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Old 03-17-2010, 02:44 PM   #1
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Fuel Injectors...Saturated or Peak & Hold?

--------------------------------------------------------------------------------

...which type comes stock on a '99 9-3 2.0?

i'm chasing a bad idle, horrible fuel mileage and no power on acceleration...

i have spare BMW and Mitsu Eclipse Turbo injectors and would like to install these if applicable!


Thanks !!
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Old 03-18-2010, 06:00 PM   #2
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anyone ? ...
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Old 03-18-2010, 06:09 PM   #3
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I doubt it's injectors. do you have a check engine light on?
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Old 03-18-2010, 06:10 PM   #4
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i bet its not your injectors



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Old 03-18-2010, 07:15 PM   #5
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It was my injectors. Or rather, injector three. I also had a lean condition CEL a few times.
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Old 03-18-2010, 08:08 PM   #6
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yes, i have a check engine light... Generic OBDII says engine misfire...
i have very low power and a bad miss..

so far, i've swapped plugs and found # 1 to be not as 'burnt' as the others.. i replaced the red DIC with a new generic unit from Eeuroparts back in July last year...i have no known good DIC for a test
in the meantime, I've cleaned the IAC and Evap purge valve ..done a fresh oil change with Seafoam in both oil/gas..
...i haven't run the seafoam thru the vacuum line ..
the car runs bit smoother, but the miss and low power conditions are still present

i'm waiting on a compression check to determine a bit more...

if it comes down the injectors.. was thinking of swapping in these that I have .. but just needed to verify the type of injectors that are currently in the car ..
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Old 03-18-2010, 08:52 PM   #7
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I dunno if this helps, but screenshot from the WIS:
Attached Images
File Type: png Screen shot 2010-03-19 at 12.50.40 AM.png (14.9 KB, 22 views)
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Old 03-19-2010, 02:16 AM   #8
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you have a bunch of other options before injectors.

it is very difficult to go by the plugs since the DI has a burn off cleaning cycle.

ect sensor (x2?)
DI
FPR
MAF
throttle body
possible flaky cps

off the top of my head those can all cause a missfire and rich conditon.



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Old 03-19-2010, 03:36 PM   #9
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Old 03-19-2010, 04:01 PM   #10
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IIRC, Saabs are high impedance. Don't quote me on that.
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Old 03-19-2010, 04:24 PM   #11
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Quote:
Originally Posted by NeedForSwede View Post
IIRC, Saabs are high impedance. Don't quote me on that.
correct. saturated/high impedence
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Last edited by daveship; 03-19-2010 at 04:34 PM.
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Old 03-19-2010, 05:08 PM   #12
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not to hijack, but has anyone ever swapped over to low impedance on any projects on their saabs? I know they have their advantages compared to high impedance. Just curious.
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Old 03-19-2010, 11:17 PM   #13
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i think the risks out weight the minor advantages, in terms of direct swap... if needed to then you would need to make sure the current stayed the same
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Old 03-22-2010, 12:21 PM   #14
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Ya, it would be a PITA for sure...and probably pointless since trionic is based on high impedance. I just thought I'd ask for shits and giggles.
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