Yep. Recently had trouble starting, it would crank for a few seconds (longer than normal) before turning over. I just replaced my battery, thankfully it was not the starter.
Crank, No Start (1 Viewer)
- Thread starter YellowJacket
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There is a TSB (Technical Service Bulletin) to recalibrate the computer for this issue. It has to do with the ECU improperly calculating the ethanol density in the gas.
IIRC the TSB says to perform the recalibrate and replace the fuel pump. I have never had to replace the fuel pump. If the dealer is unwilling to do the repair without replacing the fuel pump, find a Toyota Specialist that will
IIRC the TSB says to perform the recalibrate and replace the fuel pump. I have never had to replace the fuel pump. If the dealer is unwilling to do the repair without replacing the fuel pump, find a Toyota Specialist that will
bloc
SILVER Star
I believe the TSB covers certain years and that doesn’t include 2013. Unless you have the relevant TSB number so we can do some research..
YellowJacket
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- Thread starter
- #24
I’m not sure this applies unfortunately because there’s simply zero power coming out of the fuel pump computer.
bloc
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I personally wonder whether pumps failing and drawing more amps than they should is what’s cooking the pump controller. Teckis had abnormal wear inside his pump when it failed.
molanginaeda
SILVER Star
Maybe I not a smart engineer, why do Toyota put an electronic device mount on the vehicle frame? It’s not like it’s water proof area. I can see water sip in through the connector (even the connector is water tight) and fry the circuit board with some age.
The ECU is cheap. Troubleshooting it was like guessing (no engine light, no code). I was able to isolate the problem before digging into the fuel pump.
The ECU is cheap. Troubleshooting it was like guessing (no engine light, no code). I was able to isolate the problem before digging into the fuel pump.
kcjaz
SILVER Star
Found this:
Anyone Have the TSB on the Fuel Pump Recall?
Looking for the repair instructions. I want to know what is involved and to what degree they have to violate my baby! TIA
forum.ih8mud.com
says it is engine stall at higher speeds, not starting. Maybe there is another one?
My new to me 2015 says "no open recalls" when I run the VIN but the Toyota and Carfax maintenance records do show it was ever done. It likely also depends on other details of manufacture that vary within a MY.
In the link above is a link to the tech instructions:
I need to make sure my new 2015 doesn't need this before I move my LRA over and cut the filler neck. A dealer would take one look at that and not want to touch it.
The NHTSA is a safety organization so they're only concerned with failure modes that lead to an imminent unmitigated hazard. Things like stalling on the freeway, loss of control, safety systems like airbags/belts, etc. That's not to say these root failures can't manifest in other ways. It's usually assumed that a parked vehicle is in a safe state so starting, while a failure, isn't a safety critical failure.
kcjaz
SILVER Star
Understood. Just wondering if there is more than one TSB.
YellowJacket
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- #30
We got the computer replaced and it fired right up, but there’s an issue when in park and these codes are new.
PO171 System too lean (Bank 1)
PO174 System too lean (Bank 2)
PO101 Mass Air Flow or Volume Air Flow Sensor - Circuit Range/Performance
Also, still have the TRAC OFF, flashing 4LO, and of course the CEL. I can’t help but feel like something i was left unplugged. It’s got to be related somehow right?
PO171 System too lean (Bank 1)
PO174 System too lean (Bank 2)
PO101 Mass Air Flow or Volume Air Flow Sensor - Circuit Range/Performance
Also, still have the TRAC OFF, flashing 4LO, and of course the CEL. I can’t help but feel like something i was left unplugged. It’s got to be related somehow right?
bloc
SILVER Star
Check your MAF sensor plug.
These also come on in other cruisers (gx470x lX 470, gx 460) when the gas cap is not tight or if the cap gasket is too stiff/brittle and not sealing.
YellowJacket
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- Thread starter
- #33
I checked the MAF and the gas cap. Come to find out, it was the PVC hose. It was disconnect at the bottom where it’s impossible to see. 
Mine is cranking with no start. How did you verify no voltage and how easy is it to get access to this part?
Thanks
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