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Thread: DaSaabGuy's C900 airflow build Reply to Thread
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Topic Review (Newest First)
05-01-2019 03:30 AM
tuner4life Yay! Looks great! Glad to see you enjoying it. Doesn't matter how long it takes, it's worth it in the end.
04-30-2019 07:23 PM
dasaabguy Thanks for the kind words. It's only taken 10 years of tinkering and figuring out these c900's.
04-30-2019 08:09 AM
Daven WOW. Your car looks awesome! Doesn't get better than that. Truly one of a kind.
04-28-2019 07:25 PM
dasaabguy Frankensaab fresh pics!
04-17-2019 02:51 PM
dasaabguy Annual update!

More documentation.... A/C delete complete, car probably weighs 1000 lbs less😁.

After replacing the steering rack the car would no longer engage 5th gear. Turned out all it needed was a shifter sleeve collar adjustment (about a 2mm adjustment) and 5the gear is back and all other gears seem a bit smoother.

Oh a couple pages back I had mentioned I got some eBay poly rear torque arm bushings. Stay away they are junk. I've been finding pieces of the poly bushings in my driveway probably breaking off when I jack up the car and suspension flex's.

Took the car out to get some groceries the other day and my sweet exhaust note changed on me. Turned out the bolts from bolt on cat had backed themselves out and I developed an exhaust leak. Ordered a set of aluminun flange gaskets and should have it fixed in no time.

I have also started tackling the dash fascia mounting tab fix and will be relocating my gauges from the pillar to where the factory stereo goes.

Lastly, I am still looking for a replacement front airflow flare Ugh!
12-14-2018 09:30 PM
dasaabguy
Quote:
Originally Posted by dasaabguy View Post
Dug a little deeper and got some more info on the brown wire. The brown wire is coming from the wiper relay. There is a thick brown wire and a smaller gauge brown wire coming from the same spot off the wiper relay. The the larger brown wire goes to the wiper stalk.
Posting this up for documentation purposes and maybe it will help someone out in the future. A 1987 900 turbo conv landed in one of my local boneyards recently and I was able to confirm the brown and orange wires mentioned above were hanging disconnected. This reassured me that they are not needed ( in CA atleast).

I'm now working on AC delete.
10-12-2018 06:48 PM
dasaabguy Dug a little deeper and got some more info on the brown wire. The brown wire is coming from the wiper relay. There is a thick brown wire and a smaller gauge brown wire coming from the same spot off the wiper relay. The the larger brown wire goes to the wiper stalk.
10-11-2018 06:59 PM
dasaabguy Thx Cark!

I've been doing some wire tracing under the dash and need some help. Does anyone know where the orange wire coming from the plug behind the instrument cluster ( fuel gauge side) connects? I have a mystery brown wire that meets up with the orange wire. Both have female terminals on the ends.

The repair manual has the following wiring schematic diagram that shows 47L but it fails to tell what it is for. I think this is whats causing my gauges to go crazy.Does anyone know what 47L (EXH) is? I'm thinking it's an exhaust/ cat converter wire and I may not even need it connected.

The pic shows a orange wire coming from 47L routing to 86 then to 152B (29pin bulkhead at main fuse panel) then to 22A (main fuse panel left wheel housing). Can anyone tell me in first grader terms what all that means?
10-04-2018 12:30 PM
Cark ^that there is a nice touch! Can't really pull that off with a DI cassette
10-04-2018 08:55 AM
dasaabguy Hey Burns glad to see your still out there. I do have a couple updates. Had the steering rack and another secondary fuel pump replaced. The car is now registered as of last week.

The same day I got it registered the clutch pedal decided to go to the floor after about an hour of driving. It's now up on jack stands I don't see any leaks and the clutch feels good after sitting for a bit. I'm thinking there's air in the system or the fluid is so old that once the clutch system heats up the fluid breaks down causing the pedal to get soft.
09-28-2018 10:09 AM
BurnsSide42 Update this thread - that car looks sweet!
10-27-2017 09:19 AM
dasaabguy After the 89 900 turbo throttle body swap all vacuum lines now appear to line up correctly. I also swapped in a different MAF. Will try to fire her up today.
On a separate note, I've been busy refinishing a spare wood wheel I had in the garage. I sanded both the wheel and shift knob and stained a "gunstock" color and to my surprise they came out pretty good and the best part is I got the horn working.
10-16-2017 02:32 PM
dasaabguy The oem Bosch AMM tested good,
filament glowed when car was shut off.

I have a spare AMM so I will throw that in and see what happens.

Quote:
Originally Posted by DrewP View Post
Even when I had a 3.0 BAR fpr in my car it did not visibly foul up plugs. Is your AMM an OEM Bosch meter, or an aftermarket one? Is the filament broken?

There's a procedure to check it in the Bentley manual (and the factory LH service manual). LH2.2 has an adjustment pot on the AMM as well, it may be way out of whack. I'd check that too.
10-09-2017 08:46 AM
DrewP Even when I had a 3.0 BAR fpr in my car it did not visibly foul up plugs. Is your AMM an OEM Bosch meter, or an aftermarket one? Is the filament broken?

There's a procedure to check it in the Bentley manual (and the factory LH service manual). LH2.2 has an adjustment pot on the AMM as well, it may be way out of whack. I'd check that too.
10-05-2017 02:02 PM
Raul
Quote:
Originally Posted by dasaabguy View Post
For any c900 experts still out there. What does it mean when I blip the throttle and I get immediate stumble / hesitation at the intake manifold? It happens whether the car is cold or hot. I've also experienced on some occasions the car shutting off when coming to a stop when hot.
I noticed this issue on my '85 (lh2.2) when I went with 2.1L head/intake/cams. It may explain why Saab went with asymmetrical ports on lh2.2/2.4 and non asymmetrical with lh2.4.2
10-01-2017 03:32 PM
dasaabguy Ok folks installed all new intake manifold grommets, charcoal canister, charcoal canister plastic vacuum line. When installing the plastic line I noticed I did not have the correct intake manifold vacuum fitting to accept the plastic line. This was due to the 87 900 Throttle body not having the correct port for the IAC hose. I found an 89 900 turbo Throttle body and the correct vacuum fitting that I'm going to swap in. Looks like I will need to swap over the throttle cable brackets and I will need to tap one of the bracket holes. Everything should connect correctly when it's all done.


Seperate note, I'm putting in yet another set of BCP7ES plugs gapped at .028 due to carbon fouling. Will swapping the 3.0fpr for a 2.5fpr fix the plug fouling issue?
09-11-2017 11:33 AM
dasaabguy Good points Drew! I just installed all new vacuum lines and ordered new IM grommets. I actually have the throttle body and AMM out at the moment for another cleaning.
09-11-2017 11:16 AM
DrewP Vacuum leaks will cause that. Sometimes the bushings in the intake manifold will be loose enough that sharp spikes in pressure will let them leak and then seal back up. Also if the check valve going to the PCV nipple on the cam cover is missing or installed backwards.

Start pinching off vacuum lines while you blip the throttle and see if you can isolate it.
09-11-2017 10:54 AM
jk88
Quote:
Originally Posted by dasaabguy View Post
OMG this site is alive. Lol

Jeff good seeing you too! I was hoping to have the car at SOC and Socaleuro but it didn't work out.
I think we're mostly all still here, posting less and lurking more. Everybody got a little older and lot busier, all of the sudden...
09-11-2017 10:19 AM
dasaabguy For any c900 experts still out there. What does it mean when I blip the throttle and I get immediate stumble / hesitation at the intake manifold? It happens whether the car is cold or hot. I've also experienced on some occasions the car shutting off when coming to a stop when hot.
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