7500rpm Cut Out

4.2 V8 32v Naturally Aspirated - 414 bhp
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Dallas83
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7500rpm Cut Out

Post by Dallas83 » Mon May 25, 2015 9:17 am

Hey Guys

So as i was trying to keep up with my cousins MP4-12C this weekend i noticed that in some gears once i hit the 7500rpm mark the car cuts out quick and then sometimes it doesn't.

Anyone else get this at all ?

At the same time, i'm starting to wonder if there is anything else going on with the car, it just doesn't seem to pull from over 60+ in the gears. Think i'll maybe need to get it out to MRC for a health check and see what the heck is going on. Thats the first time i've given it the beans and to be honest i really wasn't so confident especially when the brakes started squealing after 15-20 mins thrash - new pads all around too!
Current Cars:

- B7 RS4 (Imola Yellow) - SOLD

- 2013' BMW X5 (White) - NEARLY SOLD

- 2016 RS6 C7 (Exclusive Paint: Porsche Voodoo Blue) - NEARLY HERE

Rick_RS4
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Re: 7500rpm Cut Out

Post by Rick_RS4 » Mon May 25, 2015 9:40 am

cuts out ? as in engine dies? or revvs drop?

when you say it dooesnt pull after 60 is that after a thrash or like oil at 70 - 80 degrees

what fuel do you use? could be knock retarding the timing or the common vac leak

jaysrs4
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Re: 7500rpm Cut Out

Post by jaysrs4 » Mon May 25, 2015 9:48 am

First things first, your RS4 v's MP4-12C isn't ever going to work :wink:

Are you sure you're not running a fault? Obviously no EPC light - I had a dirty MAF and it limited RPM to 7,500, no kick at 5,250, it just went in to safe mode.

Best thing would be it find someone with Vag Com first just to check its not something silly and easily fixable.
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Dallas83
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Re: 7500rpm Cut Out

Post by Dallas83 » Mon May 25, 2015 9:51 am

Rick_RS4 wrote:cuts out ? as in engine dies? or revvs drop?

when you say it dooesnt pull after 60 is that after a thrash or like oil at 70 - 80 degrees

what fuel do you use? could be knock retarding the timing or the common vac leak
Hey Rick

Its like the revs drop off , but you get this loud sound of air being blown out from under the bonnet.

I never give it the beans until its been properly heated up, so its usually sitting around 90-100 before i put my foot down.

Using 98 fuel, but i have on occasion put 95 in when i've stopped somewhere that didn't have 98. I'm starting to think it could be this vac leak problem, but i wouldn't know the first place to start with that...
Current Cars:

- B7 RS4 (Imola Yellow) - SOLD

- 2013' BMW X5 (White) - NEARLY SOLD

- 2016 RS6 C7 (Exclusive Paint: Porsche Voodoo Blue) - NEARLY HERE

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Dallas83
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Re: 7500rpm Cut Out

Post by Dallas83 » Mon May 25, 2015 9:56 am

jaysrs4 wrote:First things first, your RS4 v's MP4-12C isn't ever going to work :wink:

Are you sure you're not running a fault? Obviously no EPC light - I had a dirty MAF and it limited RPM to 7,500, no kick at 5,250, it just went in to safe mode.

Best thing would be it find someone with VAG com first just to check its not something silly and easily fixable.
Haha, yes it definitely isn't a car that the RS4 can compete with , but nevertheless it was fun. Although i was loving the drive i couldn't help but miss my 981 Cayman S which was just superb for keeping up with these supercars on twisty roads.

Going to head over to my mates who has one and see what its bringing up...
Current Cars:

- B7 RS4 (Imola Yellow) - SOLD

- 2013' BMW X5 (White) - NEARLY SOLD

- 2016 RS6 C7 (Exclusive Paint: Porsche Voodoo Blue) - NEARLY HERE

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Dallas83
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Re: 7500rpm Cut Out

Post by Dallas83 » Tue May 26, 2015 8:30 am

Sooooooooooo....... it turns out that i'm an absolute idiot (something i semi knew, but not to this level)!

I'm sure everyone will have a laugh when i tell you that the problem with my car has been the fact that when i installed the carbon intake :piss: i kinda sorta put the MAF in upside down so it wasn't reading anything at all.... Put it back in the right way and she's running fine now :bash:

(please be sensitive with the comments :lol: )
Current Cars:

- B7 RS4 (Imola Yellow) - SOLD

- 2013' BMW X5 (White) - NEARLY SOLD

- 2016 RS6 C7 (Exclusive Paint: Porsche Voodoo Blue) - NEARLY HERE

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toyneg
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Re: 7500rpm Cut Out

Post by toyneg » Tue May 26, 2015 8:39 am

Dallas83 wrote:Sooooooooooo....... it turns out that i'm an absolute idiot (something i semi knew, but not to this level)!

I'm sure everyone will have a laugh when i tell you that the problem with my car has been the fact that when i installed the carbon intake :piss: i kinda sorta put the MAF in upside down so it wasn't reading anything at all.... Put it back in the right way and she's running fine now :bash:

(please be sensitive with the comments :lol: )
haha, well I bet that was a relief!!
Glacier White 2017 S3 Saloon with all the Tech.
Gone but not forgotten - B7 RS4 Saloon Black - H&R spacers, Tints, Gun Metal Alloys, MRC Stage 2, Pre Cats, Milltek Non Res, K/W Springs, MRC Full Carbon clean - 431ps
previous - B6 A4 1.8T S-Line 215PS

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Dallas83
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Re: 7500rpm Cut Out

Post by Dallas83 » Tue May 26, 2015 10:03 am

Yeah total relief. In saying that though, we did some data logging and it seems as though the MAF isn't working as well as it should be, so thinking about buying a new one.

Anyone know where you can get these for a good price ?

Cheers
Michael
Current Cars:

- B7 RS4 (Imola Yellow) - SOLD

- 2013' BMW X5 (White) - NEARLY SOLD

- 2016 RS6 C7 (Exclusive Paint: Porsche Voodoo Blue) - NEARLY HERE

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toyneg
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Re: 7500rpm Cut Out

Post by toyneg » Tue May 26, 2015 10:45 am

Dallas83 wrote:Yeah total relief. In saying that though, we did some data logging and it seems as though the MAF isn't working as well as it should be, so thinking about buying a new one.

Anyone know where you can get these for a good price ?

Cheers
Michael
they're not a lot of money, like £120 ish, i just got mine from my local Audi Parts dept
Glacier White 2017 S3 Saloon with all the Tech.
Gone but not forgotten - B7 RS4 Saloon Black - H&R spacers, Tints, Gun Metal Alloys, MRC Stage 2, Pre Cats, Milltek Non Res, K/W Springs, MRC Full Carbon clean - 431ps
previous - B6 A4 1.8T S-Line 215PS

RS6BRIT
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Re: 7500rpm Cut Out

Post by RS6BRIT » Tue May 26, 2015 9:57 pm

I think I paid about 110 from TPS but it was a while ago so I could be wrong.

Rick_RS4
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Re: 7500rpm Cut Out

Post by Rick_RS4 » Tue May 26, 2015 11:00 pm

TPS

what g/s are you getting?

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