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  1. Running rich?

    C900 Workshop
    Hi all. I'm currently restoring my c900 N/A, I am pretty sure it is running rich. The symptoms are that it blows smoke from the tailpipe, and the spark plugs are all black, despite being almost new. The smoke is worse at startup, but continues when at operating temperature. It smells like...
  2. red top fuel injectors 431 and AMM resistor size

    C900 Performance, Mods & Tuning
    I pulled some Bosch 431 injectors from a NG 900 at the wrecking yard. So this post is about figuring out how to make sure the car doesn't run too rich or too lean by modifying the Air Mass Meter with a resistor in the output line (orange wire). I have a Swedish Dynamics modified APC (got it 16...
  3. Wastegate adjustment

    9-5 Performance, Mods & Tuning
    All, Last night i removed the cir clip on my wastegate actuator, and rotated the arm clockwise two full rotations. This is said to have raised the base boost level by .04 bar. driving last night and this morning briefly, i have noticed slightly quicker spool, and more consistent WOT boost...
  4. Stalls shortly after cold start and on acceleration

    9-5 Workshop
    Hi All, I have a problem that I just can't seem to fix and would be very grateful if any one has any ideas as to how to fix this. I have a Saab 9-5 Aero year 2000. When I start the car from cold it idles fine for about 20 seconds. After that the revs go up and down until it finally dies...
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