cam phasing turning off after car restart

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crispeed
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Re: cam phasing turning off after car restart

Postby crispeed » Fri May 06, 2011 10:31 am

You're not the only one experiencing that problem. I as well as other tuners have experienced the very same on this application. On the dyno I would always do a half pull after a restart so that on the next full pull the cam would operate like it should.
This is just one of many problems that I've experience on this particular unit. Don't know what's the deal but it's way over due for some serious updating.
AWD MOTORSPORTS EVO8 GSR 8.75@167 E85
CHARLES/RAW 2JZ S2000 7.77@194 E98
NeillAutoWorks 2JZ S13 7.49@188mph E98 275 radials
MedicineManRacing R32 7.31@188mph E98 275 radials

str8dum1
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Re: cam phasing turning off after car restart

Postby str8dum1 » Tue May 17, 2011 3:24 am

Have you tried various firmwares to see if its still a problem? I am using 1.06now. I wonder if its the same problem with 1.00?

There must be a big rewrite with V1.10 that coming out to control the I/O box. Hopefully someone fixed that bug!!

rcdash
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Re: cam phasing turning off after car restart

Postby rcdash » Sun May 22, 2011 7:48 am

Are you still experiencing the intermittent misfire problem or has that gone away?

I believe that the cam solenoids operate by a negative pulse and are driven on the positive side by the same +voltage line that feeds the coilpacks. I guess I would try to troubleshoot which line into the solenoid is failing (low voltage to the positive side or lack of negative pulse - but for this you really need an o-scope). If both look ok, then maybe it's the solenoid itself and not the Haltech or wiring? That wiring is a tiny gauge, by the way - I was not impressed.

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crispeed
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Re: cam phasing turning off after car restart

Postby crispeed » Sat Jun 04, 2011 2:03 am

Actualy it's not the solenoid because data shows what is exactly happening.
AWD MOTORSPORTS EVO8 GSR 8.75@167 E85
CHARLES/RAW 2JZ S2000 7.77@194 E98
NeillAutoWorks 2JZ S13 7.49@188mph E98 275 radials
MedicineManRacing R32 7.31@188mph E98 275 radials

MR RIZK
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Re: cam phasing turning off after car restart

Postby MR RIZK » Wed Jun 15, 2011 11:19 am

Does anyone see this happen with only the stock ecu in place on a hipo NA car
Does anyone see this happen with a alternate ecu like the FCON which has no native cam control
Does anyone see this happen with a proefi unit

What I'm trying to eliminate is the haltech out of the equation. We can see the graphs in this post and information from other sources that this not just a 'one off'. For instance if we were seeing the same type of results with the FCON we could safely say that it is some other aspect inducing the issue.

PashaS15
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Re: cam phasing turning off after car restart

Postby PashaS15 » Sun Oct 09, 2011 9:02 am

so, has somebody solved this problem??
we have same problem on evo9 this platinum pro plug-in!

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crispeed
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Re: cam phasing turning off after car restart

Postby crispeed » Sat Nov 05, 2011 2:33 pm

PashaS15 wrote:so, has somebody solved this problem??
we have same problem on evo9 this platinum pro plug-in!


That problem and a couple others have been solved in the latest software/firmware for the EVO9 pro plug in ecu.
AWD MOTORSPORTS EVO8 GSR 8.75@167 E85
CHARLES/RAW 2JZ S2000 7.77@194 E98
NeillAutoWorks 2JZ S13 7.49@188mph E98 275 radials
MedicineManRacing R32 7.31@188mph E98 275 radials

PashaS15
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Re: cam phasing turning off after car restart

Postby PashaS15 » Tue Nov 08, 2011 5:21 pm

crispeed wrote:
PashaS15 wrote:so, has somebody solved this problem??
we have same problem on evo9 this platinum pro plug-in!

That problem and a couple others have been solved in the latest software/firmware for the EVO9 pro plug in ecu.


I have to not agree. We have... no, now I can say we had last version (1.10.2) software/firmware on our EVO9 pro plug in ecu but the problem does exist still.
We uninstalled Haltech ecu and installed m800 and problems disappeared. :wink:

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CorrPerformance
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Re: cam phasing turning off after car restart

Postby CorrPerformance » Wed Nov 09, 2011 2:51 am

Ouch, time to go back in there and sort out the bugs again.
Corr Performance Tuning
EFI-101 Graduate 7-16-05
HALTECH & AEM EMS Factory Trained / Cobb / Unichip
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crispeed
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Re: cam phasing turning off after car restart

Postby crispeed » Fri Nov 11, 2011 2:07 pm

PashaS15 wrote:
crispeed wrote:
PashaS15 wrote:so, has somebody solved this problem??
we have same problem on evo9 this platinum pro plug-in!

That problem and a couple others have been solved in the latest software/firmware for the EVO9 pro plug in ecu.


I have to not agree. We have... no, now I can say we had last version (1.10.2) software/firmware on our EVO9 pro plug in ecu but the problem does exist still.
We uninstalled Haltech ecu and installed m800 and problems disappeared. :wink:


Sorry to hear that because I have four applications running with the vary same ecu and our very own own EVO9 that is being used for road racing and the cam functions properly. The problem was there in the beginning but not anymore for me at least.
AWD MOTORSPORTS EVO8 GSR 8.75@167 E85
CHARLES/RAW 2JZ S2000 7.77@194 E98
NeillAutoWorks 2JZ S13 7.49@188mph E98 275 radials
MedicineManRacing R32 7.31@188mph E98 275 radials

millennium
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Re: cam phasing turning off after car restart

Postby millennium » Tue Nov 22, 2011 8:52 am

04 350 with a greddy kit I'm having the same issue. diag'ed the control system and found everything to test out ok per FSM.

Thinking about axing the cam angle control and make it run off another output and make it on/off switch.

binder
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Re: cam phasing turning off after car restart

Postby binder » Fri Dec 23, 2011 2:38 am

Mine is still doing this. 2003 g35.

My cams never work until i do a full pull to redline. I wonder how much this is effecting my fuel economy when i just drive the car since the cams aren't working. I don't like the idea of having to do a WOT pull just to drive the car around with the proper cam adjustments.

Anyone have an idea how to wire the haltech straight to the cam solenoids? Str8dum1 suggested it but i'm not exactly sure how this would "bypass" the stock ecu yet since it goes from stock ecu to haltech then to solenoids. I guess i'll have to start pulling wiring out and see what i can find.

MR RIZK
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Re: cam phasing turning off after car restart

Postby MR RIZK » Fri Dec 23, 2011 10:42 am

My understanding is that the haltech controls the VTC and not via an interceptor style voltage modification. If this is the case then when you monitor InCamB1 - D and InCamB2 - D which is the duty monitors of the solenoids then would you see this as zero? and only after a pull then the monitors will start reading the values.

Unlike others that have hard evidence via dyno plots etc I definitely feel the difference after one or two pulls on the street, This became more obvious when my car had the built motor put in and making more power.

There have been reports of this over time with the haltech but there not been any owner that has confirmed the issue was resolved when switching out to a alternate vendor. I was hoping to see str8dum1 provide some feedback when he switched from the haltech to proefi on the issue disappearing. Would also be good to know if any owner that runs a osiris tuned car has the same issue.

binder
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Re: cam phasing turning off after car restart

Postby binder » Fri Dec 30, 2011 9:05 am

Rich (str8dum1) has zero problems now that he is on the proEFI.

There is something that could be an issue though. The proEFI has the cams hard wired directly from the unit and doesn't go through the oem ecu. So, maybe they have the same issue and the only way to fix it is to go from the EMS directly to the cams without the stock ecu doing anything.

I'm currently looking at hard wiring mine from the haltech but i don't have a wiring diagram to do this. It's a PITA to trace the wires properly and just "hope" i have the right ones.

any help would be appreciated from people at haltech. I have dynos showing mine back to back pulls and the difference in spool. It affects my 6765 spool big time.

MR RIZK
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Re: cam phasing turning off after car restart

Postby MR RIZK » Fri Dec 30, 2011 4:41 pm

Jeff, Check your email

Also with Rich's setup it does not rule out that this is how the factory ecu operates. Connecting directly from the proefi fixes the issue but knowing the oem ecu maybe have a in built "feature" for this anomaly would answer a lot of questions.

For me i'm tossing up the idea to go back to my fcon and use osiris to do the cam phasing adjustment


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