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General Forums => Air Speed Lounge => Topic started by: epic3 on October 05, 2007, 10:06:12 AM

Title: Bmw Savvy Guys Here?
Post by: epic3 on October 05, 2007, 10:06:12 AM

anyone here into Bimmers?
I got a 90 535i with a problem
It wont start it cranks gets the odd fart out but wont start. Befor this it was a tough start it seemed to be firin off the wrong cylinder then it would catch and run great. While drivin last week it just died and now all I get are farts sometimes.
 I was suggested the timing thingy below the dissy as the dissy aint adjustable but I dont know what this timing thingy is called Crank position sensor maybe?
 And wheres a good place for parts I'm hopin not the dealer

Title: Bmw Savvy Guys Here?
Post by: silas on October 05, 2007, 11:06:59 AM

check for fuel delivery...

then check for spark...

Title: Bmw Savvy Guys Here?
Post by: egspot on October 05, 2007, 11:07:37 AM

Kirin may know some stuff about BMWs

Title: Bmw Savvy Guys Here?
Post by: epic3 on October 05, 2007, 03:46:50 PM

theres spark and fuel but its backfiring out the throttle body
it looks and sounds like the ignition timing is way to advanced but ya cant just rotate the dizzy to adjust it.
 There is a crank position sensor and when I unplug it I get no spark  

Title: Bmw Savvy Guys Here?
Post by: kirin on October 05, 2007, 08:54:02 PM

Sounds almost like a reference sensor problem. Got a bentley?

Title: Bmw Savvy Guys Here?
Post by: dannyboy on October 05, 2007, 11:18:46 PM

stop making up words kirin :D  

Title: Bmw Savvy Guys Here?
Post by: josh on October 05, 2007, 11:45:14 PM

whole lota fartin'?, lay off the burritos :P  

Title: Bmw Savvy Guys Here?
Post by: epic3 on October 06, 2007, 01:15:46 AM

cant lay off them the woman would leave me
I keep her warm at night with my green house gasses
and no bently tryin to fix what I'm sure is obvious without spendin money cus it was just runnin but nowe aint

Title: Bmw Savvy Guys Here?
Post by: kirin on October 07, 2007, 04:05:53 AM

Honestly buy the manual. You can't troubleshoot if you don't know where to start.

Title: Bmw Savvy Guys Here?
Post by: 67VERT on October 07, 2007, 08:24:32 AM

remove dist. cap check for carbon lines if so replace both cap and rotor--check both crank and TDC position sensors should 800-1000 ohms.also check for A/C voltage if no voltage pin came off of flywheel-- check fuel pres. if memory serves correct should be 30-34 psi?--if all is good check your cam timming. get a manual for this.  good luck.
p/s be careful with the back fire threw the intake it may bend the sensor plate(not good)

Title: Bmw Savvy Guys Here?
Post by: kirin on October 07, 2007, 12:22:13 PM

Back firing won't do  anything good to your Mass airflow sensor.