- Aug 23, 2002
- Cacky Lacky, USA
Really appreciate the help here. Question, I'm not sure what vref is so I'll need to research that.
Forscan shows my frp v at .55v with key on engine off. 2.77v key on engine idle. Does this tell us anything??
*** KOEO Reference voltage should be around 3.3 VDC, HOT IDLE reference voltage should be around 2.8 VDCBattery voltage
OK. If 5 VREF is good @ FRP sensor. Sounds like 02's are working too. Next verify your FRPS is good. Once you verify lets us know.Tested 5v to the frps.
The o2's are brand new. Less than 20 miles. I see them switching on forscan so they're definitely doing something.
If you're are getting this same code P0190 @hotcobra03 . I would advise data logging your VREF voltage and FRP to see which is dropping out and start troubleshooting from there to isolate the issue. If you know of anybody who uses or has Ford IDS to scan your car it could be diagnosed within an hour.How close to stock is this car.
These codes have vacuum
That appears to be cross of codes.
On my 03 vacuum hoses have been cause of o2 codes for me
For me the main pcv line ,,elbows soften and Crack.
This tiny hoses. I've found restrictions in.
I had taken off my vacuum harness and checked each line
With manually blowing and sucking thru ...
Throttle body to air inlet tube is another seal that's cracked on mine before it leaked and 1 time broke and held throttle open
Odd thing is your only seeing 1 bank. Po172
But got both on 1132/52
I'm interested in findings being
Po190 is a code I was having last time using my car .
For me I'm thinking fuel pump is getting tired .422k can't ask for much more .
I noticed I don't get problem till I go past half pedal .
My car will go into a limp mode ,run but like crap, with hand tuner while driving I can clear code and it's fine again till half pedal,,
I haven't done much yet to diagnose mine.If you're are getting this same code P0190 @hotcobra03 . I would advise data logging your VREF voltage and FRP to see which is dropping out and start troubleshooting from there to isolate the issue. If you know of anybody who uses or has Ford IDS to scan your car it could be diagnosed within an hour.