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First time post... hope to start contributing to the forum now! 09 GTS with 93k and excellent maintenance history, recently getting long cranking times and sometimes rough idle at startup. Starter is working properly so we can rule that out - not sure what to tackle first, coils? fuel pumps? HPFP? Durametric codes: 1023 Ignition Coil D Primary/Secondary circuit - upper limit value exceeded 1026 Fuel high pressure implausible - value below lower limit value The 1023 keeps coming back when cleared but never throws a CEL, the 1026 has been very intermittent but will throw a CE