're still having trouble let me know.
Simon
might try taking it to my local garage and see if they can just tell me what code it flags up
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No idea what it costs elsewhere, but I know a man with a laptop who works mobile and charges Ł40/50 ish to come to your car and diagnose problems. Charges per hour thereafter.
#16
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buy a code reader off ebay. my st170 did the same thing so i bought a code reader off ebay 22 quid. found the problem to be rear lambda so then got that off ebay 21 quid. problem sorted and now have a code reader for future problems on any car. 43 quid in total to sort my focus out and been ok since, its your best option and to do the same rather than pay a garage say 30 quid to tell you the lambda is fooked
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Try this link first. The rest of the site very good for the st170.
shunn - it could be a loose cable that re-sat itself or the dirt on the sensor has blown off.
Keep your eye on the fuel, if it's worse then you're better off with replacing them.
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the light came back on for a day or so after i fit the flexible joint.
could it be because i have been bashing and moving around the exhaust system whilst replacing the part??
could it be because i have been bashing and moving around the exhaust system whilst replacing the part??
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Moving the cable could have trigged it off, or the sensor has been knocked off. have you replaced it yet? if not, might be worth it.
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i havnt replaced it yet, it has only come one twice after working on the exhaust then gone off after a day or so.
i think i'l leave it for now and replace it if it comes on again
i think i'l leave it for now and replace it if it comes on again
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