Thread: Engine Performance Problem
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Old Jul 7, 2018 | 12:45 PM
  #30 (permalink)  
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KDW4Him
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Joined: Nov 2011
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From: Alma, MI
Default Re: Engine Performance Problem
Originally Posted by Raynger
On my 05 srt-6, I replaced the Air Intake Temperature sensor and the IC from Needs Wings. Afterward I still have the same issue with loss of power after about 20 minutes of driving.
Is there something else that I can look at to resolve the problem.
If this were my car and since I am an electronics guy who has a volt/ohm meter I would start at the pump. Is the fuse good? Do I have power to the pump after the engine hits 1300 RPM? Can I feel the pump running? Open the coolant isolation valves if installed to remove any air trapped to the pump. What model pump was installed?

Next, if you replaced the temp sensor, I would compare the resistance of the old sensor to the new sensor. Are they the same? If different which one is correct?

Since we know the supercharger is working the first 20 minutes we know the signals to the clutch and the clutch are good. Hook up an OBDII device that can measure live data to monitor the temp of the intercooler air. At what temp. does the supercharger drop out?

These diagnostics might point to the culprit.
 
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