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stalling issues agian, any suggestions
So the stalling has begun agian. car is a 1991 190E 2.6.what Ive done and replaced:
-new ovp -reman mas from programa -Checked fuel pressures-system pressure @ 5.4 bar -lower chamber pressure at 5 bar -checked for leaks-none -checked wiring to eha, micro switch, air flow sensor -checked air flow sensor -holds pressure -checked pcm and wiring to the eha, microswitch and air flow sensor -checked for vacuum leaks -checked fuel pumps -check coolant temp sensor -checked eha Also the problem only happens when the reaches operating temp or near operating temperature and when it happens i hear a loud rumbling in the gas tank like there is air in system. it just started doing but for a few weeks the car ran great. seems to me if it was the crankshaft postion sensor it would be doing it when the engine is cold as well. I worked on it today and found a few red flags. first the fuel pressure didnt change when i performed the decel fuel shut off fuel pressure test and the acceleration enrichment test. The fuel pressure should change when i do this which narrows the problem down to the EHA, control unit, microswitch and TD signal and air flow sensor plate. Out of those items mentioned i elimnated the pcm, microswitch,air flow sensor plate. Any other ideas as to why its stalling only when the engine is warm and why I am hearing rumbling in the gas tank? Ive done what the MB TSB has you do when you have this issue.
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1986 300SDL, 211K,Dealership serviced its whole life 1991 190E 2.6(120k) 1983 300D(300k) 1977 300D(211k) Last edited by Oracle12345; 04-16-2009 at 03:07 PM. |
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