P1235.... What should I look for?
 

So I went to drive to work (70F, humid if that matters) and the CEL came right on. Limp mode.

I checked the code and it was p1235, high pressure fuel pump circuit. Is there anything I can do or check?

HPFP has pressure monitoring, from memory aboit 2-4 mpa at idle amd up to 19 at high rpm


Check electrical connector on hpfp maybe remove and clean connector

I've been waiting for morning in Australia and you to wake up @steve99 LOL. TY

Still no dice, tilt tray (we call it a flatbed) is on the way. Should be (hopefully!) a warranty item. It's listed as a powertrain part.

yeah sound like the hpfp may have problem or failed ot the intergrated pressure sensor failed. wont be a cheap fix, so hopefully covered under warantee


Its also possible the low pressure pump in tank has failed/low pressure or blocked filter as theirs no monitoring or pressure sensor on it. As it feeds fuel to hpfp

Toyota of Tampa Bay replaced the EDU (HPFP control module) and checked the MAP. These were the cheap fixes. They sent me off and said if I had more issues bring it back. I also mentioned in passing about the crickets. The service advisor said if the chirp continues, bring it back, there's a TSB. As a side note, they ran my battery down and replaced it for free. Good on you, TOTB!

Next week, fuel pressure doesn't look right (torque pro) and there's a pending code of p219A. Car isn't running right even though fuel trims and AFR look good. I know how this car should drive. I take it back to them. Also, crickets are still there (as they had been from day 1).

This is where I go off. They tell me I have to undo my mods.... As in the fuse tap I have on my radio circuit. I shit you not. They also try to tell me that can cause the issue, they also point to my oil pressure sending unit and AFR gauge. I was yelling at the SA. I'M NOT THAT DUMB ASSHOLE. After much wrangling they finally replace the HPFP ($2004, but 0 cost to me) . That'$ why they didn't want to cover it. But there's a TSB, so WTF?

The car is back, hopefully there's no more issues.

Today I did see a pending code for p219a, but after I stopped for 30 mins and drove again, it cleared and never tripped a CEL. Should I be concerned?

$2,000 for a fuel pump - did I read that correctly? - :eyebulge:


humfrz

log you afr and commanded afr make sure they follow failry closely under full load
also log ltft and see its sat below 10%

https://www.autocodes.com/p219a.html


that code can also be caused by intake or exhaust leaks and low fuel pressure

Yeah 2 grand. :eyebulge: I watch AFR and fuel trims, even if I don't log them. So far they are perfect. AFR is great, fuel trims within +-5