Thread: AJ-Question
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Old 02-20-08, 03:29 PM
rhw1 rhw1 is offline
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Cadillac(s): 99 SLS
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Re: AJ-Question

Quote:
Originally Posted by rhw1 View Post
Would like your comment on problem below as I have read your authoratative posts on this issue.
99SLS with 72K with decel stall
Throttle body and IAC passages have been cleaned; only code is stall/near stall condition(1599).
Problem is intermittent(one or twice per week), but only happens on gradual decel when 800-900 rpm is reached; tach will drop to 400 rpm and usually recover to 1000 and then do the same thing repeatedly. It seems that engine can't run at this 800-900 rpm, but if under a more rapid decel and 700 rpm is reached engine runs fine. When the stall/near stall happens, I feel no missing or stumbling.
Thanks for your help.
I am still having the stalling problem and checked fuel pressure per my post earlier today.