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Help needed diagnosing- will only idle after warm-up 1991 240 200

posted by  keithostertag on  Tue Mar 13 14:17 CST 2012
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last visit: Tue Jun 17 15:10 CST 2014
[RELATED]

Hi Tony-

I disconnected the hose that is attached to the rear of the fuel pressure regulator, which AFAIK is the fuel return, and connected a hose from there into a container. In 30 sec I only got 600ml, I should have gotten over 1000ml.

BUT- New Development! I tried starting the car awhile ago and it wouldn't run worth crap. I opened the hood and found one of the hoses that attach to the breather hose had sheared off the breather hose body! FCPGroton says they will replace it under warranty. So maybe there was a hairline crack in it that was causing the problem.

BUT I still want to diagnose/fix the fuel flow problem, which is unrelated.



Thanks for your help!

Keith Ostertag
--
1991 240 Sedan B230F LH3.1 M47 300K miles






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