P0190 Driving me nuts - Mustang Evolution

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Old 07-14-2015, 03:28 PM   #1
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P0190 Driving me nuts

Hi everyone as you can see im new to here 😀 , seems like a great community as I've used the forums but never actually signed up but now I found myself here 😄

Anyways sometime last week was giving my car hell on the road and check engine light came on and I pulled over just to check it and it came up p0190 so I figured it was the p0190 bought a fprs and cleared the code. The car hasn't ran right since the code first popped up its like its not making power like it was the code was not on earlier today but I checked once more before I went into work and she is still there once again 😢 any ideas or tips ?
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Old 07-14-2015, 03:33 PM   #2
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Isnt that code for fuel rail pressure sensor? Are you tuned? if not, it might need replaced.
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Old 07-14-2015, 03:34 PM   #3
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Yes or even a possible vacuum leak

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Old 07-14-2015, 03:36 PM   #4
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Yea probally would've helped if I listed mods

2002 Mustang GT
Procharger P1SC Supercharger, 8psi
Procharger Intercooler, Headers,
Borla Off Road X-Pipe Exhaust, Mass Airflow
Upgraded Fuel Injectors
SCT Flash Chip (Excaliber II), Throttle Body, Lowering Springs, Carbon Fiber Hood
-Front 275/40ZR17
-Rear 315/35ZR17
5.0 Short Shifter
3.55 Gears
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Old 07-14-2015, 03:38 PM   #5
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oh wow. Might have failed then. Is everything showing crazy? Such as afr and stuff.
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Old 07-14-2015, 03:38 PM   #6
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Well your code is this
Possible causes

- High fuel pressure
- Low fuel pressure
- Damaged FRP sensor
- Excessive resistance in the circuit
- Low or no fuel
- Wiring harness connector of the fuel pressure sensor
- Fuel Rail Pressure Sensor
- Vacuum leaks
- Fuel



Read more:*http://engine-codes.com/p0190.html#ixzz3ftsiMwtA

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Old 07-14-2015, 03:39 PM   #7
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Well if those are possible suspects. I would start with the easiest fixes. Checking for vacuum leaks, using some good quality fuel system cleaner, etc.
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Old 07-14-2015, 03:48 PM   #8
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Are you running a BAP by any chance?
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Old 07-14-2015, 03:50 PM   #9
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Old 07-14-2015, 03:53 PM   #10
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Fuel pressure is fine no vacuum leaks maybe just another bad fprs by any chance and idk about the bap?
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Old 07-14-2015, 03:54 PM   #11
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Possible bad fpr

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Old 07-14-2015, 05:50 PM   #12
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Here's my data log results if this narrows it down any
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Old 07-15-2015, 10:24 AM   #13
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Their too small to read

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