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4.0ranger
 Post subject: CEL p0453 Failed Emissions -Help! Fuel Cell
New postPosted: Sat Mar 25, 2006 5:48 pm 
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Location: Acworth, GA
 
I need help, my truck is throwing the CEL. The code is
P0453 Evaporative Emission Control System Pressure Sensor High Input, I have the vent canister hooked up. The stock gas cap, and stock fuel pump o-ring. It is in a fuel cell now. I have a small connector, that comes off the main wire harness on the driver side frame by the rear of the cab. anyone know where this goes? The connector is square and gray. it is a 3-pin. the wire colors are purple?, red, and brown/white? i am thinking this is the problem. i need to know what it hooks up to. i have the connector that hooks up the the canister soleniod. any ideas that could be causing this? i talked to Ford, they wont work on my truck cause the fuel cell. sucks...
they said it could be a connector not plugged, the fuel cell itself, a purge valve, or the fuel canister vapor soleniod.
Please help, emissions due yesterday!
-oh when i moved the fuel canister, i had to cut the wires on the connector, would that make it bad? i figure when the code says "Pressure Sensor High Input" that could mean too much voltage??? i dunno :?:
Thanks
Bryan


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Baha
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New postPosted: Sat Mar 25, 2006 6:06 pm 
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duuuuuuuuuude your on here!


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bodydropped85
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New postPosted: Sat Mar 25, 2006 6:33 pm 
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its possible that one of the wires is causing to much ohmage. try soldering the connecters and reset the PCM and drive it for a few days.
85 ranger-bagged,bodydropped,gathering rust for now
02-fx4 4.0 man. trans & t-case POS
87 jeep comanche-the FIRST b/d comanche, 16 in centerline coronas, s10 frame,2x3 back half,RHD:D
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bodydropped85
 Post subject:
New postPosted: Sat Mar 25, 2006 6:42 pm 
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also check for hi FTP(fuel tank pressure) voltage on the sensor. key on, engine off should be between 2.37 and 2.97 volts. its possilbe its intermintant or the pcm could need a reflash from ford. do you have a chip on there? the fuel tank pressure sensor is supposed to be in top of the tank.
85 ranger-bagged,bodydropped,gathering rust for now
02-fx4 4.0 man. trans & t-case POS
87 jeep comanche-the FIRST b/d comanche, 16 in centerline coronas, s10 frame,2x3 back half,RHD:D
Image


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4.0ranger
 Post subject:
New postPosted: Sat Mar 25, 2006 7:32 pm 
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Location: Acworth, GA
 
How do i check the FTP? there is no sensor on the stock gas tank...so we didnt put one on the fuel cell. (Is that the gray 90 deg connector on the back of the tank closer to the rear axle?) Where does that connector go to? I thought that went into the filler neck for overflow purposes. I dont have a chip. i have been resetting the PCM by disconnecting the neg batt. for 10 min. Will that work? One the 1st start the CEL is off. But as soon as i start it 2nd time it comes on. I drive the truck 1st time. 2nd start CEL came on.
reset the PCM again started truck for 1 min. started 2nd time CEL on again. I think it doesnt matter if i drive the truck or not, its just the 2nd start that turns it on. Can I dis neg. batt. start truck and drive to emissions. hopefully it would work. obvisiouly i wouldnt have any drive cycles though. so i dont know.
James- since i had to cut the wires and shorten them b/c fuel cell is close to cab, that would cause to much ohmage too huh?
what does a reflash do? thanks guys
Sup baha! yea i know its been a while. been busy working on the truck but this emission thing is killin me...


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4.0ranger
 Post subject:
New postPosted: Sat Mar 25, 2006 7:33 pm 
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maybe that 3-pin connector was used to go to the FTP sensor? do you maybe know. if it does i guess i need to talk to Ford and get a new one.


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bodydropped85
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New postPosted: Sun Mar 26, 2006 12:23 am 
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yea its possible that it is, were is hte connector again?
85 ranger-bagged,bodydropped,gathering rust for now
02-fx4 4.0 man. trans & t-case POS
87 jeep comanche-the FIRST b/d comanche, 16 in centerline coronas, s10 frame,2x3 back half,RHD:D
Image


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4.0ranger
 Post subject:
New postPosted: Sun Mar 26, 2006 12:55 am 
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Location: Acworth, GA
 
the connector is right off the main wiring harness that runs down the driver side frame. (the wire harness that has the taillights, and ABS sensor) it branches of through the wire loom right under the back side of the cab. it runs right by where i have my rear driverside airbag, and goes back about 1 foot. right where the gas tank would be. i dunno what it goes to, but whatever it goes to i dont have anymore.
thanks for all your guys help.


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bodydropped85
 Post subject:
New postPosted: Sun Mar 26, 2006 1:40 am 
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yea thats prob what it is.
85 ranger-bagged,bodydropped,gathering rust for now
02-fx4 4.0 man. trans & t-case POS
87 jeep comanche-the FIRST b/d comanche, 16 in centerline coronas, s10 frame,2x3 back half,RHD:D
Image


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4.0ranger
 Post subject:
New postPosted: Sun Mar 26, 2006 5:28 pm 
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Joined: Sat May 21, 2005 6:55 pm
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Location: Acworth, GA
 
wish me luck, im going to get it tested again. still CEL but only on 2nd start. so im not going to turn it off when u get there .hopefully it will pass then.


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bodydropped85
 Post subject:
New postPosted: Sun Mar 26, 2006 7:43 pm 
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well ur gona fail again, cuz tehy do the key on engine off test first thing to make sure the bulb is workin.
85 ranger-bagged,bodydropped,gathering rust for now
02-fx4 4.0 man. trans & t-case POS
87 jeep comanche-the FIRST b/d comanche, 16 in centerline coronas, s10 frame,2x3 back half,RHD:D
Image


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Baha
 Post subject:
New postPosted: Mon Mar 27, 2006 5:30 pm 
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hope to see you in gwinnett man, I guess I got lucky I just set up my fuel cell like my stock tank and I passed, did you pass this time?

do you still have your stock tank? I don't know if I could find the problem but I could take a look at it this week for you


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4.0ranger
 Post subject:
New postPosted: Mon Mar 27, 2006 10:53 pm 
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well i found out from Ford today that i dont have a FTP sensor. I found out that i am missing the Vapor Line going back to my charcoal canister in the engine bay. $270!!! shiiit. but i also am missing the connector. i hope that the vapor line has something on it to connect to. if not then ill prob have another code when i get this the badger fixed! no i failed again, but it didnt count as my freebie, he cancelled it b4 it completed. the guy was cool, he was trying to get me to pass but there isnt any way around OBDII.


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Baha
 Post subject:
New postPosted: Tue Mar 28, 2006 12:08 am 
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that's good news! better then hunting for the problem haha


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