2004 - 2008 F-150

P2106 code?

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  #16  
Old 07-08-2008, 06:35 PM
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Thanks Josiah. I cleaned the gunk out of the trottle body, the top of the manifold, maf, and poured a can of seafoam in the gas tank. (I won't temp the devil with pouring seafoam into intake) So far it seems to be driving well and sounding a bit better. I really need to put some heavy local miles on it before I can be sure it's OK. I'm going to go back to level 3 on the edge as well. Then I'll hang on to the new throttle body and change it out if the code starts becoming a PITA again and get the flash done if needed. If I had to pay microsoft for a software update I'd be pissed. ah well it's been a good truck now if i'd quite messing it up haha.
 

Last edited by Impact9; 07-08-2008 at 06:38 PM. Reason: sig overkill
  #17  
Old 07-08-2008, 07:40 PM
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P2106 is an informational code and is usually set by some other fault. You shouldn't have that code alone without any other DTCs.
 
  #18  
Old 07-08-2008, 07:49 PM
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Quinton: I have that code by itself constantly.

That's what I said in another thread... Im getting a code that tells me somthing is wrong.. "Stupid truck! I already know somthing is wrong with you!"

I may try what Josiah has said, thogh it will be a pain in the *** for me. I'll have to get the new PCM code and and get a new tune made for my truck to be compatable with the supercharger.
 
  #19  
Old 07-08-2008, 09:26 PM
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Yes. Sorry for not clarifying, the old TPS sensor was bad. Replacing it with the new one is what solved the problem, but you will NEED a PCM reflash most of the time. I have a 2004, so it's hard to say what years the new TPS is compatible with.
 
  #20  
Old 07-09-2008, 07:56 AM
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Sometimes tuners/programmers will only show the informational DTCs, not any of the others. Get a second opinion from a scan tool if you haven't already.
 
  #21  
Old 07-09-2008, 03:33 PM
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any ideal if the scan tool autozone or oreily's uses will pick up these rouge codes?
 
  #22  
Old 07-10-2008, 07:22 PM
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now i have the same problem.. i was drivin today and it started actin sluggish then it just died and so i went to auto zone and got a diagnostic readin with the same code - p2106.. i ended up makin it back home but if i crank the truck now it dies shortly after, unless i reset the edge and it runs; but runs like ****.. i guess i'm gonna have to go to the dealer and get a new TPS... is there anyway i can reflash the PCM myself?
 

Last edited by fx4jake31; 07-14-2008 at 01:13 PM.
  #23  
Old 07-10-2008, 08:21 PM
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Crap I forgot to post the part number yesterday for the throttle body...

PN 8L3Z-9E926-B

I ended up paying :

Items Total: $147.92
Shipping: $29.58
Handling Fee: $0.00
Order Total: $177.50

that was shipping overnight so not bad from fordparts.com (Titus Will Ford). It did come with everything attached so if you get quoted close to that for the TPS you might as well get a new TB.

Jake far as I know you can't flash the PCM since you don't have the updated program needed to be loaded into the PCM. You might try cleaning the MAF and the TB so far it's been running fine since I did. Seafoam may have helped but hard to say since I did this all at the same time. I can't say for sure until sunday when I start my return trip if this fixed the problem 100%.
 
  #24  
Old 07-10-2008, 09:06 PM
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You can try cleaning the MAF, but I've already done that and it didn't help.

I also tried getting a ner TPS.. and that didn't help.

In my case, the truck ran great after the last major change I did (supercharger). That's been over a year ago and nothing has changed except the way my truck runs.

Having said that, I wanna rule out that the PCM needs updating.. I want to.

I want to believe it's somthing mechanical.

yeah, I paid about $70-$80 for the TPS alone... so for another $50, you can get a whole new throtte body too.

I ordered one from the local Ford Stealership, but I'm not gonna pick it up... it's double the price of the one listed above. :@
 
  #25  
Old 07-10-2008, 09:34 PM
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tried cleaning all the sensors took off the throttle body everything was clean as a whistle (suprised since i have the k&n cai).. but now it won't stay runnin unless i feather the gas guess i gotta get a tow truck tomorrow.. also when it dies and i push the gas i can hear this electrical soundin noise kinda like sparks and bad switch sound
 
  #26  
Old 07-13-2008, 10:15 PM
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Well I drove from SE Missouri to Springfield Mo and it acted up about 30 miles east of Springfield. I pulled into a road side park and changed the throttle body out and cleaned the MAF again. It worked till I got into Springfield so we stopped at bass pro shops and wasted 2 hours came back out and it ran fine for about 60 miles. I stopped and did the battery drain trick and it worked the last 160 miles of the trip just fine.

So in 10 hours it coded P2106 (alone) 3 times. I'm going to try to get the code again and limp it to the dealer to look for any hidden codes. I may just order a new MAF or see if my buddy can reprogram in the PCM with any updates.

So far the P2106 solo code remains a mystery.
 

Last edited by Impact9; 07-14-2008 at 08:52 AM.
  #27  
Old 07-14-2008, 12:18 AM
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I'll go so far as to promise you that you don't have P2106 just by itself, at least the PCM doesn't. All P2106 means is that the PCM detected a fault with the electronic throttle control and went into fail safe mode. It doesn't tell you specifically what system or component went haywire, just that something was wrong, the PCM didn't know what to do so it went to a known good operating parameter, in this case fail safe mode.

A lot of tuners, and even some non-OEM scan tools, won't read all the codes stored by the PCM. You're checking for codes and see P2106, but I'll bet you dollars to donuts that there's another code stored that your tuners can't detect.
 
  #28  
Old 07-14-2008, 08:52 AM
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Quintin, not sure if you caught my question to your previous post. Do you know if the autozone scan tool will bring up those codes?
 
  #29  
Old 07-14-2008, 01:12 PM
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well i guess it wasn't the TPS because i just called and the guy said they ran through everything and they are waiting on a fuel pump... that is weird i got that code because it did spit it out on the edge and on the autozone diagnostic machine....

maybe ford's wrong about the fuel pump, guess i'll find out tomorrow
 
  #30  
Old 07-14-2008, 05:54 PM
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ok so i called the guy again, and now he's tellin me it's my aftermarket parts on the truck? i have an edge but i returned it to stock and took it out and before it went to the dealer and i have k&N cai could these things really be the problem or is he just saying that because he don't know what the hell is wrong with it?

i hope a tech can chime in
 


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