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2020 Challenger Hellraisin Scat Pack.
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check engine light on. Dealer can not seam to fix it. Keeps talking about Dodge Star system what is Star System. 2015 Charger Cat. Thank you in advance with your help.
You should have asked the dealer/service department what the Star System is. I googled this in various ways and nothing came up.

What are the error codes? Is the engine manifesting any signs of any issues? Is the car/engine stock? Miles?
 

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Charger SRT Hellcat
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1,561 Posts
check engine light on. Dealer can not seam to fix it. Keeps talking about Dodge Star system what is Star System. 2015 Charger Cat. Thank you in advance with your help.
What code(s) are displayed on the center display, Catalytic Converter(s)?? What code(s) is the dealer getting?? More info might help...
 

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Star stands for Service Technical Assistance Resource center. It’s for mopar techs to talk to FCA engineers that may have additional resources/info on how to go about fixing a specific problem with a vehicle. There are different levels of support as well. If they cannot help the tech come up with a fix for the vehicle remotely, they will probably send someone to the dealer to remedy the situation.
 

· Super Moderator
Charger SRT Hellcat
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8,638 Posts
I would contact High Horse Performance since your car had been Tuned previously.l from there. Explain What you know.
It probably had some info wiped off trying to return it to stock and some info is still on the pcm.
It would be safer for your engine to contact them then to keep on trying The dealership


Call 1888894111

Linda :)
 

· Registered
2020 Challenger Hellraisin Scat Pack.
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3,224 Posts
Codes P0172 P0175
Both banks running rich.

The suggestion to contact HHP is a good one. HHP apparently supplied some "tune" to accommodate the upper pulley change and possibly the intake modification.

That both banks are running rich suggests a common failure. First thought is the fuel pressure is off. If too high this can result in too much fuel being injected. But my 2nd hand experience is fuel pressure regulators do not fail in a way to provide too much fuel pressure but too little.

Oh, be sure the aftermarket cold air intake system is ok. The intake system before the intake manifold plays a critical role in helping to ensure good air flow, laminar air flow, into the intake system which includes air flowing past/through the MAF. Now IIRC these engines do not use a MAF but some other sensor. Still it is important the air flow be as good as it was with the factory setup to ensure the air flow doesn't affect the ability of the sensor/ECM to determine the correct amount of air being consumed by the engine and to add the proper amount of fuel.
 

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Charger SRT Hellcat
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254 Posts
Discussion Starter · #12 ·
Both banks running rich.

The suggestion to contact HHP is a good one. HHP apparently supplied some "tune" to accommodate the upper pulley change and possibly the intake modification.

That both banks are running rich suggests a common failure. First thought is the fuel pressure is off. If too high this can result in too much fuel being injected. But my 2nd hand experience is fuel pressure regulators do not fail in a way to provide too much fuel pressure but too little.

Oh, be sure the aftermarket cold air intake system is ok. The intake system before the intake manifold plays a critical role in helping to ensure good air flow, laminar air flow, into the intake system which includes air flowing past/through the MAF. Now IIRC these engines do not use a MAF but some other sensor. Still it is important the air flow be as good as it was with the factory setup to ensure the air flow doesn't affect the ability of the sensor/ECM to determine the correct amount of air being consumed by the engine and to add the proper amount of fuel.
Thank you for your help , much appreciated.
 

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Charger SRT Hellcat
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254 Posts
Discussion Starter · #13 ·
Star stands for Service Technical Assistance Resource center. It’s for mopar techs to talk to FCA engineers that may have additional resources/info on how to go about fixing a specific problem with a vehicle. There are different levels of support as well. If they cannot help the tech come up with a fix for the vehicle remotely, they will probably send someone to the dealer to remedy the situation.
Thank you for all your help. This sheds light with STAR.
 
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