Engine Code P0234 Engine Overboost

Discussion in '2017 Ford Raptor Forum' started by Mis Ruby, Nov 7, 2017.

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  1. Mis Ruby

    Mis Ruby New Member

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    Has anyone else pull up an engine light with P0234 code? It’s an Engine Overboost Code.

    Engine light came on when I was giving it mid throttle merging onto the freeway. Shifted up and down kinda weird, engine light came on and then lost power. Had to buy a new PCM and have it programmed because of the Recalibrated PCM. I would think if it was going to throw an Overboost Code I would have to be full throttle.

    Truck still at Dealership but haven’t heard from they since I took the keys new pcm to them. Don’t want to push them for answers with this being a gray area for warranty.

    Mods; Whipple Charger Recalibrated PCM, S&D Cold Air intake, Spd turbo spacers and Borla SType cat back.
     
  2. JAMES A DAVIS

    JAMES A DAVIS Member

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    Miz..........

    What kind of top speeds are you getting with those mods?

    JJ
     
  3. Mis Ruby

    Mis Ruby New Member

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    I did top it out once and hit 136. Maybe a couple more mph left. Ran out of room but still pulling a little and had boost and rpm left in 7th.
     
  4. JAMES A DAVIS

    JAMES A DAVIS Member

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    Nice...........

    I've had mine at 135 mph now but ran out of nerve thinking about those four BFG tires.

    My standard long range cruise speed is 110 mph and I feel safe with it.

    JJ
     
  5. Mis Ruby

    Mis Ruby New Member

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    I agree completely! I won’t do it again. I didn’t realize the top speed limiter with the Whipple Charger PCM was gone and once I passed 107 I wanted to see what it would do.


    Don’t think those tires would hold up to that speed on a regular bases. That’s a lots of rubber on the treads!
     
  6. JAMES A DAVIS

    JAMES A DAVIS Member

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    Miz.............

    I read on the BFG website that the rated "top" speed for those tires is 80 mph., so I've always got that in mind when over 100 mph. Two weeks ago I did a turn around in a sandy field and heard a pop then the tire pressure warning app came up on the screen. Hopped out to see my right front tire flat with a five inch long flap of rubber cut from the sidewall. Followed my tracks to find a fucking wine bottle that I had run over and crushed! So much for a three hundred and twenty dollar, tire not to mention two hours of work messing with the beadlock. So much for the "enhanced side wall protection" on those tires. I've NEVER had a tire failure due to broken glass in my life.

    Just wait till you try to jack up your truck with the factory scissor jack! That was a good hours worth of work in the middle of the night. Then try packing the jack and rods back up and stowed as it was from the factory. Next day I bought two hydraulic bottle jacks, a High Lift sand pad and two oak 4x4's.

    JJ
     
  7. Mis Ruby

    Mis Ruby New Member

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    O’man that sucks! Idiots that just throw crap like that out should be shot.

    I had to plug one of my tires once but I have a floor jack. It was a bitch getting the tire back on! Trying to lift the heavy ass tire and line up the bolt holes was a challenge. I’ve never had that much trouble before. Going to tire shop next time.
     
  8. rock1966

    rock1966 Member Military

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    Just happened to me today. I️ have an appt on the 22nd truck would not shift pass 3rd gear and a yellow box with a wrench showed up and said see owner manual.
     
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  9. Mis Ruby

    Mis Ruby New Member

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    That’s exactly what happened on mine.

    What Performance parts do you have on it?

    Good news is it can be corrected.
     
  10. rock1966

    rock1966 Member Military

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    Nothing motor stock
     
  11. Mis Ruby

    Mis Ruby New Member

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    I don’t think my issue was caused by Performance Mods because I wasn’t anywhere near full throttle when all the lights starting coming on but Ford would not touch my truck with the Recalibrated PCM. I purchased a new one and had them program and install it. It did clear the code and my truck runs fine now.

    I’m curious to see what they say about your truck with it being stock. I think it’s a sensor or turbo waste gate sticking because the turbo boost would have to be over the factory 18psi to throw the code and I wasn’t anywhere near that when it went off. Keep me posted please.


     
  12. rock1966

    rock1966 Member Military

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    Got the machine back today after 4 days waiting for the ford hotline to get back to them. They said turbo solenoid. Attached the paper work
     

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  13. metronyc

    metronyc Member

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    the issue might be turbo wastegate valve, those Whipple stage 1 upgrades don't worth the hassle of losing the warranty. I own both Raptors Gen1 and Gen 2, Gen 1 supercharged and heavily modified and Gen 2 stock. the word is the new Gen 2 PCM's can remember every change or plug-in of the new hardware and can void your warranty.
     
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  14. Mis Ruby

    Mis Ruby New Member

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    Thank you for your input. I agree it’s probally the waiste gate or a sensor. I wasn’t anywhere near full throttle when mine went off.

    I bought a new PCM and had ford program it and Whipple was kind enough to reflashed the one that reclabrated and clear the code for no charge. Once my warranty expires I’ll buy an aftermarket blow off valve and reinstall the Whipple PCM. I really enjoyed the power and drivability with the Whiplle Recalibration PCM and don’t think it’s the Whipple performance PCM that caused the issue.
     
  15. rock1966

    rock1966 Member Military

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    I agree because my engine is stock
     
  16. Rapdav18

    Rapdav18 New Member

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    Here I go! My first appointment with Ford dealership Mechanic.Tomorrow morning at 7:45 he wants to ride along and experience my P0234 code engine overboosting. Tick Tick tick. Then no turbos. What the F^%K. I pulled up a wrench on the dash too. It only has 5340 miles please don't become a Kraptor. Stay tuned for my dealership experience. Its Bone ass stock. No mods at all thank god as they will look for any reason to say I caused it. I am waiting there in the deaslership tomorrow. I want a full diagnostic test.
     
    Last edited: Dec 7, 2017 at 12:55 AM
  17. Rapdav18

    Rapdav18 New Member

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    My diagnostic report read a code P0234 was triggered but they cant determine why. They said to keep driving and if it happens again bring it back in. Nothing is wrong with the turbos. Maybe it was me driving it like my old V8.
     
  18. rock1966

    rock1966 Member Military

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    mine was a quick fix runs like new
     
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  19. rock1966

    rock1966 Member Military

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    To get the code back sport mode floor it and it will reappear
     
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  20. Rapdav18

    Rapdav18 New Member

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    Rock1966 speaks the truth! That's exactly right! That's what I did and that's what happened. Its seems like its a sportmode issue only. Dosen't happen in regular mode. What can we do ford? Reflash my sport mode please.
     
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