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Author Topic: broken mv6  (Read 1591 times)

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Mole

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broken mv6
« on: 27 July 2007, 11:51:43 »
my car has coughed, spluttered and stopped altogether. it is a 99 ex police mv6. i started it again and all seemed fine for 30 seconds or so then the eml flashed a couple of times whilst the engine spluttered. then the tc light came on as well, it spluttered some more then died. i couldn't get it to start again until i pressed the tc button. the engine fired straight away but only lasted a few seconds when the tc and eml lights flickered and the engine cut out again. i have got fault codes 31 and 73 neither of which point to the tc. can anyone help me
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Dazzler

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Re: broken mv6
« Reply #1 on: 27 July 2007, 11:59:35 »
Maybe crankshaft sensor :-/
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Mole

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Re: broken mv6
« Reply #2 on: 27 July 2007, 12:08:32 »
the crankshaft sensor is only about 2000 miles old. it is a genuine vx part from my local main dealer and has the same part number as the one it replaced.
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TheBoy

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Re: broken mv6
« Reply #3 on: 27 July 2007, 12:20:40 »
Any fault codes stored?
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Mole

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Re: broken mv6
« Reply #4 on: 27 July 2007, 12:57:49 »
31 and 73 are the only ones
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TheBoy

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Re: broken mv6
« Reply #5 on: 27 July 2007, 13:00:50 »
Quote
31 and 73 are the only ones
31 normal if engine not running. 73 is MAF iirc (I will double check). Unlikely MAF failed, more likely an air leak.
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TheBoy

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Re: broken mv6
« Reply #6 on: 27 July 2007, 13:03:51 »
yup, MAF.  Unlikely to be MAF as said, so look for unmetered air entering engine.
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Mole

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Re: broken mv6
« Reply #7 on: 29 July 2007, 12:41:57 »
cleaned the MAF with a cotton bud as suggested and it seems to be fine now.
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Elite Pete

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Re: broken mv6
« Reply #8 on: 29 July 2007, 13:12:23 »
Just a thought, if you have one of the replacement airfilters which are oiled (ie K+N) the oil can contaminate the MAF sensor.
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