Please Help - Page 2

suprra_girl · 07-29-2006, 09:40 PM

check your gounds
this is why the car won't go!

the two earths on the intake manifold are the grounds for the ecu

check your grounds!

Isphius · 07-29-2006, 10:58 PM

There is a way to test your ecu by measuring its resistance, I dont know what part it will check out tho. But generally if the resistance of any electrical component is different than factory, Its a good idea to replace it. Look in the tsrm. And yes, Def check all your grounds. Bad ground = Bad stuff.

Toyota87Supra · 07-30-2006, 05:41 PM

It was a blown fuse so to my EFI but now that it is fixed my car starts right up but it is still having trouble running. I know there is something messed up with my TPS because it idles at 500 rpm but i am still getting a rich fuel mixture which leads me to believe my Mass air Meter is dead too. I checked the codes again and got 51 and 31 I need to know if there is anything i should do before buying a new TPS and MAF.

1988gte · 07-31-2006, 06:06 AM

Quote:

Originally Posted by suprra_girl

check your gounds
this is why the car won't go!

the two earths on the intake manifold are the grounds for the ecu

check your grounds!

agreed been there done that, fixed broken ground and idled just right after

suprra_girl · 07-31-2006, 06:22 AM

code 31

Air Flow Meter Signal

(7M-GE)
Open circuit in VC signal or short circuit between VS and E2 when idle contacts are closed.

(7M-GTE)
Open or short circuit in air flow meter signal.

Air flow meter circuit
Air flow meter
ECU

http://cygnusx1.net/supra/library/TSRM/fi/FI_038.html

code 51

Switch condition signal

No "IDL" signal, "NSW" signal or "A/C" signal to ECU, during diagnosis check.

Check to to make sure you were in Park or neutral when doing the diagnostic and also check to make sure a/c wasn't switched on when doing the diagnostic

try another air flow meter
and you haven't said if you have fixed your grounds

Supra2NR · 07-31-2006, 06:29 AM

jus listen to the girl she knows what shes talking about

jus fix the ground

and if that doesnt work
consider a licensed professional

Isphius · 07-31-2006, 02:52 PM

Well i would assume he now fixed the elctrical problem becasue the car starts, And is now trying to fix the bad running problem. But yes the ground wires are probably what caused the code 11 in the first place. I think it would be fine now that its giving him real codes.

Toyota87Supra · 08-02-2006, 08:26 AM

Yes the grounds are good now im just gunna replace the MAf And TPS and see what happens.

suprra_girl · 08-02-2006, 08:29 AM

just do the afm (not maf on ours)

07-29-2006, 09:40 PM	#11
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	check your gounds this is why the car won't go! the two earths on the intake manifold are the grounds for the ecu check your grounds! __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

07-29-2006, 10:58 PM	#12
Isphius 500whp yet? Join Date: Nov 2005 Location: Long branch, NJ Posts: 1,006	There is a way to test your ecu by measuring its resistance, I dont know what part it will check out tho. But generally if the resistance of any electrical component is different than factory, Its a good idea to replace it. Look in the tsrm. And yes, Def check all your grounds. Bad ground = Bad stuff. __________________ Yay the supra assistant is gone!!! WEEE!!

07-30-2006, 05:41 PM	#13
Toyota87Supra Intake Join Date: May 2006 Location: New Hampshire Posts: 34	It was a blown fuse so to my EFI but now that it is fixed my car starts right up but it is still having trouble running. I know there is something messed up with my TPS because it idles at 500 rpm but i am still getting a rich fuel mixture which leads me to believe my Mass air Meter is dead too. I checked the codes again and got 51 and 31 I need to know if there is anything i should do before buying a new TPS and MAF. Last edited by Toyota87Supra; 07-31-2006 at 12:54 AM.

07-31-2006, 06:22 AM	#15
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	code 31 Air Flow Meter Signal (7M-GE) Open circuit in VC signal or short circuit between VS and E2 when idle contacts are closed. (7M-GTE) Open or short circuit in air flow meter signal. Air flow meter circuit Air flow meter ECU http://cygnusx1.net/supra/library/TSRM/fi/FI_038.html code 51 Switch condition signal No "IDL" signal, "NSW" signal or "A/C" signal to ECU, during diagnosis check. Check to to make sure you were in Park or neutral when doing the diagnostic and also check to make sure a/c wasn't switched on when doing the diagnostic try another air flow meter and you haven't said if you have fixed your grounds __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!

07-31-2006, 06:29 AM	#16
Supra2NR 1000whp postwhore Join Date: Apr 2006 Location: Chi-Town Posts: 1,643	jus listen to the girl she knows what shes talking about jus fix the ground and if that doesnt work consider a licensed professional __________________ http://www.myspace.com/supra_2nr Into Bikes now,, apparently the supra couldnt kill me, so my zx6 might lol

07-31-2006, 02:52 PM	#17
Isphius 500whp yet? Join Date: Nov 2005 Location: Long branch, NJ Posts: 1,006	Well i would assume he now fixed the elctrical problem becasue the car starts, And is now trying to fix the bad running problem. But yes the ground wires are probably what caused the code 11 in the first place. I think it would be fine now that its giving him real codes. __________________ Yay the supra assistant is gone!!! WEEE!!

08-02-2006, 08:26 AM	#18
Toyota87Supra Intake Join Date: May 2006 Location: New Hampshire Posts: 34	Yes the grounds are good now im just gunna replace the MAf And TPS and see what happens.

08-02-2006, 08:29 AM	#19
suprra_girl 7M POWAH! ;) Join Date: Jun 2004 Location: New Zealand Posts: 2,312	just do the afm (not maf on ours) __________________ Please use the forum to ask your questions as they will get replied to much faster than pming me Pics of my build. "Good girls are just bad girls that don't get caught" Do a diagnostic first!