Jump to content


Photo

93 2jzge lean code (code 25)


  • Please log in to reply
1 reply to this topic

#1 wesleyx62

wesleyx62

    I HATE 7M

  • real members
  • 80 posts
  • Gender:Male
  • Location:colorado
  • Powered By:5ME
  • Country:United States

Posted 16 October 2017 - 11:14 AM

i keep pulling a code 25 fuel system lean on my 93 sc300 2jzge (in my 78 cressida). here is a list of things i have already check/tried

  • rebuilt ecu and have already tried swapping with a known good working unit. 
  • new o2's (single wire)
  • re-calibrated tps
  • checked intake manifold and injectors for vac leaks (with brake clean while running) 
  • new injectors (rebuilt) 
  • i have a inline walbro 255 from summit
  • fuel pressure reads accordingly and doesnt fade after getting warm

im out of ideas and im looking for advice as to what i should be leaning towards now...

 

a few things i have considered but am not sure about:

  • walbro is external inline (my car came with a mechanical fuel pump on the 4m) possibly causing a pickup issue in tank as the higher pressure required from the new pump
  • iac vacuume routing incorrect. i need to find someone who has done a deleted egr and all other emissiosn related vacuume set ups like me. 
  • i suck at building cars and should pick up gardening instead. 

Thank you for any real help.

 



#2 Gordo

Gordo

    Resident Grumpy Old Man

  • real members
  • 7087 posts
  • Gender:Male
  • Location:The Republic of Texas
  • Interests:Your mother
  • Country:Texas

Posted 16 October 2017 - 01:32 PM

i suck at building cars and should pick up gardening instead. 

 

I think you found the answer...

 

But Wesley Crusher, converting a car from carb to EFI is not as simple as you think.

I suspect you are cavitating your pump due to poor pick up inside the tank.

And if you don't have the pump mounted level with the bottom o the tank, that makes it worse.

 

The tube in the tank was meant to feed what, maybe a whole 150 HP.

 

You are beyond skate boards, and building cars on Gran Torismo.

So if you can't handle it, try gardening.


Prefixes for 'Gordo'
 
口 Holy Shit  
口That ass hole,  
口The Magnificant  
口That old fart,  
口The infamous  
口That crazy  
口That 7M guy,   

 





1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users