96 Saab 900 SE Turbo

1996 SAAB 900
172,000 MILES • 4 CYL • 2WD • MANUAL
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PORTEOUS
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96 Saab 900 SE Turbo:Car was scanned and code 1170 came up.Car has rough idle and getting worse.The Auto Repair Shop really couldn't pinpoint the probelm.It has new DI Cassette,spark plugs,throttle body cleaned,value cover gasket.Could this be O2 sensors or coolant sensor causing this?
Jun 28, 2011 at 3:30 PM
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DOCFIXIT
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Fault in variable intake manifold circuit is open
Jun 28, 2011 at 4:21 PM
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PORTEOUS
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Is this on the manifold itself?
Jun 28, 2011 at 4:49 PM
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DOCFIXIT
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Yes motor operates butterflys to change intake from log runner to shorter run
Jun 28, 2011 at 6:01 PM
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MNTHNY4
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did u check for any vacuum leaks in intake system ,exhaust system before o2s sensor ,also check your fuel pressure & your evap system purge valve function .good luck.
Jun 30, 2011 at 2:51 PM
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DEREKOLIVEIRA
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to see if is the lambda you have to go and turn on the ISAT for reading values ??and you can spray quick start taking a vacum hose with engine idle, if the value of lambda QUICKLY rise to a rich mixture so the sensor is fine!In my opinion is a intake leak
Jul 3, 2011 at 8:22 PM
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DOCFIXIT
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What happened?
Aug 11, 2011 at 3:59 PM