before the swap the Y7 was running fine and no DTC.
just after my swap I'm getting the check engine light on.
after retrieving the codes i get P0450 and P0453 indicating there is high voltage problem in the fuel tank pressure sensor.

 

are they connected? cut or damaged?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by -JSpecEk*9- &raquo;</TD></TR><TR><TD CLASS="quote">are they connected? cut or damaged?</TD></TR></TABLE>

still connected not damaged.
it worked well before the swap.
now after the swap i get the 450 and 453 code.

 

possible evap canister shut valve problem. check that over as well

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by postman &raquo;</TD></TR><TR><TD CLASS="quote">possible evap canister shut valve problem. check that over as well</TD></TR></TABLE>
i changed the evap purge control solenoidvalve from my old Y7 that was working fine already.

still problem exists

 

shut valve is diff from purge valve

 

okay i tried this quick fix and it seems to work now.

i turned on the ignition and leave it on for 10 seconds before cranking and no P0450 and P0453 codes.

Just wondering why the CEL comes on after the Y8 swap. I never had a problem with the FTP with the Y7 motor.
Is the FTP sensor faulty?

 

I am getting the same code, I know your from Canada but the US Ex model (Y8) came with a sensor in the fuel tank, my Cx isn't wired and doesn't have this sensor and that's why I am also throwing a code. the P2P ECU is looking for this sensor which a lot of non Ex models don't come with. There is supposedly a potentiometer trick that fixes this which I haven't tried yet, info posted on ff-squad.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eastbobdam &raquo;</TD></TR><TR><TD CLASS="quote">I am getting the same code, I know your from Canada but the US Ex model (Y8) came with a sensor in the fuel tank, my Cx isn't wired and doesn't have this sensor and that's why I am also throwing a code. the P2P ECU is looking for this sensor which a lot of non Ex models don't come with. There is supposedly a potentiometer trick that fixes this which I haven't tried yet, info posted on ff-squad. </TD></TR></TABLE>

would this cause my motor to erratical idle and stall problems?

 

Honestly, I am not sure, what I did was go to Autozone had them scan my codes and print out the causes and look into it from there. When I did the mini me, I had idling issues also, I replaced the IACV and this helped with that code I was throwing. Then my idle was shitty and I checked my vaccuum lines and capped off one of them on my skunk2 IM, this helped a little. I converted to an OBD1 ECU (P28) and the car idled like ****, I tee'd off the block skunk2 IM port and this was still shitty. I went back to the P2P OBD2 and it idled much better/normal.

I thought you can just put the p28 in and be all set, I guess not. I still have issues with (453) on the P2P, but need to try the potentiometer trick.

Check your vaccum lines because that would be one reason for shitty idle.

 

i'm using the P2P as well and boy the idle is at 2K sometimes and stalling at stops.