Diagnosis check

Animosity · 01-13-2009, 08:23 PM

Hey all.
My car has been running rather sloppy lately so I decided to do the diagnosis.

I came up with Codes 14, 31, 41 and 51.
I was wondering if anyone could tell me what the codes meant and how to help solve the problems!
Help is appreciated.

pln · 01-13-2009, 11:41 PM

Thats a lot of errors.. what happened? seems to be AFM.ignition.ac problem. TPS
look here

http://www.toyota-supra.info/forums/...s-problem.html

Busted Knuckles · 01-14-2009, 01:06 AM

Let's see.....

Code 14 - Ignition signal - No 'IGF' signal to ECU 6 - 8 times in succession.
Code 31 - Air Flow Meter Signal - Open circuit in VC signal or short circuit between VS and E2 when idle contacts are open.
Code 41 - Throttle Position Sensor Signal - Open or short circuit in throttle position sensor signal.
Code 51 - Switch Signal - No 'IDL' signal, 'NSW' signal, or 'A/C' signal to ECU with terminals E1 and TE1 shorted.

If all this came on at once, this looks like a pretty bad systems failure. You need to check the wire harness for damage. I'd concentrate from where the harness comes out of the firewall to where it wraps around to the front of the engine.

Animosity · 01-14-2009, 01:07 AM

Ah yes i removed the A/C because it was broken anyway. I don't know if it all came on at once becuase i just learned about performing a diagnosis today. And as for the wire harness that would be a nightmare for me. I'm not very handy with electonics =/

01-13-2009, 08:23 PM	#1
Animosity Stock Join Date: Aug 2008 Location: Oregon Posts: 10	Diagnosis check Hey all. My car has been running rather sloppy lately so I decided to do the diagnosis. I came up with Codes 14, 31, 41 and 51. I was wondering if anyone could tell me what the codes meant and how to help solve the problems! Help is appreciated. __________________ Animosity

01-13-2009, 11:41 PM	#2
pln Stock Join Date: Dec 2008 Location: sweden Posts: 5	Thats a lot of errors.. what happened? seems to be AFM.ignition.ac problem. TPS look here http://www.toyota-supra.info/forums/...s-problem.html __________________ JE,RPS-Max,MAPECU2,ARP,EIBACH-PRO,PTE-550cc,WALBRO,GT3582r,INNOVATE

01-14-2009, 01:07 AM	#4
Animosity Stock Join Date: Aug 2008 Location: Oregon Posts: 10	Ah yes i removed the A/C because it was broken anyway. I don't know if it all came on at once becuase i just learned about performing a diagnosis today. And as for the wire harness that would be a nightmare for me. I'm not very handy with electonics =/ __________________ Animosity Last edited by Animosity; 01-14-2009 at 01:10 AM.

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01-14-2009, 01:06 AM	#3
Busted Knuckles 12psi boost Join Date: Dec 2007 Location: Atlanta Posts: 300	Let's see..... Code 14 - Ignition signal - No 'IGF' signal to ECU 6 - 8 times in succession. Code 31 - Air Flow Meter Signal - Open circuit in VC signal or short circuit between VS and E2 when idle contacts are open. Code 41 - Throttle Position Sensor Signal - Open or short circuit in throttle position sensor signal. Code 51 - Switch Signal - No 'IDL' signal, 'NSW' signal, or 'A/C' signal to ECU with terminals E1 and TE1 shorted. If all this came on at once, this looks like a pretty bad systems failure. You need to check the wire harness for damage. I'd concentrate from where the harness comes out of the firewall to where it wraps around to the front of the engine.