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Problem: no power, dtc: p1671, p0191 (both: fuel pressure Regulator)
I don't have full wiring for engine, only info about pressure regulator that it is 2-terminal pwm controlled solenoid.
My scanner can activate this regulator, when i did it, no sound or klick noticeable with finger touching the solenoid. Testlight will light up normally when connected into unpluged connector and output activated (1sec on, 1 sec off). I don't have scope today but seems like it wasn't pwm test signal.
I took it off the engine and feeded 12v through testlight and then directly 12v both polarities- there was no moving of the pin or any sound. Coil resistance 2,2 ohm.
Is this test conclusive that pressure regulator is faulty?
Thanks for replay. Already did put in new pressure regulator solenoid... car is fixed. Tho...interestingly there was also no clicking or moving with the new solenoid. I tried to energize coil through incandescent testlight, maybe it wasnt enough voltage then.
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