New to me Supra with AEM Infinity running horrible | AEM
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SupraSa1yan
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Last seen: 1 year 12 months ago
Joined: 08/01/2018 - 23:08
New to me Supra with AEM Infinity running horrible

Hi guys,

I purchased a 93 USDM TT manual converted to a S366SXE single turbo with everything upgraded including AEM Infinity 6.

The idle on the car is very rough, constantly bouncing around 1000 RPM.

I've attached a log of me just trying to drive around.

So far, I've checked boost leaks, exhaust leaks, and flushed all fluids. 

Any help would be greatly appreciated!

 

leo2.itlog

leo2.itssn

AEM_HB
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Last seen: 12 hours 30 min ago
Joined: 11/07/2016 - 09:22
Could you try taking another

Could you try taking another log? The itssn you posted does not look correct.

This time connect the laptop to the computer and open the Alltabs_506 layout in Infinity Tuner and record a PC log of the problem.

Thank you

SupraSa1yan
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Last seen: 1 year 12 months ago
Joined: 08/01/2018 - 23:08
https://drive.google.com/open
SupraSa1yan
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Last seen: 1 year 12 months ago
Joined: 08/01/2018 - 23:08
any one?

any one?

AEM_JG
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Last seen: 12 hours 25 min ago
Joined: 06/03/2016 - 08:12
Your cal file appears to be

Your cal file appears to be locked, many of the pertinent tables are displaying the mininum values and not what is actually in the calibration. You may need to get in touch with the previous owner and discuss with them if their tuner locked the calibration. 

AEM_SB
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Last seen: 2 months 3 weeks ago
Joined: 06/07/2014 - 14:29
As mentioned, there is a lot

As mentioned, there is a lot of data missing from that log due to the previous tuner locking the calibration. You won't be able to view or edit most of the tables in the ECU unless you can get the password from the tuner to unlock the calibration,  you may need to start over from scratch.

I do see one thing in the data that might prevent the car from running properly: FuelPressure [psi] is not tracking MAP [psi], which suggests the vacuum line is not connected to the fuel pressure regulator. It's very uncommon to leave that vacuum line disconnected on a turbocharged car, so I'd advise to check that on the car before trying to do anything with the calibration. Fuel pressure will be higher than normal at idle if the regulator is not getting a vacuum signal, and although the ECU can be configured to compensate for the fuel pressure being different we can't see if that's been done in your map since it's been locked. The pulsewidths in the log are very short suggesting the car has high-flowing injectors installed, the car's rough idle may simply be a compromise that was made in order to run big injectors on gasoline.

 

Hope that helps,

SB

SupraSa1yan
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Last seen: 1 year 12 months ago
Joined: 08/01/2018 - 23:08
It looks like it’s installed
AEM_JG
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Joined: 06/03/2016 - 08:12
Your image is not displaying.

Your image is not displaying.

SupraSa1yan
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Last seen: 1 year 12 months ago
Joined: 08/01/2018 - 23:08
Hope that link works now.

Hope that link works now.

AEM_JG
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Last seen: 12 hours 25 min ago
Joined: 06/03/2016 - 08:12
Where does the other end of

Where does the other end of the line run to?

SupraSa1yan
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Last seen: 1 year 12 months ago
Joined: 08/01/2018 - 23:08
It runs into the intake

It runs into the intake manifold, specifically a VWR manifold.