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Why does my 1997 740il when you press on the gas pedal the check engine light comes on and the car will not exceed about 3200 rpm but revs higher in park you're thinking o2 sensor imput welcome.?
Wiki User
∙ 13y ago
1. [possible mass air flow sensor]
2. BMW has a feature that shuts the engine down to 3rd gear idle and will not allow hard acceleration to get you to a safer destination rather than shut off completely. A code did not appear for my alternator issue but the O2 sensors will register as a fuel mixture problem rich or lean. If there is contamination of any kind from the air box, mass airflow sensor to the O2 sensors the car will not manage fuel properly resulting in idle and emission problems at the tailpipe and the gas pump. Change the air filter and clean from the air box down to the intake with MAF cleaner. Pull the O2 sensors and clean them with it also. It will make a big difference speaking from experience. A $10 spray can of MAF cleaner can improve drive-ability and fuel economy for vehicles with a few years of service or high miles. Fuel injected vehicles or any vehicle with O2 sensors should never use oil impregnated/contaminated air filters. BMW sensors are not designed for oiled air filters.
Wiki User
∙ 13y ago
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Why does my 1989 bmw 750il when you press on the throttle pedal the and the car will not exceed about 1500 rpm but revs higher in park?
Your engine is in what is called limp mode. This is to prevent damage to the engine as something is seriously wrong. Take it to the nearest BMW dealer immediately.
How do you spell execed?
EXCEED : to surpass, to go farther or higher than
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