god damn code 21 25 26 34

[LamaRossa]

is this possible

driving home the other day i saw the check engine light came on

got home i reset the computer and it went away

came on again tonight

while driving home

normal

runs great
idles fine

just the codes


21

25

26

and 34

anyone got the code list??????????????????????

please post

thanx

lamarossa

 

[Joel W.]

<swiped it from Shaeff's sig>
http://www.cygnusx1.net/supra/techtip/engineerrorcodes.html


But it is not working right now, try this one.. Page FI-26-28
http://groundsky.co.nz/techinfo/TSRM/07_FI.pdf

 

[born2drv]

that doesn't work anymore, i've tried it too...



here this should work, i just uploaded my CD:
http://born2drv.com/TSRM/Service Manual/

click on EFI, I think it's page #26....

 

[88YotaTurbo]

Hi Lam I see you arround the pike alot. I just ran through my manual and came up with these.
21 - Oxygen sensor signal
25 - Air-ratio Lean malfunction
26 - Air-ratio Rich malfunction
34 - Turbo Pressure (AKA sometimes fuel cut)

 

[shaeff]

sounds like a boooost leak! and damn, i gotta fix that link in my sig.

-shaeff

 

[IHI-RHC7]

Lama, it is probably a boost leak or a bad o2 sensor combined with hitting FCO at some point in time since you last reset the tccs. Pull your EFI fuse and go for a drive, then report back.
Diggin the lights

 

[LamaRossa]

thanx again for all the help gentleman

im gonna buy a new o2 sensor keep swapping old ones for sometime now

weird that code for boost signal

because i never boosted on the way home to the point where it have hit fuel cut so i dont know will lookinto boost leak god damn it

im sick of fixxing shit

thanx again guys

i will report back

lamarossa

 

[LamaRossa]

ok report

just went out to my car

i did not do anything to it

check codes same shit 21 25 26 and 34

then i reset ecu fuse


all code gone

then started it up fine no codes i did rev it a few time no drive

everything seem ok

shut it off

read codes again everything is ok

i test the o2 sensor on the car while running

signal voltage = 400 mV within seconds then jump to 973mV

shut it off

i got 250 - 350 mv so my o2 sensor is ok

like i said ran fine home, drive fine ,idles fine just check engine light last night


i'll drive it soon and see it it throws codes again

what the fuck supras

my 87 na has absolutely no prob fucking turbos

lamarossa

 

[88YotaTurbo]

HEHEHE yes i feel your pain. I also have an 86 n/a and an 88 turbo.

 

[jetjock]

i test the o2 sensor on the car while running

signal voltage = 400 mV within seconds then jump to 973mV

shut it off

i got 250 - 350 mv so my o2 sensor is ok

:nono: