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#1
09-18-2009, 09:06 PM
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Fault Code: P1619 (Electrical)
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Last edited by BGM; 09-18-2009 at 11:01 PM. 
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#2
09-18-2009, 09:50 PM
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From the google research on P1619 it shows to be the map cooling, thermostat. This fault doesn't usually cause a check engine light so it was probably stored in there before and unrelated.
The thermostats on BMWs have the normal operational characteristics, like they open when hot, close when cool etc. but they also have a small capsule of wax that is heated by the DME to offer a greater level of control over the thermostat for more consistant temperatures etc. without having a full electrically controlled thermostat. When the heated wax part is no longer working it throws a fault like the one you have, but the thermostat usually still works as a regular piece, except for the few cases where they stick open, or rare cased they stick closed. Either way, the cure for that fault is to replace the thermostat. But that is unrelated to the tach bouncing, check engine light, almost stall situation. When the check engine light came on was it steady or flashing?
__________________
"When you do things right, people won't be sure you've done anything at all" (Bender, futurama) You make something idiotproof, they'll make a better idiot You think professional is expensive, just wait until you pay for amateur. Never let your sense of morals prevent you from doing what is right. Examine what is said, not who speaks. X5 pics RIP 4.6is..... 2003 4.6is 
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#3
09-18-2009, 10:14 PM
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W- that's some interesting info. No the Check Engine light was steady. I just had the water pump and thermostat replaced when I had my drive belts replaced a few months ago at the indy garage I go to (they recommended do all at the same time). So, can it be something else or just a weird incident ?
Last edited by BGM; 09-19-2009 at 12:09 AM.
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#4
09-18-2009, 11:05 PM
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The thermostat fault may just be a memory code from the old one then...
Just clear the code and if it happens again maybe the fault will trigger in memory.
__________________
"When you do things right, people won't be sure you've done anything at all" (Bender, futurama) You make something idiotproof, they'll make a better idiot You think professional is expensive, just wait until you pay for amateur. Never let your sense of morals prevent you from doing what is right. Examine what is said, not who speaks. X5 pics RIP 4.6is..... 2003 4.6is
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#5
09-21-2009, 03:37 PM
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Weasel--all has been good no issues with the Check Engine light but now I have the DSC, ABS and Brakes warning lights that come on. No issues with the brakes or anything everything is normal from what I can tell. Is it possible it's an ABS Sensor or something ?
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#6
09-21-2009, 04:05 PM
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check the wheel speed sensors.
Quote:
my 2 cents... 
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#7
09-21-2009, 04:10 PM
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Could be anything... I have a 2001 3.0I too and like you I had the engine going to stall (while idling), the DSC, ABS and brake warning lights coming on, then the SES light and even the limp mode. Connected my code reader (Peake), it displayed several codes, mostly related to misfires and 02 sensors misreading, and also revealing several times a problem with the throttle body. The problem occured many times during the following days, while I was waiting for the delivery of the new throttle body (and MAF and O2 sensors while I'm at it).
It was interesting to notice that the problem occured less and less often, and when the SES light went on, the scanner just displayed codes related to misfires, no more throttle body failure... Then, just when the parts arrived in my mail box, problem completely disappeared! The engine now idles very well, runs smooth, no more warning light, running fine just like before... So what happened? Maybe some bad electrical connexion, some dust or water around a sensor or in the idle valve, or in the throttle body... Just to tell you that the warning lights seen on the cluster or the codes read by the scanners don't always tell you exactly what is the real cause unless you have at home the very expensive BMW diagnose tool...
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#8
09-24-2009, 01:51 PM
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Update: now the DSC, ABS and Brakes are not lit at all. This has been for the past few days. I did notice a few days ago that the front tires were down to 25 PSI so I put them back to 32 PSI. I can't imagine that was enough to throw off ABS sensors or whatever but maybe so. Temps have only been in the 70s here the past days maybe that was it or I live in the Bermuda Triangle where instrument panel lights go crazy.
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