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Reduced eng performance

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Reduced eng performance

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Old 04-15-2018, 06:57 PM
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Reduced eng performance

09 ssHHR 56kmi 5 spd reduced eng performance warning came on, went into limp home mode using synthetic oil , the warning system was still set to original system , raised hood everything is still hooked up , IDEAS? TERRY
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Old 04-15-2018, 07:12 PM
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Check Engine Light on ? Even if it isn't, you need to pull the codes. You have one (or more ) that has triggered the reduced power.
Post them up here (numbers only, no descriptions) and we should be able to point you to the problem.
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Old 04-16-2018, 08:15 AM
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X2, codes please, and how old is that battery?? Original??
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Old 04-16-2018, 08:54 AM
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I think normally the reduced power problem is 9/10 times related to the throttle body and/or accelerator pedal, no?
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Old 04-16-2018, 09:24 AM
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Originally Posted by aradmahogany View Post
I think normally the reduced power problem is 9/10 times related to the throttle body and/or accelerator pedal, no?
Not all the time. OP hasn't provide enough information yet.
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Old 04-16-2018, 10:11 AM
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CODE P0087 [fuel rail pressure too low?]
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Old 04-16-2018, 10:37 AM
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Intank fuel pump or regulator

https://www.obd-codes.com/p0087
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Old 04-16-2018, 10:49 AM
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HPFP? Or is that a different code?
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Old 04-16-2018, 11:26 AM
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The HPFP could effect rail pressure, I am sure.
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Old 04-16-2018, 02:19 PM
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So will the fuel pressure regulator and the low pressure pump, I just read the article for the code, it doesn’t mention anything about HPFP
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