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Old 01-05-2016, 03:48 PM
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bawareca bawareca is offline
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Originally Posted by Doug Huffman View Post

I really do think that most integrated circuits have input voltage regulators.
They all do. But the transmission solenoids dont have voltage regulators. At 3-4 volts or more over nominal the solenoids characteristics will change significantly.
I have had 2 N62 powered cars recently that will have similar symptoms. All is good at idle and low RPM. Once the RPM jump over ~2000 the trnsmission will go in safe mode. Having ISTA connected while driving I find the voltage to reach 18-19v. Overvoltage codes were to be found in most modules,7-8 at least.
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