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Why does my car like MAF's ?

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Old 13 July 2009, 07:39 PM
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impgb270
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Default Why does my car like MAF's ?

Just had fitted today its 2nd MAF on my 2007 GB270.

First one failed at 20,000 miles and it was 12mths ago - August and today at 39,890 miles its gone again ?

Never brings on the engine light though !

There must be some kind of problem been masked by these failures any ideas ?
Old 13 July 2009, 07:44 PM
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Standard car?
Old 13 July 2009, 07:44 PM
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sparkytrix
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any mods?
Old 13 July 2009, 07:47 PM
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Only mod of any importance to this fault is a deresonated centre section exhaust

Only other mods is to the suspension
Old 13 July 2009, 07:49 PM
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sparkytrix
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no ind kit, or DV then??
Old 13 July 2009, 07:51 PM
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sparkytrix
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in all fairness, once a year, 20k aint too bad, mine failed 3 times in 4 months, so I had a simtek mapped and fitted as it was getting stupid
Old 13 July 2009, 07:57 PM
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No kit, no dump valve ?

once every year ? Surely not on the new 2.5 ?
Old 13 July 2009, 08:03 PM
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Watched the guy doing the fault investigation on it when it was on the standard Subaru dealership laptop and when he was revving it up to 6,000 revs there was a small flat plateu where the fault was developing then it would carry on up to its normal peak.

Dont know if that means anything to anyone on here ?

No fault codes either and he also did a throttle pedal reset that made no differance so the MAF was then changed

Last edited by impgb270; 13 July 2009 at 08:10 PM.
Old 13 July 2009, 08:10 PM
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Originally Posted by impgb270
Watched the guy doing the fault investigation on it when it was on the standard Subaru dealership laptop and when he was revving it up to 6,000 revs there was a small flat plateu where the fault was developing then it would carry on up to its normal peak.

Dont know if that means anything to anyone on here ?
Yeah, it explains why it was replaced in a context where you weren't getting a check engine light.

As a matter of interest, why was the garage investigating in the first place? Had you actually noticed the car driving wrong?
Old 13 July 2009, 08:14 PM
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impgb270
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Yeh, felt the same symptons as last time so got it booked in straight away which was good.
Old 13 July 2009, 08:17 PM
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What were the symptoms? Hesitance/odd noises under boost?
Old 13 July 2009, 08:20 PM
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Hesitance, only mate, can't say I noticed any strange noises.
Old 14 July 2009, 07:42 AM
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Someone as mentioned there is a software upgrade that can be performed by the dealership.

I will give them a bell today as they had never had to change one on a hawkeye before and couldn't believe that this was its 2nd one.

Nige.
Old 14 July 2009, 08:30 AM
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Hi Nige - it is a different throttle map that they can load on.
Old 14 July 2009, 04:43 PM
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should be under warranty for 2 or 3 yrs, dealer told me this when i bought my second in a matter of months. But when he asked is there any mods, i just had green pan at the time NOT COVERED sorry.
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