July 27, 2009, 7:24 pm
I own a ST170 54 plate, havent had no problems what so ever within the 2 years i have owned her.
but recently my engine management light keeps coming on then going off after a day or 2. and this keeps happening, 2 days ago it came on then yesterday night it went off!
i dont understand its like it cant make up its mind, it drives perfectly starts first time no hesitation, no leaks or anything, i dont understand it lol
i dont really wanna pay out 90 quid for ford too just link my car too a computer and may or may not know what the problem is!
any help would be appreciated
July 28, 2009, 1:01 pm
someone here must have some idea!!
pleaasssseee this is drivin me nuts!!! lol
July 28, 2009, 3:53 pm
its most likely a sensor with an intermittant fault but without reading the codes when the light is illuminated its hard to say which one.
July 28, 2009, 6:25 pm
[quote name='mintalkin' post='34934' date='Jul 28 2009, 04:03 PM']its most likely a sensor with an intermittant fault but without reading the codes when the light is illuminated its hard to say witch one.[/quote]
just an idea (and im not a mechanic) but couldnt you do the dashboard trick and see what dtc code is being read? surely there linked in some way?
July 28, 2009, 7:03 pm
If you put the key in the ignition but dont turn it,hold the trip button down and while holding it turn the ignition key to position 2 you put the hybrid cluster in test mode.the gauges will do a compleat sweap.let go of the button and press it a few times till you get to the d t c codes. They will start with a p followed by numbers. Wright the down and send me a message and i will try to see if i can come up with some advise.
July 29, 2009, 1:01 am
cheers for the advice people, but i have done the dashboard trick and it says "none" so the fault isnt being registered there, i tried the dashboard trick while the management light is on and off. but no luck what so ever. bit confusin relle!.......... and did i mention the bloody light is back on!!
July 29, 2009, 10:01 am
That "dashboard trick" only retrieves cluster codes.
You need to get the codes retrieved from the pcm , if you ring round you'll find independents that can do it cheaper than the dealer , experience suggests an oxygen sensor/cat fault or maybe inlet manifold runner fault , but until you get a code it's all guess work
July 29, 2009, 2:49 pm
okay thanks mate!
August 9, 2009, 8:15 pm
[quote name='Braders' post='35129' date='Jul 29 2009, 02:59 PM']okay thanks mate![/quote]
i found out what is wrong with my car, its the pre cat lambda sensor.
i was wondering how much a new one of these would cost and whether i could just replace it instead of being charged loads at ford?
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