02-07-2007, 04:25 PM | #1 |
3" Exhaust
Join Date: Dec 2006
Location: Orlando, Fl
Posts: 52
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air fuel mixture
Hello
can anyone tell me about the emissions control system diagnotic code 25 air-fuel raio rich malfunction. I don't know which sensor i need to change. thanks |
02-08-2007, 12:43 PM | #2 | |
Supra Owner
Join Date: Oct 2005
Location: GA, USA
Posts: 2,209
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Quote:
kidsusukigsxr, please answer the following questions:
__________________
Phil '94 Supra Turbo, 6spd, 'APU'+ Displacement is no replacement for boost. Life begins at 30psi. NB: Please consider posting any help requests in a new thread instead of asking me for help privately. About 99.9+% of the time, private help requests end up covering great information that could be very valuable to other forum members. If you have a good reason for needing the help request to be private, I'll consider it. If not, then why not give everyone else the opportunity to pitch in too, and/or learn from the information? Remember, there's no such thing as a dumb question. We're all here to help within this family of Supra owners. Last edited by pwpanas; 02-09-2007 at 01:12 AM. |
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02-09-2007, 01:06 AM | #3 |
3" Exhaust
Join Date: Dec 2006
Location: Orlando, Fl
Posts: 52
|
Code 25
yes your correct. I miss wrote. thank you. I'll looking into the things you listed. ok your asking so I'll tell ya. before i knew anything about supra's I bought a book and jumped in,learning as i go. I blew the engine i bought the car with then went to the salvage yard a picked up the engine that I now have. I didn't know what i was buying nor did he savage yard know what they were selling. Because i got it for $450. I got a 7M-GTE and put it in. so i have a 7M-GTE engine in a 1989 manual supra. Now whats very strange is that this engine didn't have the turbo in it or else the salvage yard would have known. Did they make non turbos with 7m-gte engines without the turbo? Or someone pulled if off. · No modification · 89 7M-GTE engine with out the turbo Thank you |
02-09-2007, 03:04 AM | #4 |
20psi boost
Join Date: May 2006
Location: New Haven/Hamden
Posts: 793
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7MGTE were turbo only
7MGE were non-turbo only Thats what the T means, turbo. Someone swiped it before you bought it. So if I understand this correctly, you have a 7M GTE engine with a 7M GE exhaust manifold bolted on, correct? I just have one question, are the turbo oil line bosses blocked off? (where the turbo oil line would bolt to the block, one is a 2 stud/nut flange, one is a 17mm union bolt) I'm guessing you are using the injectors that came with your GTE? I'm also guessing you are using your GE ECU? What did you use from your blown motor to make the GTE run? |
02-09-2007, 03:53 AM | #5 |
3" Exhaust
Join Date: Dec 2006
Location: Orlando, Fl
Posts: 52
|
WOW u know your sh........... lol all of you guys in here know your stuff.
well i'm going way back about 6 years ago. a buddy who knew about cars helped me and if my memory serves me correctly we used the existing harness and ecu, he swapped one or 2 plug and we connected the harness and engine (i can't remember let me look into it and get back to you). I can't rememeber if we used the same harness. For sure we swapped out the exhaust manifold. using existing ecu |
02-09-2007, 03:27 PM | #6 |
20psi boost
Join Date: May 2006
Location: New Haven/Hamden
Posts: 793
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Im guessing you are using your GE MAF sensor? (the sensor right after the air filter)
If that is the case, I think that is your problem. GE and GTE MAF's are very different, not just in resistance values and voltages, but they are physically different also. GE MAF's have 7 terminals and GTE MAF's have 5. Even if you spliced a GTE MAF connector into a GE harness you would still have problems. Correct me if I'm wrong but so far you have GE MAF, GE ECU, GTE engine right? Really need to know if you are using the GE or GTE injectors. |
02-09-2007, 04:01 PM | #7 |
500whp yet?
Join Date: Aug 2005
Location: Plantation, Fl.
Posts: 1,052
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They also have completely different ignition systems also. GE is run by a distributor and the GTE is run by coil packs. The ignitors are not the same. Curious as to how you got this working. lol.
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02-09-2007, 05:29 PM | #8 |
20psi boost
Join Date: May 2006
Location: New Haven/Hamden
Posts: 793
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Yes we know this. http://toyota-supra.info/forums/showthread.php?t=7460
I was just telling him what is different that would mess with the A/F ratio. He spliced in connectors from a GTE harness for the coil packs. |
02-10-2007, 02:20 AM | #9 |
3" Exhaust
Join Date: Dec 2006
Location: Orlando, Fl
Posts: 52
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I HAVE 2 SUPRA'S this one 89 non turbo
This is a challenges for you guys.
I own 2 supras. the supra that i have been asking questions about since joining has been on the 1988 auto turbo. So don't reffer back to any of my previous questions. This question about the code 25 is on my 89 manual non turbo supra. Let me get back to you guys on this. I don't want to give you the wrong info. This car is running good accept for the engine light. I'm going to look into the engine and get back to you guys. cool. til then i'll be posting questions on 88 turbo. thanks guys. |
02-11-2007, 02:59 AM | #10 |
20psi boost
Join Date: May 2006
Location: New Haven/Hamden
Posts: 793
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I give up. First you said-
"· 89 7M-GTE engine with out the turbo" Now its- "til then i'll be posting questions on 88 turbo." You lost me. |
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