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Author Topic: Flat spot at around 5200rpm since intake  (Read 6332 times)

Offline 56OctyVRS

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Re: Flat spot at around 5200rpm since intake
« Reply #15 on: June 10, 2011, 08:57:29 am »
Mine has a flat spot around this area and I am the same but with the OE engine cover fitted.  I am going to fit the RS4 fuel pressure valve to see if this fixes it.  But I very rarely use that region of the rev band in my daily driving, so it doesnt present itself as an issue to me.
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Offline bacillus

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Re: Flat spot at around 5200rpm since intake
« Reply #16 on: June 10, 2011, 10:53:45 am »
The new logs look better.  :happy2:

I would let the ecu fully adapt to the higher octane petrol then go from there .
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Offline donovan2123

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Re: Flat spot at around 5200rpm since intake
« Reply #17 on: June 10, 2011, 11:20:14 am »
Car is on the 3rd tank of 99. So it should have adjusted fully by now.
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Offline donovan2123

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Re: Flat spot at around 5200rpm since intake
« Reply #18 on: June 10, 2011, 07:44:58 pm »
Bump
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Offline donovan2123

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Re: Flat spot at around 5200rpm since intake
« Reply #19 on: June 13, 2011, 06:25:32 am »
Any ideas guys and girls?
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Offline vRStu

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Re: Flat spot at around 5200rpm since intake
« Reply #20 on: June 13, 2011, 09:33:44 am »
It's classic symptoms of fuel cut IMHO but your logs don't appear to indicate that.

What software is on the car?
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Offline martziniuk

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Re: Flat spot at around 5200rpm since intake
« Reply #21 on: June 13, 2011, 09:52:53 am »
I'm struggling to read the logs in that format  :ashamed:
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Offline donovan2123

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Re: Flat spot at around 5200rpm since intake
« Reply #22 on: June 14, 2011, 09:05:15 pm »
I thought it might have been fuel cut but as said it doesnt show that in logs even though the flat spot is still there pretty bad.

I am going to try running vpower for a few tanks and see if it helps.


Quote from: vRStu on June 13, 2011, 09:33:44 am
It's classic symptoms of fuel cut IMHO but your logs don't appear to indicate that.

What software is on the car?
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Offline donovan2123

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Re: Flat spot at around 5200rpm since intake
« Reply #23 on: June 14, 2011, 09:05:42 pm »
Lol, Why are you struggling to read logs?
Quote from: martziniuk on June 13, 2011, 09:52:53 am
I'm struggling to read the logs in that format  :ashamed:
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Offline martziniuk

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Re: Flat spot at around 5200rpm since intake
« Reply #24 on: June 14, 2011, 09:39:42 pm »
Ahh it was my phone, I can see em on the laptop.
Have you got any AFR logs?
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Offline donovan2123

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Re: Flat spot at around 5200rpm since intake
« Reply #25 on: June 15, 2011, 06:17:38 am »
Is afr the lamba if so then this is on the first log. If its not what block is afr?
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Offline martziniuk

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Re: Flat spot at around 5200rpm since intake
« Reply #26 on: June 15, 2011, 05:52:05 pm »
Found it. It looks ok to me, maybe a little lean I know mine ran a bit richer at stage 1 than that.
Have you seen this thread http://www.mk5golfgti.co.uk/forum/index.php/topic,9196.0.html

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Offline donovan2123

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Re: Flat spot at around 5200rpm since intake
« Reply #27 on: June 15, 2011, 06:56:47 pm »
Yes i have seen that thread! it seems its mainly to do with ko4 cars.
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Offline Poverty

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Re: Flat spot at around 5200rpm since intake
« Reply #28 on: June 15, 2011, 06:59:46 pm »
Quote from: donovan2123 on June 09, 2011, 08:39:35 pm
Since fitting my intake I have had a flat spot at around 5200rpm mainly in 4th, 5th, 6th gear. I have put oem intake back on and car seems fine but noticeable less eager to go. I did some searches and could it ge early signs of pcv? I noticed there has been a few people who have had similar issues after fitting ITG and few other intakes.

Needs hpfp and rs4 valve
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Offline donovan2123

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Re: Flat spot at around 5200rpm since intake
« Reply #29 on: June 15, 2011, 07:01:52 pm »
rs4 valve maybe but im not getting any fuel cuts so cant see it being hpfp?
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