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Author Topic: GVK's Edition 30  (Read 2553 times)

Offline G-olf

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Re: GVK's Edition 30
« Reply #30 on: July 14, 2021, 09:16:59 pm »
Just interested, Did you manage to sort the under boost code?
Perhaps if you're going back to the same guys that mapped it they could do a diagnostic run checking for boost spikes or areas where it cannot meet target. If everything is working ok and no leaks they can then adjust the parameter so this doesn't keep flagging up.

Nice looking car btw  :happy2:

Offline GVK

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Re: GVK's Edition 30
« Reply #31 on: July 14, 2021, 11:10:36 pm »
I will have a word with them, i had someone answer my thread on TFSI tuning Facebook group who also said its a software issue when max boost 2500mbar is requested, on stock MED 9.

It only throw that code at 130 kmh in 3rd...  :innocent:

Thanks, its going in for some track day mods tomorrow.
« Last Edit: July 14, 2021, 11:14:18 pm by GVK »

Offline GVK

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Re: GVK's Edition 30
« Reply #32 on: July 14, 2021, 11:26:41 pm »
Quote
It can be modded that it doesnt go in limp and show 0299 without removing dtc. Its a Softwarething and needs to be done if max is requested ( med9 ecu - 2550mbar )

Offline GVK

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Re: GVK's Edition 30
« Reply #33 on: July 16, 2021, 02:11:03 pm »
Car is much improved .

Had super pro ball joints fitted to give 1.8 degs neg camber

EBC orange stuff race pads.

Geo set up and brake fluid change.

New caliper on ns front as old one leaked! .

It goes round roundabouts like it's on rails.  Can't wait to try it on track.

Top work as ever from Paul & Liam Maxtreme Ltd


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Offline GVK

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Re: GVK's Edition 30
« Reply #34 on: July 19, 2021, 09:20:26 pm »
Getting fuel cuts at full throttle. No fault codes just stumbled in mid range pulls. Do I need a HPFP?


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Offline colesey

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Re: GVK's Edition 30
« Reply #35 on: July 20, 2021, 07:31:45 am »
It’s quite possible, have a read of this thread - www.mk5golfgti.co.uk/forum/index.php?topic=14350.0

I have a stage one k03 car, which spools up earlier needing more fuel, and it felt stronger with the VIS pump despite no changes to mapping or fprv.

Offline GVK

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Re: GVK's Edition 30
« Reply #36 on: July 20, 2021, 07:38:59 am »
It’s quite possible, have a read of this thread - www.mk5golfgti.co.uk/forum/index.php?topic=14350.0

I have a stage one k03 car, which spools up earlier needing more fuel, and it felt stronger with the VIS pump despite no changes to mapping or fprv.
Interesting stuff thanks


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Offline GVK

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Re: GVK's Edition 30
« Reply #37 on: July 22, 2021, 03:48:01 am »
New South boost gauge and Lufi OBD2 mini dash fitted.

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Offline GVK

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Re: GVK's Edition 30
« Reply #38 on: July 22, 2021, 03:49:40 am »
Lufi dash configured

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Offline G-olf

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Re: GVK's Edition 30
« Reply #39 on: July 23, 2021, 04:54:00 pm »
Is the boost still holding 1.5bar? Easier to see now you have the gauges.
Its normal to get spikes but if it holds 1.5 that's quite a lot. Its possible it cant fuel enough.
Are you sure its only got a stage 1 map on there? should a stage 1 request 1.5bar?

Offline GVK

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Re: GVK's Edition 30
« Reply #40 on: July 23, 2021, 09:17:33 pm »
Is the boost still holding 1.5bar? Easier to see now you have the gauges.
Its normal to get spikes but if it holds 1.5 that's quite a lot. Its possible it cant fuel enough.
Are you sure its only got a stage 1 map on there? should a stage 1 request 1.5bar?
Yeah getting fuel cuts it's spiking over 1.5 ....


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Offline Pudding

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Re: GVK's Edition 30
« Reply #41 on: July 24, 2021, 12:26:08 am »
Yeah the MAP sensor only reads to 1.5 bar gauge (2.5 absolute) but it doesn't matter.  I've requested and run 1.7 bar boost (gauge) with no problems before. Have a chat with Vince at Stealth as he can explain it better than me. It's not a big deal.

What RPM is the fuel cut occurring?  Sure it's fuel cut and not the ECU combatting compressor surge? K04s exceed the engine's VE at approx 3000rpm if running greater than 1.4 bar and the ECU goes into 'what the f'ck is happening here mode', which feels like an abrupt stutter, and then the power resumes. 

Stock and Stage 1 don't hit that problem because they only request 0.9 bar and 1.2-1.3 bar respectively.  It's why I keep banging on and on like a stuck record......just don't do 2+ maps!  You can pull back the N75 duty around 3000 to get around it but it just feels like a nasty flat spot when you do that.

Dunno how you got -1.8 with the SP BJs, most I could get was -1.2  :grin:

You definitely need a HPFP if you're running 1.5 bar regardless!  I recommend the Integrated Engineering one as the piston shaft is the same diameter top to bottom, which is a lot stiffer and stronger than the usual method, but the VIS one isn't too bad for the price.





2007 ED30 | Ohlins Coilovers | Revo Map | Plus some other stuff | Is all a GTI needs :-)

Offline GVK

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Re: GVK's Edition 30
« Reply #42 on: July 28, 2021, 02:15:24 am »
Went to Santa Pod Bug Jam. Ran car down strip. Heap of junk was misfiring eml flashing and stuttering. Got codes off OBD eleven

No ,1 cyl misfire and multiple cyl  misfire
.I had a coil in the boot  swapped. It in. No more problem No1 cyl. Coil pack.

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