The complete automotive resource for buyers, sellers, and owners like you.
Car, Truck and SUV Forums at Roadfly
+ Bentley Forums
+ BMW Forums
+ Cadillac Forums
+ Chevrolet Forums
+ Ferrari Forums
+ Jaguar Forums
+ Lamborghini Forums
+ Lotus Forums
+ Mercedes-Benz Forums
+ Maserati Forums
+ MINI Forums
+ Porsche Forums
+ General Discussion
+ Marketplace Forums
85-318i Cold Start Idle Problem - O2 Sensor ? (archive)
[ Follow Ups ] [ 3-series (E30) Message Board ] [ Msg. Board FAQ ]
Posted by Wolfgang Klinger on June 17, 2000 at 19:51:30:

Recent problem: when cold (just above blue line or below), car will start, but then not idle and stall. I can rev the engine to 1500 rpm with accelerator until she warms up and then will idle all right. On occassion, when i stop for gas, car wants to stall after starting when warm following fill-up. Seems to start ok on the second try. Car otherwise has plenty of power and gets good mileage (31 highway on 93 octane).
Have replaced all vacuum lines. Test with pulling oil dip stick indicates no leakage. Have checked and cleaned the idle air valve (works right), also getting proper amperage out of the idle control unit to the valve. Have also checked the temp sensor and the temperature switch. Both ok according to Bentley service manual specificationss.
Car has not had new O2 sensor (current miles: 170k). Have scheduled at dealer for replacement. Other ideas ? Cold start injector problem ? Fuel pressure regulator ? Bad gasoline (RFG just introduced to New Engaland)?
Ideas ? Suggestions ?
Thanks for your help,
Wolfgang

Follow Ups:


[ Follow Ups ] [ 3-series (E30) Message Board ] [ Msg. Board FAQ ]
Questions, comments, or problems, please visit the Roadfly help desk.
Roadfly.com Logo © 1997 - 2008 Jump Internet Inc. All rights reserved.