pacman777

hello people! need some advice for a newbie. my 87 s4 blew the heater hose, fixed that, but now has a rough to no idle. also has a good amount of grey to black smoke out the tailpipe like it's too rich but smells like burning fibreglass. wtf

WallyP

Pull the small vacuum line found on each of the fuel pressure dampeners and regulator and check for any trace of fuel in the line. You can rub the open end of the line on your (clean) finger and then sniff for a fuel odor. Replace any unit that is leaking.

pacman777

thanks for the tip wally. i will try that today. i am also going to swap out the crank sensor because that got wet .

SQLGuy

While you're back there, you might want to double-check all the vacuum lines and the connections to the FPR and rear damper, in case a line got broken or knocked loose while you were replacing the hose.

pacman777

thanks SQLGUY. i'll do that too. you never know

pacman777

a big thanks to SQLGUY!!! it was a vacuum line of at the throttle body. cheers

pacman777

also there was a wire broken at the harness end of the crank sensor