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Next question OBD-II light

523 Views 40 Replies 7 Participants Last post by  Zona Kona, 
T
2
The engine light came on the other day. Could my removal of the resonator and a new K&N filter trigger this? If not what else?
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A
Go to autozone and ask for a code reader, then look in yer Haynes/Chitlins' manual (you DO have one of those, right?!?!) and just check the code, then go from there.
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T
2
Looks like I will be getting a code reader, and a Haynes/Chitlins manual.
Thanks
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A
Looks like I will be getting a code reader, and a Haynes/Chitlins manual.
Thanks
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Code reader's free! Haynes/Chitlin's is 15 bucks.


If you wanna go above and beyond, look for hardcopies of the Mechanical and Electrical/Vacuum books off of ebay. They cost a pretty penny, but a 4th grader could do the work with the instructions and illustrations they give in the factory manuals. I have a set for my GT, I wouldn't trade 'em for anything.
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Broke_Two_Foci
Looks like I will be getting a code reader, and a Haynes/Chitlins manual.
Thanks
Click to expand...
Code reader's free! Haynes/Chitlin's is 15 bucks.


If you wanna go above and beyond, look for hardcopies of the Mechanical and Electrical/Vacuum books off of ebay. They cost a pretty penny, but a 4th grader could do the work with the instructions and illustrations they give in the factory manuals. I have a set for my GT, I wouldn't trade 'em for anything.
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definatly the way to go if you can afford the factory manuals. I have used them for a 95 lightning and a 04 f250 and they have payed for them selves in the amount of aggervation they spare you. as soon as I can afford it I am getting a set for my 03 foci.
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T
2
Thanks for the advice.
My oldest will be a 4th grader soon, maybe I can have her do the work.
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Massive
Actually, I've got an SCT Xcal2 that will read your code...and the website to check the codes is:
Ford Diagnostic Trouble Codes

edit: when diablosport's site works
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Broke_Two_Foci
3
I wasent going to say that it was down
kinda funny though
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chewbacca
there is a whole listing of DTC's in the team tech secton of FJ with descriptions and possible causes.
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Massive
Awesome, I didn't know they had it there too...That's why I like that diablosport site, give possible causes also.
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F
Hey Condor, I would just wait and let Massive or Tparker help you out. They both have the means to get your code, and if it doesn't seem to be a big deal they can reset the car's computer. If it keeps coming on...then you might wanna get it checked out, but if the car is running ok...it's probably nothing more than what it is...an idiot light!
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Zona Kona
Massive or Tparker
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chewie and Ron have one too
.

the Dirt Brown Kona in Arizona
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chewbacca
that we do, call me if you can't get ahold of anyone else, 480-229-2195
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T
Just got back from Autozone. The error code is P0402, an EGR Valve. Any advice? A new valve is like $60.
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chewbacca
go out and check all of your vaccum hoses coming off the intake and the dpfe, make sure none are split or broken . does the car seem to be running fine, other than the fact it has a CEL iluminated?
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T
The car seems to be running fine, I might even suggest better than ever since the removal of the resonator and a K&N air filter.
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Broke_Two_Foci
also check your dpfe it measures the exhaust flow through the egr system. they are known to go bad. and that would tell the computer that something is wrong with the egr. it is the only way the computer knows that the egr is working. if it went bad it could just be that sensor and not the egr valve it self.
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T
also check your dpfe it measures the exhaust flow through the egr system. they are known to go bad. and that would tell the computer that something is wrong with the egr. it is the only way the computer knows that the egr is working. if it went bad it could just be that sensor and not the egr valve it self.
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How do I check the dpfe?
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A
You go to the dealer and see if it falls under the recall on DPFE sensors, if so, get them to replace it for free
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Broke_Two_Foci
you can also check on www.focushacks.com/index.php?modid=80 it is a good write up about the egr and dpfe system. but definatly check for a recall. p.m. tymeks he will be able to tell you if there is a recall by the vin of your car.
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