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Discussion Starter · #1 · (Edited)
95 Aero throwing codes can anyone assist??? Problem Fixed Now!

I have a 1995 Saab 9000 Aero 5 Spd. I consistently throw codes every time I drive. After I start the car it will always throw the code of E7061 in system 3 the ABS/TC system then after shortly driving it will throw at least one more code D7591 in system 2 the EC Throttle system and then it does sometime and has more frequently after the last couple of days thrown the code 68390 code. When it throws the 68390 code in conjunction with the two other codes the car goes into limp mode while driving. I pulled these codes with the Saab ISAT which I have had to carry around with me to clear the codes out all the time to get to where I am trying to go. If anyone has any advice and point me in the direction as to what could be causing these codes I would greatly appreciate it. Thanks for everyone's help in advance.
-Chad
 

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Discussion Starter · #2 ·
I have a 1995 Saab 9000 Aero 5 Spd. I consistently throw codes every time I drive. After I start the car it will always throw the code of E7061 in system 3 the ABS/TC system then after shortly driving it will throw at least one more code D7591 in system 2 the EC Throttle system and then it does sometime and has more frequently after the last couple of days thrown the code 68390 code. When it throws the 68390 code in conjunction with the two other codes the car goes into limp mode while driving. I pulled these codes with the Saab ISAT which I have had to carry around with me to clear the codes out all the time to get to where I am trying to go. If anyone has any advice and point me in the direction as to what could be causing these codes I would greatly appreciate it. Thanks for everyone's help in advance.
-Chad
I also want to throw in that I the check engine light flashes five times when I turn the key to jomp mode and then another 6 times after that. According to http://www.saab9000.com/procedures/powertrain/diagnosis/faultcodes.php the 5 times means it is the throttle position sensor and the 6 times means it is Lambda (oxygen) sensor. However according to http://faq.saabnet.ru/_9000/tractioncontrolsystem.pdf there is nothing indicating a Lambda (oxygen) sensor failure unless that is the code D7591 which was given by ISAT when I pull the codes. I just thought I would update the thread on my progress on trying to solve this issue and any help is greatly appreciated.
-Chad
 

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Discussion Starter · #4 · (Edited)
TCS problems Chad. Sounds like a its time for a throttle body. Can I borrow the ISAT?
Thanks for the input Drew. I will see if my buddy has a extra TB for me to toss on to see if that solves the issue. Regarding the ISAT, it is not mine it is my friend Dennis "Saab Doctor" here in KC. He has been a godsend since this has been my first Saab and I absolutely love it!!! If you were local I would be more than happy to meet up with you and hook it up and run codes for ya. I know what you are saying though as I want to buy one of my own but it seems like they are impossible to come by. Once again thanks for the help and I will keep you posted on how it goes with replacing the TB and outcome of it.
Best regards,
Chad
 

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From what I've seen on these boards and saabnet, the 6 flash O2 sensor code usually isnt the O2 sensor. The 5 flash definitely indicates the TPS, which unfortunately is integrated into the TB. My guess is the crappy running in limp home mode triggered the o2 sensor code at one point.

PS...you should post pics of the Aero and Supra
 

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Discussion Starter · #6 · (Edited)
From what I've seen on these boards and saabnet, the 6 flash O2 sensor code usually isnt the O2 sensor. The 5 flash definitely indicates the TPS, which unfortunately is integrated into the TB. My guess is the crappy running in limp home mode triggered the o2 sensor code at one point.

PS...you should post pics of the Aero and Supra
Hey Andrew,

Thanks for the input as I did not get a chance to swap out the TB yet to see if that solves the problem which I am hoping it does. As I mentioned to Drew earlier in the thread I was hoping to swap it out today things just got 2 crazy however I am doing it tomorrow and my friend, Dennis "The Saab Doc" said he has a extra TB laying around for me to try. His website is http://saabdoc.com/ . I appreciate your help on this and I will keep you and Drew posted as I will update the thread tomorrow evening if the TB replacement cures it.

I checked out your website and your Aero looked good man! I must say to download the T5 suite as it is absolutely awesome and do the 3" Turbo back exhaust but I would recommend a 3"DP to go with it too. I recommend the Aerodyte as it is a true 3" DP if you can still grab one from Barry as I know he was running thin on them. I did the Aerodyte and went with it over the JT due to the JT going from 2.5" off the turbo then to flaring out to 3" whereas the Aerodyte is a true 3"off the turbo! Barry was awesome to work with and he turned me onto the T5 suite. If you want pics of my DP before installation let me know I should still have some around.

Regarding pics of the Aero and the Supra I will still have to wait a little while before taking pics of the two together as the Supra is still down and getting ready to get sprayed with some fresh paint :)! However if you want to see pics of the Supra before the build go to
http://s54.photobucket.com/albums/g109/nosup4u97/TX2K7 Supra Nationals/My MKIV/ and for pics through the build go to http://s54.photobucket.com/albums/g109/nosup4u97/TX2K7 Supra Nationals/My MKIV/Supra Build/ . Let me know what you think. As soon as I get it done I will do a little photo shoot of the two of them.
Chat with u soon,
Chad

P.S... If I am able to make it down to TX2K11 this year I will have to hit you up and maybe meet up in person as Supra Nationals is always down there in Houston. We stay in Houston but the events are held in Katy out at Hennessy's track for the last 3 yrs now.
 

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I recall that the new throttle body needs to be calibrated after you swap it in. Because if you don't do that, you run the risk of buring up the tcs ecu overworking itself trying to go off old values.

I hate TCS problems. Good luck.
 

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Thanks for the compliments. I've been trying to keep it stock...as a college student, I don't need the headaches...even though I had to do a rebuild last year. Its plenty fast in stock form to keep up with my friends. But I know T5 suite will eventually happen. And an exhaust, this one is about rusted to bits.

As for TX2K11...I would love to be there, but it all depends on if I'm home or in Indiana. I know I will have friends there. One of whom's father owns a white single turbo MKIV that he daily drives. BTW...nice supra. What turbo is that. I wanna say my friend's dad's is a turbonetics t61 or something along those lines. Is the respray to fix shitty paint, or are you changing colors?
 

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Discussion Starter · #9 ·
Update

UPDATE!!!!!

I swapped out the TB today and that did cure the problem!!! Thanks Drew, Andrew. [email protected]@ & my buddy Dennis "The Saab Doc" for all the input and help. Car is running good now and pulling hard :)!!!
-Chad
 

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Discussion Starter · #10 ·
I recall that the new throttle body needs to be calibrated after you swap it in. Because if you don't do that, you run the risk of buring up the tcs ecu overworking itself trying to go off old values.

I hate TCS problems. Good luck.
Hey [email protected]@, thanks for the input. How do you recalibrate the new TB? When I put the new TB on it seemed to set itself although I did clear the codes first with the ISAT. Is there something else I need to do to calibrate it? Thanks man,
-Chad
 

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Discussion Starter · #12 · (Edited)
Thanks for the compliments. I've been trying to keep it stock...as a college student, I don't need the headaches...even though I had to do a rebuild last year. Its plenty fast in stock form to keep up with my friends. But I know T5 suite will eventually happen. And an exhaust, this one is about rusted to bits.

As for TX2K11...I would love to be there, but it all depends on if I'm home or in Indiana. I know I will have friends there. One of whom's father owns a white single turbo MKIV that he daily drives. BTW...nice supra. What turbo is that. I wanna say my friend's dad's is a turbonetics t61 or something along those lines. Is the respray to fix shitty paint, or are you changing colors?
Hey Andrew, you are welcome 4 the compliments bro as thanks for the compliments in return on the Supra. I understand what you are saying on the headaches as my 9K is my d/d I traded my '95 S14 for it a 1.5 yrs ago and it came with a manual boost controller, boost gauge and forge bov but that was all that was done. Since then I have done urethante motor mounts, utethane control arm bushings, 3" DP and full 3" exhaust because my stock was rusting off too and I figured if I was going to do exhaust I was going to eventually do DP so just do them at the same time and get it done. The urethane stuff was done due to the stock mounts and bushing cracking and needing replaced anyways. I want to eventually do injectors when I rebuild as I got the car with 212K and now have around 268K miles. How many miles were on yours when you did your rebuild last year? I agree they are fast stock as mine dyno'd at 223 fwhp and 269 lbs of torque on 15 lbs of boost stock other than the manual boost controller. The T5Suite is something I am going to take my time to learn and eventually hope to integrate. When I rebuild though I am entertaining the idea of bigger cams as well and stronger valve spring.

Regarding the Supra that turbo is a Garrett GT42/76R dual ball bearing turbo. I went with that turbo for the power that I am wanting out of that car as I will definitely not be d/d that car and it will never see water :)!!! The reason for the respray was just due to the red starting to fade on the door handles and the targa plus the car was N/A (2JZ-GE) to begin with so I did a complete swap ovet to the TT (2JZ-GTE) motor and had the engine bay painted and clear coated before the install of the new motor. I also did switch colors and went to a brighter red instead of the renaissance red. Chances are I might have chatted with your friends father as I have been coming down there since TX2K6 but I missed these last two unfortunately :(! I hope to see you there this next year as I won't be coming down if the Supra is not complete! So hopefully I will be there since it has been down for 3 yrs. LOL! Either way hope to see you there buddy and see your Aero in person. Let's keep in touch my e-mail is [email protected]
-Chad
 

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I did the rebuild at around 162k. Bought the car with 146k and its about to roll over to 171k. I blame alot of the car's problems on its previous owners. The car has some nasty rock chip and a bit of clear coat failure on the bumpers. But I have a sneaky suspicion it was driven hard an put away wet. The oem clutch obliterated itself around 150k, which seems a bit early to me. Its definitely not as dead reliable as my first 9k, but its way more enjoyable to drive.

I'm really hoping to be down there this time, but school is school. Just gotta hope the breaks line up with what you want to do. I actually did a meet in St. Louis last year and met [email protected]@. So maybe if that happens again next year, you can make it over. But yeah....really would love to be there for TX2k11, and see what boostlogic has going this year.
 

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Discussion Starter · #14 ·
I did the rebuild at around 162k. Bought the car with 146k and its about to roll over to 171k. I blame alot of the car's problems on its previous owners. The car has some nasty rock chip and a bit of clear coat failure on the bumpers. But I have a sneaky suspicion it was driven hard an put away wet. The oem clutch obliterated itself around 150k, which seems a bit early to me. Its definitely not as dead reliable as my first 9k, but its way more enjoyable to drive.

I'm really hoping to be down there this time, but school is school. Just gotta hope the breaks line up with what you want to do. I actually did a meet in St. Louis last year and met [email protected]@. So maybe if that happens again next year, you can make it over. But yeah....really would love to be there for TX2k11, and see what boostlogic has going this year.
That really sux to see you have to do a rebuild that early. Clearly the previous owners did not maintain the car. When I got mine it came with a 3 ring binder with all service records completed by Brad from George's Imports here in KC if you have heard of him? He is quite popular amongst the Saab community especially with the methanol inhection. I am sorry to hear about those previous problems hopefully no more will persist.

Hopefully TX2K11 will line up with your schedule it is always a good time. Let me know when the St. Louis meet is and I will definitely try to make it up there. I am only 4 hrs away and that is a fun little weekend trip! Catch a Cards game too! With Boostlogic I do know Keenan, Zohair and yes the ever so famous SW too and it should be interesting to see what them and Nero from Titan have in store for each other! Hopefully Ryan and some of the other AZ guys will make it this year too like they did in 2K6. That was a fun year! Well I look forward to keeping in touch bro.
-Chad
 
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