Re: Issues: - Saab 900 Bulletin Board - Saabnet.com
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Re: Issues:
Posted by aalto (more from aalto) on Wed, 31 Jan 2007 23:17:02
In Reply to: Issues:, Scalera, Wed, 31 Jan 2007 19:34:31
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Well you have certainly covered your bases with that list of replacements. I can understand why your suspicions had migrated to the injectors and ecu. About the only thing that you haven't replaced but certainly would have been at the top of my list would be the ignition control unit on the drivers side fender.
For the record, the quickest way to check the Ignition control unit is to replace with another unit from any c900 (a 2 minute operation). However it is also possible to check the function by either following the tests in the Bentley manual or putting a timing light on the car and carefully watching the flashes. The later test is tricky because initially it may look like everything is OK. However, the bad ICU will cause a slightly erratic flashing pattern that gets worse as you (try to) accelerate the engine. The flashes will still be there they just won't be steady and evenly spaced. Once you are able to compare with a properly functioning engine the difference becomes clear.
posted by 24.82.242...
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