idle problems, stalling - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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idle problems, stalling
Posted by Lowell (more from Lowell) on Sat, 24 May 2003 06:18:46
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I purchased a 99 9-3 with the 200hp motor, SE, 5-door with 75k miles,5sp. After driving at highway speeds, idle was unsteady, then rose to 1600 rpm, dropped to 600, then tried to recoup to 1000, then stalled. Stalls sometimes at idle without the rise and fall, with climate control on or off. I replaced the $48 fuel filter, installed the expensive ngk's ($12 ea) and poured 3m injector cleaner into a full tank of gas. Use hi-test Mobil gas, changed oil to Saab blend with new filter. Could this be the oxygen sensors (how many are there and what do they cost?) or some type of air intake valve malfunction? Anybody experience this? No signal of any problems in the computer, and have not taken it to a dealer yet. Runs fine above idle. Very frustrating. Thanks in advance.
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