Saab 9-5 DIY: ECU Replacement - Trionic Seven
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- Опубліковано 27 сер 2024
- This is how to replace or remove the Engine Control Unit (ECU, or Engine Control Module, ECM) in a Saab 9-5.
Please note that if your car is a right-hand drive version, the ECU is located on the left side of the vehicle.
These instructions do not apply to the Saab 9-3 since the ECU is instead located behind the glovebox.
Swedish: Hur man byter en ECU/databox/motorstyrdon i en Saab 9-5.
Trionic Seven is the UA-cam channel for Saab enthusiasts.
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hi and thanks again for your tutorials, they are a big help! I recently decided to upgrade the ECU on my 9-5 Aero and must admit was a little daunted with the process/difficult access/losing those nuts, especially the two securing the unit itself - I could see those disappearing so quickly.
So I invested in a Battery Terminal / Wiper Arm removal - took less than a minute to get the arm off, plus an extension for my 1/4" socket set and the all important 1/4" Universal Joint tool which made accessing the nuts so easy it was a dream. Another thing I did was fill the 10mm socket with thick leather balm before I started, which did an excellent job of holding the nut in the socket - I didn't have to worry about dropping it.
This made the whole process of getting the ECU out and a Stage 2 replacement (from Scott Rowntee on EBay) so easy and fast. No stress, no worry about access or losing the nuts.
Just thought this might help others who might be contemplating this upgrade but feel it's too hard. And it saved me several hundreds of dollars doing it myself.
As usual, thanks again these video contributions are very much appreciated.
+Islam Eldib Thank you very much, glad to be of service!
do you have to program the new ecu
Is it ok to just swap them or do you have to code them in some sort of way? I bought a already tuned ecu from another saab 95 and want to switch but would be nice to know this before i switch the ecu. Thank you.
Did you ever get an answer? I heard you can disconnect your battery for 30 mins, plug in the new ECU, turn your car on (not started) let it sit for 5 mins, turn your car off then start it. I'd like to know as I'm thinking I may need a new one. Don't have the $$$ to have it programmed, but if that trick works, I'll definitely pick it up from the pull & pay
@@amberlymartin4713 you have to remarry the ecu with a gm tech 2
@@rizzlypig9822 oh, okay. Well, now I have an excuse as to why I'm dropping that kind of money on a tech 2! 😅 Thank you!
Thx dude, gr8 vid..now I go put in my injectors and biotune stage3 ecu
Great explanation- THANK YOU!
This was is a great vid! Thanks!
+Preston Roland Thanks!
hey, for my SAAB 9-5 2.0 1999, i've replaced the ECU and the TWICE CONTROL UNIT with new keys (all the kit) but my car still doesnt not recocnize the key (Key not accepted)... what can i do for this problem
I'm sure it's too late to help you, but for the next person's info: the TWICE unit and replacement keys must be "married" to the Saab with a Tech II device.
thanks for an excellent video! I should have watched it before I started work on my car, as I broke two of the clips holding the black plastic screen to the wind screen. Anyone who can tell the part number of those clips?
Sorry, don't have the EPC on me right now. Perhaps ask in our forum? facebook.com/groups/733705113501723/
I thought that the new ECU had to be "married" to the car. You're telling me that if I get an ECU with a different tune I can just throw it in there and it will work?
The video just shows how to swap out the hardware, it assumes the software matches the car and that the box has been married to the car.
Perhaps make a video on how to marry hardware to the car :)
Either use tech2 or check my opensid flashing video!
So to be clear, you can’t pull out a T7 ecu and plug and play?
You have to use a tech 2 to marry them?
My plastic cowels are starting to form cracks from the topmost parts due to age, Should I get it replaced by a salvaged part? Or is it nothing to be concerned about?
+Man Oat They stop water from entering behind the firewall and into the passenger compartment. If they leak, you might get water behind the glovebox or the instrument panel (I think). I would have them looked at just to be sure.
I took my car to the air emission test and came back -Incomplete-
Do you know what I could do to fix the issue? I did the drive cycle drive on the high way for 1 hour and same result
Thank you. I just subscribed to your channel. Lots of great informational videos. I just picked up my first ever Saab.
Its a 2003 9-5 Aero , Automatic USA model. Looking to do a quick tuneup, make sure all hoses are in great shape and fix a vibration I feel in the car when idling.
Any tips or recommendations on upgrades :) . I see people referencing E-85. I run E-85 in my Supra and it would be awesome to do the same for SAAB
+Mohammed Illiyash You probably have the same idle vibration as I have, it's probably bad motor mounts. I know that the torque rod busingis completely shot, so I will start with that one. Biopower conversion is very good for your saab, except for the fuel pump. If you want to go off the deep end, check out our community at trionictuning.com, and you'll learn how to do tuning and biopower conversion on your own :)
Thanks for your comments and kind words! The saabs are very upgradable, and there's a ton of stuff you can do without breaking the bank too much. I would start to take a look at suspension and maybe upgrade the shocks, springs and bushings. Good luck!
+Trionic Seven: For Saab Enthusiasts Thank you for the tips. I will join the trionictuning.com and poke around. :)
Wodner if you can help. Saab 2001 2.3t SE estate. I get fault code P1625, and as it states in diagnostic help: Speedometer may not be working. However my Rev counter doesn't work either. Is there a way to reset all so communication is back to normal?
+coventry plumbing and heating 9-5? No idea about that code, better ask on the forums.
sounds like someone needs there abs module remanufactured
Hej! Tack för en mycket detaljerad och informativ video. Jag har dock en liten fundering, det är inte så att man måste ha tillgång till TECH2 och "gifta" den nya boxen med bilen?
Jo, för att en box ska passa måste både mjukvaran vara anpassad till din hårdvara och koderna måste stämma med bilens. Det har jag dock inte tagit upp i filmen eftersom jag bara visar själva bytet. Filmen hade blivit så lång och krånglig annars. Har inte tech2 själv men kodar boxar på annat vis (se min opensid-film), men jag tror tech2 kan gifta in boxar
+Trionic Seven: For Saab Enthusiasts
Aj fan, det var det jag befarade... 😧 Det är jordningen till ACC-relät som inte funkar och vi misstänker att det är den utgången på boxen som lagt av. Jag får väl hoppas på att det inte är själva styrboxen det är fel på utan brott på kabeln som går ut från den. 🤔
Konstigt, aldrig hört om det felet. Styrboxarna är det sällan fel på, Saabs boxar tål massor av misshandel (tro mig, jag vet!)
+Trionic Seven: For Saab Enthusiasts
En Saab mekaniker jag talade med igår sa samma sak, att det högst osannolikt är själva styrenheten det är fel på. Anledningen till att det inte finns jord till relät är kanske så enkelt att ECU:n får fel info från t.ex tryckvakten och därför inte ger något på den kontakten. Tror jag får gå vidare med att först provtrycka systemet och se om det är i ordning, det kan ju helt enkelt ha sinat sedan sist vi fyllde på gas.
Kolla i WIS och se felsökningsguiden för ACC, där står exakt vad man ska titta efter (behövs tech2)
Kan du ha två aktiva boxar samtidigt eller måste dom giftas in varje gång dom ska användas?
Hej! Du behöver bara gifta in "åt ena hållet", bilen bryr sig inte om vilken box det är, bara den har rätt kod. Ställ in rätt kod i två boxar så kan du byta bäst du vill!
+Trionic Seven: For Saab Enthusiasts perferkt! Tack!
I have a 2001 Saab 9-5 2.3l. My question is, when replacing the ECU do I have to reprogram it or does it automatically reprograms itself?
+Eloy Guzman No, you must flash the correct software on the ecu before installing.
I'm having trouble locating my ecu behind the glovebox on my 9-3. can you help me out?
+LEVI LOCK Hey! i don't know anything about the 9-3, sorry! (If you have the ng9-3, it could be located somewhere else)
LEVI LOCK Depends on your year brother. I have an 03 and it right in front of the engine
hi great video! can you tell me how to bypass the immobilizer in my 9-5 saab?
What do you mean, bypass the immobilizer? What is the problem you're having?
I have a 2002 9-5 and I’m getting a warning key not accepted. I trying to locate the starter relay location! Anyone who know the location of the fuse box?? Is there anywhere I could bypass and have it started??
Try pressing the unlock button on the key while turning it
Why did you skip the step of removing the glue that holds the boot to the car.
Hi ,I have a saab 2003 9-3- i by a T-8 need to be programet with the vin # and How i do that? p.s. iam not a mechanic
Sorry, I don't know anything about T8
Do you have to disconnect the battery first before unplugging the ecu?
I wouldn't worry about it.
What did you change on the ECU? Stage 1 tune?
+Bine Zorko +Bine Zorko I enabled OpenSID. ua-cam.com/video/MGm5-PtcWLM/v-deo.html
Cool-mine was already open. Any plans for mods?
Sure! 3" DP, diesel snorkel and stage 3 biopower is the long-term goal.
Awesome! Too bad we don't have E85 here. Also, I didn't know that from 2004 onward they installed a bigger snorkel-I might look into that. Thanks!
Hi, I have a 1997 saab 900s, it the ecu in the same location?
Your car is a T5 car and not a T7, so unfortunately I don't know the answer. Anybody else here?
I did but the niew ecu is like dead dont work how can i reset
Did you program the new ecu? This video shows just the hardware part.
Getting the wipers off on a Saab 9-5 is no problem at all if you have the right, heavy duty tool. I had to break a wiper tool to figure this one out, here's the tool: www.amazon.com/gp/product/B004CGRQGE/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1 Your videos are excellent, thank you for posting !!
Hey Trionic Seven, do I have to ,,marry'' the ecu from another Saab 95? Mines a 2.0t and i'm planing on getting 2.3 aero ecu.
You always need to marry an ECU. However it also needs to match what's actually under the hood. Why would you put a 2.3 aero ECU in your 2.0? It just won't work!
Im upgrading my turbo to td04 also got aero injectors, so i was thinking to put aero ecu and see if that changes hp
Won't work. You can't put a 2.3 ecu in a 2.0 car!
Trionic Seven would a 2.3 aero ecu increase horsepower in a 2.3 arc??
this might sound stupid but my electronic controls are all backwards, was hoping I could maybe clean the contact on the ECU and hope that it may be a quick fix? But does the ECU only control engine functions or is there another one for other things like ABS/TCS, radio etc?
When you say backwards, do you mean your car is a right-hand drive?
Trionic Seven no... I'm not THAT stupid, haha.. I mean my electronic controls. like volume up goes volume down, heat up setting puts the heat at the feet ... etc.
Hm...not exactly sure I understand. First, what car and model year? Does it affect the steering wheel controls, or does this happen on the controls on the dash? Also, volume controls and ACC redirection are separate systems so I really wonder what could be causing htat.
Trionic Seven it's a 2001 9-5 aero sedan. yeah the steering wheel controls are indeed affected. For example volume up changes from tape to CD and volume down puts the volume up. it doesn't always happen though, I'd say that 1/10 times I start my car the steering wheel controls are affected. The heating is always broken, however. now it only shoots air from the main face vents regardless of the setting and if it is very cold outside I can't change the temperature, it only shoots out very hot air.
Hm...my wife's 9-5 has a similar problem where the steering wheel buttons get weird. Think it's a grounding issue but I'm not sure. Re. the ventilation, try holding auto+off. This will show any fault codes in the ACC system. If it says "0 0" there's no fault code.
Is the 9-5 the same as the 9-3?
No, it's different.
Is there anything else that you need to do other than just plug it in
Oh yes, this is just the hardware side of replacement. You must match the VIN number and anti-theft codes.
Trionic Seven ok I recently bought a 97 900 turbo for my first car cause I love saabs but some of the gauges don't work and sometimes they do but there was a new Ecu in the glove box so I was going to switch them and see if that helped do you have a video of programming it or would I have to take it somewhere that works on saabs
From what I've heard, it's common with bad solderings in the instrument cluster on those cars. But don't quote me on it!
Trionic Seven I'll take it to the one place that works on saabs and have them look it over thanks for the info
@@TrionicSeven hi, I have a 2005 9-5 aero which had a stage 1 ecm upgrade.. I purchased another 2005 9-5 aero that has no tune and decided to swap the ecms. Now both cars won't start. They just Crank. Do I need to program something ? It's not just a straight forward swap ?
What kind of consuption do you get in your and your wifes saab?
+Anton My Aero gets aroud 9 L/100 km on the highway on 95 octane. My wife's car is too new to tell.
@@TrionicSeven Bullshit its about 15l in summer time, 25 in the winter on stock aero of mine