GTM stage 1 S/C - Throttle not opening fully? Or boost leak? Please help!

fillerbunnie

Ahhhh this looks very promising!! Problem is I don't have P0101 at all It's missing from my Uprev rom... Did you have to make any changes to have these options? I don't have the 2 DTC settings for the MAP sensors either

pokeyl

It will not set the code, trust me, if it did I would not have spent 8 month and 3K USD to find it.

If you do not have that code, look at all the other codes for one with the same name.

Do you have P0106?

You need someone with the same year and Aus make that has a good tune, copy his setting. Good luck

Last check with uprev see if you have the current ROM reader with full access to all the code.

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It's not my fault I'm old, I was born a very long time ago!

fillerbunnie

I've just grabbed all the Uprev ECU dumps for EU/AUS models (I'm 1EL6B, but I downloaded all the others with the rom editor) - They are all missing 101, 106, in fact all the MAF & MAP performance/range/correlation settings (and a good 10-20 other DTC's) are missing! Nothing similar in name either.

The JDM and US ECU dumps from Uprev have these codes, but the EU/AU dumps don't, making me think the issue is at Uprev's end in not adding these DTC's to the ROM dumps. I've just emailed them asking why they are missing.

My car definitely has a MAP sensor, so I'm certain the codes are built into the ECU... We will see what Uprev comes back with!

fillerbunnie

OK, so I disconnected the MAP sensor and the ECU throws P010A. I have no P010B, but I do have P010A,C,D.

With the MAP sensor disconnected, I get full boost followed by crippled performance shortly after. I disabled P010A,C & D, and cleared codes, and with the MAP sensor still disconnected I get the same massive throttle lag...

So I'm fairly sure it is MAP sensor related, but it seems like my ECU probably doesn't have the MAP/MAF performance DTC's at all.

So my question is, how the F*** do I fix this!? I can't disable the DTC because my ECU doesn't have it, the DTC I do have doesn't stop the "safe mode" and leaving the MAP sensor unplugged doesn't help... So depressing!

I guess a better start would be if anyone has definitive information on how the MAP sensor's output is used by the ECU? Is it purely a safety device? I feel like there has to be a magic bullet for this problem, I just don't know what it is...

ANMVQ

Who tuned the car? your ECU has to have it somewhere, if it didn't the sensor wouldn't be on the car :/.

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14 Q50 AWD, ARK, ECUTEK (SEB), Takda,

Kzonts

I thought anyone with FI has a custom tune and only use a canned tune to drive it to the tuner, or use it as a baseline for the custom tune.

fillerbunnie

Sorry, I should clarify - It has been significantly modified, but the starting point was the GTM base tune. AFR targets are fine and timing is conservative.

Kzonts

Any updates? Curious to know the status

pokeyl

No, the can tine is 80-85% and you can drive on it, very safe.

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It's not my fault I'm old, I was born a very long time ago!

lj909

Really consider this. Ecutek=full control. Timing, throttle (real throttle control), you could even have hybrid MAF/MAP tuning.

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PW 07 HR350Z R.I.P. Totaled by 82yr old woman
2010 40th Anniversary 370Z

fillerbunnie

Update:

Still F***ed.

I'm certain it's the MAF/MAP sensor...

Sam at GTM was useless, as was Uprev. Basically I'm physically limited by not being able to disable this code.

The original service manual has the P0101 and P010B codes in it, yet Uprev doesn't have them in my rom.

EDIT: after checking out the MAP sensor, it can only read from about -30 to about 1psi. 1psi equates to 5V output (on a 5V input). I'm going to remove the MAP sensor, grab a couple of resistors and feed a constant 3v into the MAP sensor input signal to see if this helps.

The service manual doesn't suggest that P0101 or P010B could even relate to the MAP sensor though, so there is a chance I'm screwed... May be talking to ECUTek soon... Uprev is a joke.

fillerbunnie

So, just did the following:
- cleaned TB's
- cleaned MAF's
- reset TBs, ECU and idle air volume

No change, still crippling ECU mode

I then replaced the MAP sensor with a voltage divider putting out 3.2v. this didn't throw a MAP error, but identical symptoms occured (possibly triggered slightly later, I seemed to have a good 5 minutes of driving before the ECU reverted to ****-mode)

Anyone ever tried an ECU swap? I'm tempted to buy an ECU that UpRev supports disabling P0101/B and dropping it in...

TBatt

SpecialtyZ sells the MAP sensor from the GTR that is a drop in replacement for the 370Z MAP and it is designed to read boost. That is what I am using with a Ecutek tune from Seb. Contact Seb and see if he can offer you some advice.

EcuTek Tuning - 370Z/G37

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RJM pedal, Hotchkis Sway Bars, FI TDX, FOG Light, Z1 Slotted Drilled rotors, Stillen SC, Quaife ATB, Z1 Oil cooler, AEM Gauge Set, Galeforce gauge mount, Avant Garde M590 Hypersilver w/RE-11, TopgunZ A2A kit., ECUtek tuned by Seb: ROLL TIDE!

kentmo280z

Are you still using the Turbosmart BOV? Mine fluttered badly, so I changed to lighter springs AND firmer springs , still fluttered and seamed to blow off early when using a lighter spring. I switched to a Synapse valve, still flutters but seams to work fine, though it performs better ( less flutter) when I keep it lubed.

I also get P101 code a lot when I start up cold, so I bought a cheap laptop and keep it and my uprev cable that I got with my SC kit in the car.
I downloaded my uprev program onto the computer and reset the code when it pops up. Which seems to happen when the car sits for more than a couple days.