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In Reply to: Warm start problems posted by Rick Robinson on March 28, 1999 at 02:59:54:
I believe I might have the same problem but haven't really thought about it much, seems normal. I think when the car is fairly warm, I crank it for a bit, don't think it has started and let go to try again, sometimes it catches and I look at the tach, its at like 100 rpms and slowly climbs up to idle without giving it gas. Only happens on occasion, seems a bit strange to me as well. I have a '92 535i.
: Here is the symptom. When the car ('89 535i auto) is cold (and I mean COLD, -20C or so), the car starts like a dream. Under warmer conditions, the car cranks for upto five full seconds or more before slowly catching. It then stumbles along for a few more seconds and then evens out and runs normally. Performance when driving seems to be quite normal.
: To date, here are the things that have been done or tried:
: - Injectors have been pulled out and tested - ok
: - Fuel system pressure tested - ok (but with some inconsistancies
: - Cracked boot between throttle body and intake replaced
: - O2 sensor replaced (it was pretty bad when removed)
: - Double dose of injector/fuel system cleaner used
: I am losing my patience with this, the only angle I haven't tried yet is the thermo-time switch and related cold start injector. Any other ideas? Any help is appreciated.
: Rick
: (take out the "REMOVE" in email address)
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