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E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki |
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#1
05-21-2019, 12:21 PM
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Need help identifying this
After very heavy rain on Saturday here in Dallas, my car developed a misfire. Found a good amount of rust and water in the coil/spark plug tubes from cylinders 5 & 6. Replaced all plugs and coil packs.
While putting everything back together I found this tucked under the intake runners. Need help finding out what it is, why it's disconnected, and why it was disconnected if on purpose? Clearly has vacuum lines but car is running fine. Thanks
__________________
'02 Trans AM WS6 ---> Weekends
'08 CTS ---> Daily '97 BMW 328i ---> Fun '92 Accord ---> Race 
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#2
05-21-2019, 01:20 PM
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Do you have a functioning SAP system?
I think that is the actuator for the SAP vacuum control unit. Sent from my iPhone using Tapatalk
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#3
05-22-2019, 12:48 AM
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Quote:
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#4
05-22-2019, 08:43 AM
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I hear the SAP running when I cold start the car (my entire neighborhood can with how loud it is). So the pump is there and still connected. No codes or CEL. Guess its time to remove the entire thing.
__________________
'02 Trans AM WS6 ---> Weekends
'08 CTS ---> Daily '97 BMW 328i ---> Fun '92 Accord ---> Race
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#5
05-22-2019, 12:59 PM
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Reconnect the vacuum control hose…LOL!!
Sent from my iPhone using Tapatalk
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#6
05-22-2019, 01:59 PM
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Quote:
__________________
'02 Trans AM WS6 ---> Weekends
'08 CTS ---> Daily '97 BMW 328i ---> Fun '92 Accord ---> Race
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#7
05-22-2019, 02:07 PM
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If you remove the secondary air pump and associated parts you'll need to install a SAP emulator, or you'll get a constant error code/CEL.
__________________
Quotes to live by:
guessing gets expensive...drivinfaster nothing is more expensive than a cheap BMW...c4harpe13 buying a ratty example (of a BMW) is a parasitic relationship.(and you ain't the mosquito) 7pilot Ken Kanne, Silverhill, AL, Bimmerfest Site Moderator BMW-CCA #441426 1993 325is M3 clone"Ashlyn"; 1993 325is "Elvira"; 1985 635CSi "Katja"; 1984 633CSi "Sylvia"; 1987 325is "Odette";1995 318is"Bebe "; 1985 325e "Hazel Ann" 
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#8
05-23-2019, 02:44 PM
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The hoses that ran to and from that valve probably rotted and fell away. One end goes to intake, other to vacuum canister.
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