Mbl35 Posted February 15, 2010 Share Posted February 15, 2010 Got an 09 escape with 3.0, check engine lite on. eec test p0193 frp sensor ckt. high input. Oasis shows no ssms or tsb's. The sensor v pid reads good and no stalling or power issues noted. I tap on the sensor with a screw driver and the pid voltage will spike and then spiked to the top of the screen. Any one had to replace these? Quote Link to comment Share on other sites More sharing options...
Aaron Posted February 15, 2010 Share Posted February 15, 2010 Does it do it KOEO, too? If it does it with out the fuel pump running, i'd say you got a bad sensor. Being an 09, could you compare it to a lot unit? How's the pin fit look on the connector? Quote Link to comment Share on other sites More sharing options...
Mbl35 Posted February 17, 2010 Author Share Posted February 17, 2010 oh shit i said 09 it's an o5-sorry. only cmdtc. i just put the sensor in so i'll see what happens. Pin fit is good. Quote Link to comment Share on other sites More sharing options...
Mbl35 Posted February 17, 2010 Author Share Posted February 17, 2010 Well i just drove it 43 miles. i did'nt complete the monitors though but eec tests p1000. Quote Link to comment Share on other sites More sharing options...
hitechmech Posted February 17, 2010 Share Posted February 17, 2010 When was the last time fuel filter was changed? Had one once with code and would only come back when vehicle driven like you stole and being chased by the police. Figured that out while watching customer drive. Quote Link to comment Share on other sites More sharing options...
Mbl35 Posted February 18, 2010 Author Share Posted February 18, 2010 I also put in a gas filter. Quote Link to comment Share on other sites More sharing options...
Mekanik Posted February 18, 2010 Share Posted February 18, 2010 I can't remember what the DTC was, but I had a few of these on F-Series that would have a code for the FRP sensor, and it was actually a loss of fuel pressure that was the problem The code would set when there was low fuel pressure. One of the vehicles had a brand new FRP sensor and it had crap in the fuel tank. When I looked at the pinpoint test, it was pointing toward the FRP. I will tell you one thing, they aren't accurate. If you put a gauge on the system it will read about 10psi different from the FRP. A hotline engineer told me that this is normal. Like I said, I can't remember what the DTC is that I had so long ago, but just beware. Quote Link to comment Share on other sites More sharing options...
cbriggs Posted February 18, 2010 Share Posted February 18, 2010 P0191 would've been your code. The vac line going into sensor causes engine vacuum referenced bias on the sensor, essentially tricks the pcm into lowering fuel pressure at high vacuum, (similar to a vacuum regulator on a returning system.)If you unhook vacuum hose with guage installed the pressures should match. Quote Link to comment Share on other sites More sharing options...
Mbl35 Posted February 19, 2010 Author Share Posted February 19, 2010 Well so far so good. If the mil came back on i problobly would have heard bout it by now, the person who drives this vehicle is particular. Thats true though, I never rely on the frp pid for a fuel pressure reading. Quote Link to comment Share on other sites More sharing options...
DamageINC Posted February 22, 2010 Share Posted February 22, 2010 The other guys are right though, the FRP sensor is a vacuum-referenced sensor and NOT an atmospheric pressure-referenced sensor, so the FRP pid WILL change if the vacuum line is removed from it. Dave Quote Link to comment Share on other sites More sharing options...
Mbl35 Posted March 8, 2010 Author Share Posted March 8, 2010 It's here today for a ps leak, i scanned it and Pass Quote Link to comment Share on other sites More sharing options...
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