Codes p1233 and p0190 help please. - Mustang Evolution

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Old 05-17-2013, 01:40 AM   #1
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Codes p1233 and p0190 help please.

I installed some old 24# injectors from an older mustang with the 24# injectors my car wouldn't start forgot to turn the switch back on in the trunk and still nothing. And my exhaust smelled weird, guess the injectors were bad, so I took then off and installed my stock turned the button in the trunk on now I'm throwing a readiness code and p1233 and p0190. Any input

2004 Mustang GT 5 Speed
Full Bolt Ons
370rwhp 470rwtq
12.1 @ 117.9 (1.7) in 1/4th
7.6 @ 92.1 (1.6) in 1/8th
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Old 05-17-2013, 11:40 AM   #2
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P1233 means the fuel system has been disabled, it should clear after a bit now that you have reset the inertial switch--however it may have to be cleared.

P0190 is a Fuel Rail Pressure sensor circuit malfunction, the only possible causes listed indicate a failed Vref (reference voltage) from the PCM. There should be 4.0 to 6.0 V between the brown/white and gray/red wires at the FRP (key on, engine off)...

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Old 05-17-2013, 12:27 PM   #3
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It could just be from when you had the bad injectors on, it wont throw codes until the 2nd start up after it detects an error. Disconnect your battery for 15 mins then drive it and see if they come back
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