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The mkiv Supra Owners Club

Problem with AEM V1 (cold Ecu)


Silece2k6

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Hello everybody.

 

I have a problem with my car.

 

When the ECU is cold and I start the engine, the AFR runs 9.5, sometimes> 19.

By the way, run in part only 5 cylinders. The Rpm goes up and down and makes Missfire when I push the throttle.

 

If I heat up the ecu with a hair dryer before, the car runs wonderfully.

 

Now you would think first that the AEM V1 is broken, but we tested the ecu in two supras (hot and cold)

 

In the original Supra everything goes well, but when I install the ECU again in my car, it dives off again (when Ecu is cold)

 

What I have further noticed is when you connect the laptop and the AemPro Software is running it sometimes freezes for few seconds.

 

That makes no sense

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