Jump to content


Help needed to solve puzzling P0102 error code

Hilux Sam

By Hilux Sam
in Hilux Club

 Share

Recommended Posts

Hilux Sam Member

Hilux Sam

Posted
Posted

Hi Everyone,

I'm hoping somebody might be able to help with what is becoming a difficult to solve P0102 error code.  The car is a manual Diesel 2013 SR5 (KUN26R with 1KD-FTV engine) with about 240k on the odometer. I've only had it a few months and recently had it serviced (not by Toyota), it seems to have been pretty well cared for.  Last week I went to start it after a few days of non usage and the engine light came on and after driving about 100m i noticed the VSC off light was also flashing.  It starts fine but has no power when trying to drive it.  I used an OBD2 scanner with the 'car scanner' app which gave me error code P0102 with C1201.  My first thought was rodent damage but cannot find any sign of chewed wires.

I cleaned the MAF sensor, checked for blockages to the air filter intake, replaced the air filter, checked voltage at the sensor connector, insulation on all wires to earth as well as between the wires, continuity (buzzed but didn't measure resistance) from ECU to the sensor, replaced the MAF sensor.  The replacement sensor is OEM bought from a Toyota dealer.   Error codes were cleared after each step but they return immediately.  I also tried disconnecting the battery to clear codes but that made no difference.  I have inspected the air hose on the engine side of the MAF sensor for leaks but it looks good.  It seems to me like the MAF P0102 code is a symptom not cause but don't know to what check next.  

I had a mechanic come and take a look and he said he thought it could be an ECU problem because with the engine running, when he disconnected the connector to the MAF, there was no change to the airflow reading (which he said was zero) and he expected that the ECU would set the Airflow to Max.  He also said it is an hard error being thrown as it appears as soon as the car is started even after having been cleared.  When I use my OCB2 reader to check the sensor value it says 2.6 which never changes, even with the engine off and only the ignition on.  

Can anyone confirm what value I should see for the MAF sensor with it disconnected?

Any ideas on what I should be doing next would be much appreciated.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing



  • Join The Club

    Join the Toyota Owners Club and be part of the Community. It's FREE!

  • Latest Postings

    1. 1

      2001 Toyota Camry wagon passenger side locks not working

      Had a similar issue with my 2003 Camry sedan. I'm think the mechanism might be bit stiff, so removing the door card and spraying the locking cable (the one that pushes the lock knob into the lock and unlock position on the interior door handle) with some Innox might work to loosen up the old grease and get it working again.
      Luke 03 Camry in Camry Club
    2. 4

      Auto door locking on new 2024 C-HR?

      Thanks for that Martin. Placed an order for a GR Sport on Friday. Supposedly due for delivery in about three weeks with a manufacturing date of December.
      KOBA_Guy in C-HR Club
    3. 0

      Has anyone found 200 Series Rear Screen Delete Cover in AUS

      Hi, just curious if anyone has had any success removing their Back of seat DVD screens and replacing with an Australian made cover.
      Darren WAVIC in Landcruiser
    4. 11

      Low Fuel Warning Light Flashing

      Hi Neil (bully109), I would love the photo of the unit that needs to be taken out if you could send it though, I have the same issues as everyone else and have had no luck getting it fixed. Thanks, Mark
      Jett2011 in Landcruiser
    5. 1

      2007 - floor mats

      Hi Ed, Hmm that's a tough one mate ..short of going to Toyota to get genuine and no I doubt they would laugh at you as it's a sale and money is tight right now. I am not sure if you are on Facebook or not but I have seen an advert on there for what looks like superb floor mat sets that do seem excellent quality and a wide range but like most things now they are not cheapish. My best advice is source some good quality ones and search online for someone who offers embroidery as some do tradie shirts and logos on clothing it may be worth a phone call to those sort of places as I know a local one to me does all sorts of work on many things related to embroidery or an alternative choice is the online sites like Temu... EBay etc Let us know how you get on mate good luck. KAA
      KAA in General Toyota & Other Car Discussions
    6. 1

      2001 Toyota Camry wagon passenger side locks not working

      Gday, I've got a 2001 Camry wagon which has been having locking issues for a while now, just started occurring out of the blue. There is no fob so we manually unlock and lock from the driver side door, however the rear and front passenger doors consistently have issues. Either when we unlock one or both doors don't unlock and must be unlocked from inside the car, or when we lock it one or both don't lock and the car beeps. To fix that, we open the door, lock it from the inside, the lift up the handle and close the door before releasing the handle. That fixes the locking issue. When testing the locks from inside the car, I can see that they partially lock and unlock, so I'm wondering if they need to be replaced entirely or if there's some other way to fix it. Cheers
      dexter898 in Camry Club
    7. 0

      2002 Hilux Engine Replacement

      I have a 2002 Hilux that is meant to have a 5le engine but i think it was replaced with a new engine with a turbo before i bought it. Its a different engine compared to what is in the manual - eg the alternator is at the bottom not the top as per the manual. The engine is seized - tried roll starting downhill and wheels just locked up. I cant find what the engine is. Any ideas on where I would find it? Also 5LE engines are hard to find - any ideas on what else i could put in? Does a 1KZ fit?
      Jack the Camel Killer in Hilux Club
    8. 3

      Engine conversion

      I have a 2002 Hilux that is meant to have a 5le engine but i think it was upgraded to a turbo version before i bought it. Its a different engine compared to what is in the manual - eg the alternator is at the bottom not the top as per the manual. The engine is seized - tried roll starting downhill and wheels just locked up. I cant find what the engine is. Any ideas on where I would find it? Also 5LE engines are hard to find - any ideas on what else i could put in?
      Jack the Camel Killer in Hilux Club
    9. 0

      Po299

      Low boost it happens highway 112kmph po299 low boost limp mode gear won't pass 4th even on sports mode when I reset complete normal my engine was rebuilt done 20000km new turbo injector check and good working order I use penrite egr and cat cleaner there was a improvement I didn't get a chance to do over 100 kmph is it fuel air ratio related or valve o2 cat egr map sensor or map filter related? Any thoughts ?
      Ameen in Other Toyota Models
    10. 0

      Boot Dimensions?

      Hi All, Greetings from the UK. I wondered if any kind folk could help me out. I am trying to get hold of some measurements for the boot/trunk of later model Fortuners. Does any know the height, min width (between the stowed 3rd seats) and the min depth from the 2nd row seat backs to the tailgate? Trying to work out if I can get all my luggage on board before I travel. Hope someone can help. Cheers KP
      Corik in Fortuner Club
×
×
  • Create New...

Forums

News

Membership