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Is a 95ECU on a VQ35 still the way to go?

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Old Sep 19, 2005 | 12:46 PM
  #1  
MarcL's Avatar
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Is a 95ECU on a VQ35 still the way to go?

Due to some other unrelated things this summer, my VQ35 project took a back seat.. Those things are getting finished, so I will be back on the project real soon.

I am just wondering, is the best method to get the VQ35 running still to reconfigure the engine to run on the 95 ECU? Or has someone come up with a method to keep the variable cam stuff?

Thanks.
Old Sep 19, 2005 | 06:07 PM
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I didn't know you had to do any reconfiguring of the ECU to get it to run a VQ35.
Old Sep 19, 2005 | 08:20 PM
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Are you sure you're willing to do the work for this swap if you won't even research it. It takes about 30 seconds to find this out even using the free search
Old Sep 20, 2005 | 08:27 AM
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Originally Posted by scrhale
I didn't know you had to do any reconfiguring of the ECU to get it to run a VQ35.
Last I checked, the VQ35 had to be modified to use the VQ30 ECU. This disabled the variable cam timing, and also required that the throttle body be change along with some other parts.


Originally Posted by motocross416
Are you sure you're willing to do the work for this swap if you won't even research it. It takes about 30 seconds to find this out even using the free search
Maybe I am using the search wrong, but the terms I searched on turned back a ton of information. I spent some time looking through some of it, but was unable to be sure on what the CURRENT options are. If you have a link to some up to date information on this, I would appreciate it.

Keep in mind, I am NOT doing a conversion on a Maxima. Much of the information is irrelevant to my project. I only need to get the VQ35 running at optimum performance.

Thanks
Old Sep 20, 2005 | 08:37 AM
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Originally Posted by MarcL

Keep in mind, I am NOT doing a conversion on a Maxima. Much of the information is irrelevant to my project. I only need to get the VQ35 running at optimum performance.

Thanks
Optimum performance requires operating VCT and VQ35 ignition timing, which means ecu and engine harness along with the engine.
Old Sep 20, 2005 | 01:26 PM
  #6  
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Originally Posted by Stephen Max
Optimum performance requires operating VCT and VQ35 ignition timing, which means ecu and engine harness along with the engine.
I realize that.. So, maybe a better question is... Has a method been developed to run the engine in this configuration? When I last checked in to it, there was no much luck in getting the 2002 vintage ECU to run without all of the other "stuff" in the car.. Like the trans, and body control systems.

My project only uses the engine itself. I have no other nissan components.
Old Sep 20, 2005 | 01:49 PM
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There is a way to get it working. Some one posted up about it not too long ago. It wasnt a full rewire.

http://www.forums.maxima.org/showthr...light=painless
Old Sep 20, 2005 | 02:24 PM
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I have read many threads/posts and no where is it mentioned that you have to manually disable VTC or tinker with the TB. I was thinking of tossing the 00-01 TB on there if I did the swap. Is this not smart?
Old Sep 20, 2005 | 02:28 PM
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I am using a Pathy TB. I dont think anyone said you have to disable the VTC, its just not going to be hooked up.
Old Sep 20, 2005 | 02:30 PM
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No it's quite dumb. The 00 TB is smaller. 'Modding' the 02 TB takes about an hour. Or just get a pathfinder TB. We were just too lazy to do so.
Old Sep 20, 2005 | 02:43 PM
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Originally Posted by MarcL

My project only uses the engine itself. I have no other nissan components.
What exaclty is your 'project', you have to help us help you.
Old Sep 20, 2005 | 05:52 PM
  #12  
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I never understood why you have to mod the 02 TB? Is it because of that whole drive-by cable/wire . I don't know what those mean. Anyway ... I thought with Spaces, redrilled CAMS, and 3.5 TB to Headers you are good to go.

To restate the obvious ... is ECU work only required for pulling optimum performance?
Old Sep 20, 2005 | 08:17 PM
  #13  
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Yes. But with all the timing advance we could do there may be 20-25whp missing.
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