Is there a check engine light on, with that significant of drop you should have some indicator. By running hard, what do you mean?
July, 28, 2009 AT 11:07 PM
Yes my service engine light is on, the guy at the hop said it was bc my airfilter senor was unplugged but when he plugged it back in my car made this weird noise and souned like it was going to die. He had a hard time putting the cover on the air intake valve and im wondering if that is the problem.
July, 29, 2009 AT 12:22 AM
It is common for the vehicle to change running at the point the mass airflow sensor is reconnected, because it goes from default value, back to calculating. By air intake valve, do you mean the odd shaped cover that makes up the top of the air filter housing. That could cause a problem since it is after the mass airflow sensor. If you have a leak after, that would be an unmetered air leak, and would change fuel calculations with little symptoms noticeable.