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#1
11-15-2002, 10:27 AM
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400E idle oscillates after shift from D to P
Hello,
I have a new situation now. My car's idle oscillates between 600 rpm to 1300 rpm in a 1 Second cycle right after I shift from D to P, this always happens after I drive the car for half an hour, it has happened twice since last night. If I turn off the engine and start it once again, the idle returns to normal. Before I shift from D to P, I feel I need more brake pressure to stop the car from moving forward. The car is still smooth as silk when driving. I had wiring harness replaced 2 months ago, where should I start the trouble shooting? BTW, I am running the last tank of gas before oil change, so as usual I added a bottle of Pennzoil fuel system cleaner to the tank, I hope it didn't kill my O2 sensor this time. Looks like another busy weekend in the garage  
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99 BMW 540i 6-speed 110K Km 03 SAAB 9-5 wagon 80K Km 92 400E (Sold) 245K km Still missing the days with the Benz, it kept me busy. 
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#2
11-15-2002, 05:50 PM
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Has the throttle "butterfly" been scrubbed?? & the air bleed hole cleaned out??
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MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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Linear Mode
