Codes 25,26,51!

supradaddy0803 · 08-21-2007, 09:51 PM

The o2 sensor isnt gonna make you run hot unless you are running really lean. Then you would see the manifold glowing but if you had that I am sure you would have said so. The only thing I see that comes to mind is there isnt enough of a signal getting to the computer to give it the proper signal so it is freaking out. I know there is a bunch of people that use different o2 sensors because of they are better for widebands but to that effect I am not sure.

dcrusupra · 08-21-2007, 10:17 PM

Did you push on the gas pedal or have the A/C on while you were pulling codes? Either one would trigger a 51.

justin1642 · 08-21-2007, 10:25 PM

no i figured that came on cuz i don't have the a/c hooked up. the compressor is still there i just don't have a belt or anything on it and also i think the lines are cut on it. i wasn't worried about that one cuz it never caused the light to come on before.

justin1642 · 08-27-2007, 11:11 PM

ok i found that a wire ripped out of the o2 sensor plug so i splice another plug on it from a cut harness i had laying around the wires are spliced to the right ones but still the check engine light is on. does anyone know why its still on?

08-21-2007, 09:51 PM	#1
supradaddy0803 12psi boost Join Date: May 2006 Location: Athens, TX Posts: 308	The o2 sensor isnt gonna make you run hot unless you are running really lean. Then you would see the manifold glowing but if you had that I am sure you would have said so. The only thing I see that comes to mind is there isnt enough of a signal getting to the computer to give it the proper signal so it is freaking out. I know there is a bunch of people that use different o2 sensors because of they are better for widebands but to that effect I am not sure. __________________ 1987 supra NA 5 speed 1JZGTE swap Tokico Illumina 2 and Eibach springs Tokico pillow blocks Suspension Techniques front and rear sway bar HKS super dragger cat-back exhaust plus test pipe Greddy Profec B spec 2 boost controller HKS type 1 turbo timer Supra sport solid steel drive shaft Walboro 255 fuel pump JZA70 Front end mod 18" Volk Racing AV3 18x8.5 front 18x9.5 rear

08-21-2007, 10:17 PM	#2
dcrusupra 500whp yet? Join Date: Aug 2005 Location: Plantation, Fl. Posts: 1,052	Did you push on the gas pedal or have the A/C on while you were pulling codes? Either one would trigger a 51. __________________ New Rebuild My CarDomain

08-21-2007, 10:25 PM	#3
justin1642 3" Exhaust Join Date: Mar 2006 Location: Michigan Posts: 213	no i figured that came on cuz i don't have the a/c hooked up. the compressor is still there i just don't have a belt or anything on it and also i think the lines are cut on it. i wasn't worried about that one cuz it never caused the light to come on before. __________________

08-27-2007, 11:11 PM	#4
justin1642 3" Exhaust Join Date: Mar 2006 Location: Michigan Posts: 213	ok i found that a wire ripped out of the o2 sensor plug so i splice another plug on it from a cut harness i had laying around the wires are spliced to the right ones but still the check engine light is on. does anyone know why its still on? __________________

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