P0190 - Code on XCAL 3

[dohc324ci]

I have a noticeable bog/hesitation off the line. I've tried running at various speeds to duplicate the bog 35-45-55 etc...only happens off of the line. Any help would be appreciated.

Should I replace?

SCT Manual DTC:
P0190 Fuel Rail Pressure Sensor Circuit Malfunction

[LANDY]

thats the same code my car is throwing, i feel no bogs but it came on a WOT, then i havent done it since.next week im getting it fixed and dyno tunning the car.
they say it could be several things.
bad sensor
too much press flowing thru the lines couses the sensor to go off
and lean conditions.
but i would not recomend getting on it till you get it fixed.

[Pat]

Didn't we just finish discussing this on a previous thread by blackbeauty2, Tuning Forum, Check Engine Light?

Possible fixes = revised tune file, wafer mod to FRPS, check of actual fuel pressure with guages, smell test of sensor.

dohc324ci - Your signature lists a lot of mods to the motor (new engine?), is this code something new, or has it been around since the engine mods?

Other folks that have experienced this P0190 anamoly didn't squawk about a bogging issue. You may have an actual problem not just a tolerance parameter exceeded by hardware change.

I would suggesty having your fuel delivery system pressure checked with guages.

Regards,

[dohc324ci]

New since the new engine back in late October. I did see those threads and looks like modifying the tune for the mods; replace FRPS..

Good info, will have Fuel pressure checked as well.

[ImpalaSlayer]

New since the new engine back in late October. I did see those threads and looks like modifying the tune for the mods; replace FRPS..

Good info, will have Fuel pressure checked as well.

frps is ezpz to change.

[dohc324ci]

frps is ezpz to change.

dont want to change if i dont have too...$95 sounds like I do based on Zack's post in a previous thread.

[FordNut]

Probably in the tune. Reset the DTC, see if you can tell exactly what causes it to come on. I've never blown one (yet).

[juno]

If it fails electronically or goes whacky you may get that signal. You may have an electronic failure or tune problem.
If it fails physically (diaphragm ruptures, fuel sent directly to the intake manifold) your car will barely run at all.
Even though it does not sound like a mechanical failure it might be a good idea to get an orifice from Kenne Bell if you have to replace the sensor. They are close to you and it is good insurance if you make any fuel mods in the future.

[dohc324ci]

^^Sounds like its my tune; Ive reset the DTC in the Xcal and popped up again...It took a while for it to come up. I cleared then ran the car idle then checked for the code nothing appeared so I thought I was all good. Then while data logging I found the code popped up again. I am going to send the car in to another tuner and have my tune re done. As I feel my current tune is a hack job...LOL

Thanks for the input guys!

[dohc324ci]

Well after speaking to another tuner and Zack, I did the fuel pressure sensor swap and drove for about 15 min around town checked for the DTC code on the xcal and the swap seems to have cleared the code. Still hesitates at part/wot though doesnt seem as bad (bog). Waiting for cops hopefully better throttle response then back on the dyno she goes. Then shortys then a new tune.

[merc]

I replace my frps 2 to 3 times a year. Have not figured out why it fails, but looking to change fuel system to return style.

[FordNut]

Well after speaking to another tuner and Zack, I did the fuel pressure sensor swap and drove for about 15 min around town checked for the DTC code on the xcal and the swap seems to have cleared the code. Still hesitates at part/wot though doesnt seem as bad (bog). Waiting for cops hopefully better throttle response then back on the dyno she goes. Then shortys then a new tune.


I replace my frps 2 to 3 times a year. Have not figured out why it fails, but looked to change fuel system to return style.

Very strange. I have never blown one. I think it's in the tune. Combination of fuel pump PID values and fuel tables. But I don't know how to fix it for y'all.

[FordNut]

Oh, I did get a P0190 error a week or 2 ago, but it was because I left the electrical connector to the FRPS unplugged when I was working on the new CAI setup.

[juno]

I replace my frps 2 to 3 times a year. Have not figured out why it fails, but looking to change fuel system to return style.
Does it fail electrically or physically(pouring fuel into the intake)?

[merc]

Does it fail electrically or physically(pouring fuel into the intake)?

The last time it happened it pushed fuel back through the hose and flooded the car. It wouldn't start till Chris Vining cleared all the lines. If I remember correctly I had fuel in the boost gauge also.
Failure also occurred in the staging lanes when a check engine light was displayed. Also had problems with the car stalling at idle. That's why I keep a stock of frps in my tool bag. It's a quick fix but I hate having to spend the money 2 - 3 times a year.

[juno]

The last time it happened it pushed fuel back through the hose and flooded the car. It wouldn't start till Chris Vining cleared all the lines. If I remember correctly I had fuel in the boost gauge also.
Failure also occurred in the staging lanes when a check engine light was displayed. Also had problems with the car stalling at idle. That's why I keep a stock of frps in my tool bag. It's a quick fix but I hate having to spend the money 2 - 3 times a year.

I had that problem when the tuner removed the check valve from my fuel line and it is typical on Cobras that have that done. Call Kenne Bell and get one of their orifices that goes between the sensor and the fuel manifold. Stops the pulses that break the diaphragm preventing the direct injection of copious amounts of fuel to the intake manifold.
I have not had the problem since, (over a year) but I keep a spare sensor and allen wrench in my center console also. :)
There may be another source for the orifii, but I am not aware of it.

[dohc324ci]

^^Good info; it still may be my tune but the error code but hasnt re-appeared yet. I am still going to have another tuner write a new tune but after the COP and Header install.

[merc]

I had that problem when the tuner removed the check valve from my fuel line and it is typical on Cobras that have that done. Call Kenne Bell and get one of their orifices that goes between the sensor and the fuel manifold. Stops the pulses that break the diaphragm preventing the direct injection of copious amounts of fuel to the intake manifold.
I have not had the problem since, (over a year) but I keep a spare sensor and allen wrench in my center console also. :)
There may be another source for the orifii, but I am not aware of it.

Brian White got me the Kenne Bell part that you are talking about last year. I will check with my tuner on other tuning issues.

[dohc324ci]

So far so good no P0190 code yet over 80 miles freeway and around town. Still has a delay when WOT from a standing start but doesnt idle low or die like it did from time to time. No doubt its the tune causing my issue along with some COPs to be sure...

[Midnight]

I have a stock car (mechanically) and a Reinhart tune, and just fooling around, i plugged in the XCAL to check the DTC and i get the p0190 code...... No check engine light, just this code.


Does this mean i have a bad fuel pump? or maybe a bad sensor?

Ive noticed poor acceleration recently, i thought i had bad coils (and still trying to buy some from "musclemerc")


i will check the MAFS, and see what happens.

i only saw it once, so i just reset it, and ill see if it pops up again.

but, in any light, maybe someone can give me feedback on this issue.

I have never changed the fuel-pump, and i just changed the fuel filter within the last 3K miles.