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Old 2nd July 2015, 12:53 PM   #101 (permalink)
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Ah that's ok. This was base tune just to see how it was going. 1.0bar on 95 got 5 maps after that one.

Good to gear it's going better. Mine had a bit of oil but deffo no soot.
Any log since completion of the tune?
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Old 2nd July 2015, 07:50 PM   #102 (permalink)
paulmc is looking for more power 750-800bhp is not enough
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Yes but offshore just now. Can easy post them once home next week
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Old 2nd July 2015, 09:42 PM   #103 (permalink)
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What modifications have been done? Are you running aftermarket BOV's? Do you have any stock logs?
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Old 3rd July 2015, 12:27 AM   #104 (permalink)
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What modifications have been done? Are you running aftermarket BOV's? Do you have any stock logs?
Stock bovs or GFB bovs. No difference. The logs are stock at part throttle.
Only mod now is GFB and Y pipe with stage 2 Cobb.

Does exactly the same thing when stock too. It's really annoying.

Probably intake leak, but I haven't found it yet. Pulls hard WOT.
Bit wooly on the pick up though.
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Old 3rd July 2015, 12:27 AM   #105 (permalink)
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Yes but offshore just now. Can easy post them once home next week
Star
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Old 3rd July 2015, 12:52 AM   #106 (permalink)
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Here's a log from today. Off throttle overrun to very light throttle cruise.
datalog20.csv
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Old 3rd July 2015, 08:00 AM   #107 (permalink)
paulmc is looking for more power 750-800bhp is not enough
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you not got a full default log, fuel trims etc. WOT log would be good as well?
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Old 3rd July 2015, 11:18 PM   #108 (permalink)
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Fuel trims are in there. Long and short.
WOT isn't the problem, at least for now. It's close to idle cruise which is confused with itself. Pulling 5 or 7% out of long terms, and going +20% on shorts the second the loud pedal is touched.

Front wheels are coming off tomoz, checking the turbos.

Gotta be an air leak, hasn't it?
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Old 4th July 2015, 07:59 AM   #109 (permalink)
paulmc is looking for more power 750-800bhp is not enough
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Yeah but I would like a look of standard logs at WOT, just to see what's what and how they look
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Old 4th July 2015, 12:20 PM   #110 (permalink)
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It's worse than that. Took the front wheels off. Power steering is leaking too.
It all looks like a 23 year old Mitsubishi GTO twin turbo. Except mine was cleaner and fault free. I'm really pissed off with this car. All I see is people smashing hell out of their GT-R, going on track days, videos on youtube of cars getting thrashed. Not a single issue. I'm very mechanically sympathetic, and I have treated my GT-R with kid gloves. I've really taken care of it.

It was all fine until 11k miles, then all this shit started.

So, something is seriously wrong with the engine control. Power steering is leaking, and the level in the reservoir is just touching the bottom of the dipper. The bell housing needs replacing, and has done since it was still in warranty, apparently. I've already had to replace leaking injector seals. So sad.

It keeps shredding the inside edge of the tyres, despite being setup for the road, so the tyres go in the bin with 5mm of tread on them.

I've never had such a demoralising experience in all my 47 years. And I've been married twice.
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Old 4th July 2015, 12:24 PM   #111 (permalink)
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Yeah but I would like a look of standard logs at WOT, just to see what's what and how they look
Soz, it's not standard. It's Cobb Stage 2, and LC5 TCM.
But stock map does the same thing, with respect to the problem.
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Old 4th July 2015, 01:39 PM   #112 (permalink)
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Firing off in all directions now

I've given Nissan UK Customer Services all the details. And all the terrible experiences I've had with Nissan dealers, and told them straight, I want all this sorted out for free.

Bell housing - should have been a recall.
Steering lock - had the letter, no need so haven't yet.
Power steering leaking, only 30k miles.
Engine control all messed up since I got it back from Westway Oxford.
Transmission oil change service £768, which they didn't actually do!
Drivers door misaligned by Marshalls Cambridge, when they tried fixing the rattle.
Tyres getting destroyed, despite driven like a baby carriage.
Only used for commuting, and all 30k miles by me.
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Old 5th July 2015, 08:31 PM   #113 (permalink)
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You need another GTO .
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Old 5th July 2015, 10:58 PM   #114 (permalink)
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All things considered, the GTO was the best car. I should have kept it.
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Old 8th July 2015, 07:37 PM   #115 (permalink)
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Well, here's another possible.
I just disconnected the PCV from the inlet manifold, and plugged the inlet hole, venting crank to atmosphere. Idle LTFT are 94 and 96. STFT were 100 and 100, as you would expect with PCV connected. Disconnected STFT went to 105 and 105, which adds up to 99 and 101, which is pretty much bang on.

I'll be changing the PCV at the wend. Coz the other symptom is seeping from the valve cover seals. Seems I'm pressurising the crank case on boost. Eek!

See what's what
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Old 8th July 2015, 07:59 PM   #116 (permalink)
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Even if I put my finger over the PCV valve pipe, it still needs to add fuel to hit 14.7AFR. Where is the extra air coming from?
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Old 8th July 2015, 08:24 PM   #117 (permalink)
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Ignore that. It's not the PCV. It works fine. Damn it
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Old 8th July 2015, 09:45 PM   #118 (permalink)
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Probably worth doing one of those smoke checks where you pressurise the system with a smoke fog machine and it shows up any leaks. AutoTorque did this on my Evo IX and it showed up a leaking throttle spindles and a leaking inlet manifold gasket.
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Old 8th July 2015, 10:43 PM   #119 (permalink)
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did you do a compression test ?
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Old 9th July 2015, 12:31 AM   #120 (permalink)
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That's this weekend. Another boost leak test, cylinder leak down (bought the tool), and compression. I was holding off on the more worrying stuff

It's about time I got it in bits properly now.
Flashed it back to stock tonight. One last try ref. idle air learn, throttle released, etc.etc. If I didn't know better, I'd say it's going into anti stall.
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