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Author Topic: Code 73 Mass Air Flow Sensor Voltage Low  (Read 2488 times)

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Andy B

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Code 73 Mass Air Flow Sensor Voltage Low
« on: 13 May 2012, 17:27:36 »
Anyone ever have the above fault code come up? The EMl flickered for a few seconds, went off completely, came back on again a few times over a few miles, car seemed to drive OK. EML back off now.  :-\
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RobG

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Re: Code 73 Mass Air Flow Sensor Voltage Low
« Reply #1 on: 13 May 2012, 17:52:12 »
Check for airleaks on all pipework plus the IACV. The code simply means that the air mass reported by the meter is different to what it expected, MAF not necessarily at fault
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Andy B

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Re: Code 73 Mass Air Flow Sensor Voltage Low
« Reply #2 on: 13 May 2012, 18:31:36 »
Quote from: RobG on 13 May 2012, 17:52:12
.... MAF not necessarily at fault

Which is similar to when my diseasal Astra threw an EGR fault .... it was the MAF.

I'll look tomorrow while I'm sorting my oil slick/leak out! New OE cam cover gaskets last year too, but it looks like it's the near side cover that's wet.  :'(
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RobG

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Re: Code 73 Mass Air Flow Sensor Voltage Low
« Reply #3 on: 13 May 2012, 18:32:46 »
Quote from: Andy B on 13 May 2012, 18:31:36
Quote from: RobG on 13 May 2012, 17:52:12
.... MAF not necessarily at fault

Which is similar to when my diseasal Astra threw an EGR fault .... it was the MAF.

I'll look tomorrow while I'm sorting my oil slick/leak out! New OE cam cover gaskets last year too, but it looks like it's the near side cover that's wet.  :'(
Easy one then ;D ;D ;D
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Andy B

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Re: Code 73 Mass Air Flow Sensor Voltage Low
« Reply #4 on: 13 May 2012, 18:40:10 »
Quote from: RobG on 13 May 2012, 18:32:46
...
Easy one then ;D ;D ;D

These things are sent to test us ......  :y :y :y

I presumably failed when I did it last.  :(
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TheBoy

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Re: Code 73 Mass Air Flow Sensor Voltage Low
« Reply #5 on: 13 May 2012, 20:34:20 »
If you can check MAF live data. If that looks OK, keep *very* close eye on it, in case a 19 pops in ;)
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Andy B

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Re: Code 73 Mass Air Flow Sensor Voltage Low
« Reply #6 on: 13 May 2012, 20:47:43 »
Quote from: TheBoy on 13 May 2012, 20:34:20
If you can check MAF live data. If that looks OK, keep *very* close eye on it,
Does the Hungarian software do live data? ;D ;D ;D Other than that I'm using a good old paperclip.  :y

Quote from: TheBoy on 13 May 2012, 20:34:20
in case a 19 pops in ;)
Bl00dy hope not. The last one (OE) was only changed 2 & half yrs ago!  ??? ???

But I will keep an eye on it though. Just used it again, but no sign of the EML  :y
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Re: Code 73 Mass Air Flow Sensor Voltage Low
« Reply #7 on: 13 May 2012, 23:01:30 »
No but I know a man who can. :y
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Andy B

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Re: Code 73 Mass Air Flow Sensor Voltage Low
« Reply #8 on: 13 May 2012, 23:14:02 »
Quote from: CaptainZok on 13 May 2012, 23:01:30
No but I know a man who can. :y

I'd not forgotten about you, but thought you had more important things to think about!  :y :y :y
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Andy B

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Re: Code 73 Mass Air Flow Sensor Voltage Low
« Reply #9 on: 20 May 2012, 16:53:18 »
'New' MAF fitted!
No EML warning light!  :y :y :y :y
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