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| Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's for the NG900 and 9-3. This may also include suspension. |
Topic Review (Newest First)
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| 01-02-2014 10:07 PM | |
| Sluice Box Hero |
so, back at this some. PIN 39. speed signal. dont have one, dont want one, dont want to fuck with one. that being said, im thinking about buying a cheap square wave generator. it would come on with the ignition and send out a pulse to the ECU at whatever is needed (i can tune the generator, and T5 can be adjusted) and as soon as the engine starts the ECU will think im traveling however fast is needed to create maximum power. anyone think this will work? Mike D? |
| 05-14-2013 11:39 PM | |
| bogan |
I'll be interested to see how this turns out. I've had thoughts of doing somthing like this myself...... Goodluck |
| 05-14-2013 10:45 PM | |
| SOAB |
I really only need 5 of the 8 wires? And thanks for the link! I've read through that thread countless times but its been a while.. Also if your the same guy on pirate 4x4 a buddy turned me onto your build a bit ago and I gotta say this thing is SICK! |
| 05-14-2013 08:27 PM | |
| Sluice Box Hero |
https://www.saablink.net/forum/922595-post541.htm Mike is the man on this stuff. |
| 05-14-2013 07:39 PM | |
| SOAB | Hope you don't mind me jacking your thread but did you do your harness yet? I need to wire the obdII connector onto my harness and can't find a pinout for just the OBDII. |
| 02-28-2013 02:49 PM | |
| Sluice Box Hero |
just got off the phone with Mike D. wealth of info, definitely going to be my go to guy during this whole thing. after talking to him it makes me feel much better about this. i was very worried about going through with this due to the MASSIVE amounts of wire in the car, but it looks like it doesnt take much to make these engine run. ill update as i go. |
| 02-28-2013 02:47 PM | |
| Sluice Box Hero |
chico ca, and please help away. PM me your number and maybe we can work together on this. the donor car is a 1995 NG900 with a JZW stage 3+ on it. little background on the project. im planning on building a rock crawling buggy using the B204 w/ transaxle mounted sideways behind the passenger compartment. i will weld the "diff" in the transaxle to create uniform output to each half shaft. the inner CV cup will be machined down to accept a drivline flange and then the drivelines will go out to each axle. take a look at this build thread on a forum im on, it will be this basic set up, but with a much better engine and better axles Project Lo-budget Pimpin - Pirate4x4.Com : 4x4 and Off-Road Forum so, i can make a tone ring and install one of the saab sensors to create a speed signal, but i dont know what would need to be done to make the ECU pin 39 accept the signal from that sensor. does that sensor already send out a nice square wave signal? or does the the sensor send out a sin wave to the abs computer, and then the abs manipulates that into a nice square wave. if its the later, then i would be better off with some aftermarket hall effect sensor correct? i do want to have the OBD II port working, ill check out your thread in the c900 section. |
| 02-28-2013 01:13 PM | |
| mike d |
ive done this a ton, its basicly like t5ing a c900,,,, Use an ng900 harness, they are alot easier to work with if you do use a 9k harness, its not to hard to deal with, you will just have a whole heep of + leads that go to DI, injectors, AIC valves, ect. they are all burly thick wires, so they are easy to spot in the grey plug. also, the map sensor runs though the grey plug on a 9k harness, so make sure to connect that up!! pin 39 is the input for the speed signal, most things on how it reads the speed signal is adjustable inside the ECU, Again, i have to do this all the time on c900s as long as you can get ANY speed signal to read from the ecu, you can set up all the gear ratios to match in software. its a pretty easy harness to make run, just feed + power to ECU pins 1,48, and a switched to 60, ground out 24 & 25, (done though ground lug on intake manifold) and the ECU will be live and waiting for a crank signal. lastly, think about hooking up an obd2 port, its two wires, and will make the setup alot easier to deal with because you can see everything with a generic tool where are you out of? i may be able to help Mike D |
| 02-28-2013 11:51 AM | |
| Marks9-3 | Don't think he posts here really anymore but Wyldsaabman put one into an old CJ chassis. |
| 02-28-2013 11:46 AM | |
| Sluice Box Hero |
so the ecu need 290 pulses per rev? whats that mean. is this 290 clicks per mile? per kilometer? the wheel will turn 1 time for every 290 revolutions of the crank? but if that were the case, what gear would this be? 29 teeth on the tone ring multiplied by 10? any one have any insight on this? |
| 02-28-2013 10:13 AM | |
| Sluice Box Hero |
ok, talked to JZW. engine needs speed signal for timing and all the good stuff. can anyone tell me which pin is used for the speed signal. im seein pin 39 as speed signal from the dash. is this the same signal the dash is getting from the abs? or is this an adjusted signal that the cluster converts over. if its the same signal then im good to go, if not, oh no. thanks for the help so far. |
| 02-28-2013 09:37 AM | |
| Sluice Box Hero | why will i need a speed signal? no abs, no speedometer, no torque limiting. what would the ecu use the speed signal for? |
| 02-28-2013 08:13 AM | |
| jdwertz | you will need a speed signal |
| 02-28-2013 07:59 AM | |
| Sluice Box Hero | i have them. what would they have? just looking for someone whos put a b204 in something besides a saab or astra. basically ill run a push button start, and all aftermarket gauges so i dont need anything other than the engine harness. |
| 02-27-2013 08:46 PM | |
| comtrang | Check the T5Suite manuals. It might have it. I'd look myself but I'm not at a computer. |
| 02-27-2013 07:41 PM | |
| Sluice Box Hero |
T5 Stand Alone Harness ok. i dont spend a lot of time over here, but i love saabs. anyway, lately ive been putting together some information for a future B204 transaxle 4x4 buggy i have in the works. toughest part i think is going to be the wiring. ive been looking over some wiring harness diagrams, now, these were 9000 diagrams, and ive heard some of the colors are different, but they do the same jobs. i was wondering if any of you have done a stand alone harness for one of these engines before. currently i have a pinout written down and a modified harness diagram, if anyone could take a look over these and tell me if im missing anything that would be awesome.  Uploaded with ImageShack.us pinout: 1 12v HOT AT ALL TIMES 2 APC vALVE 3 FUEL INJECTOR #1 4 FUEL INJECTOR #2 5 FUEL INJECTOR #3 6 FUEL INJECTOR #4 7 NOT USED 8 NOT USED 9 DIC PIN #2 10 DIC PIN #3 11 DIC PIN #4 12 DIC PIN #5 13 REMOVED 14 REMOVED 15 REMOVED 16 NOT USED 17 DIC PIN #8 18 DIC PIN #9 19 NOT USED 20 NOT USED 21 REMOVED 22 MAP SENSOR 23 02 SENSOR 24 GROUND 25 GROUND 26 APC VALVE 27 REMOVED 28 NOT USED 29 NOT USED 30 NOT USED 31 MAIN RELAY 32 REMOVED 33 DATA LINK CONNECTOR 34 REMOVED 35 NOT USED 36 REMOVED 37 REMOVED 38 COOLANT FAN RELAY 39 REMOVED 40 NOT USED 41 O2 SENSOR 42 TPS 43 MAP 44 DIC PIN #7 45 TPS 46 ENGINE TEMP SENSOR 47 GROUND 48 12V HOT AT ALL TIMES 49 ENGINE IDLE SPEED CONTROL VALVE 50 O2 SENSOR 51 NOT USED 52 REMOVED 53 NOT USED 54 REMOVED 55 REMOVED 56 FUEL PUMP RELAY 57 NOT USED 58 RPM SIGNAL OUT 59 REMOVED 60 REMOVED 61 NOT USED 62 SFI TEST SOCKET 63 SFI TEST SOCKET 64 NOT USED 65 SFI TEST SOCKET 66 GROUND 67 GROUND 68 INTAKE AIR TEMP 69 NOT USED 70 NOT USED |
