Engine Performance problem
1999 Honda Civic 4 cyl Front Wheel Drive Automatic 150000 miles
Trying to diagnose my sons "toy". Trouble code is 172, system running rich trouble code and his mileage sucks. He took it to a shop and they found a vaccum leak and repaired that and cancelled code. It came right back. They said his injectors may need cleaned. The car lags bad on acceleration and gets bad mileage. A cold air intake was installed on this and I am wondering if the Mass airflow has been removed and may be causing it? There is a small probe / sensor that is stuck in the rubber coupler between the intake pipe and throttle body through a small slit in the rubber coupler and it is a 2 wire probe. Car runs smooth but is defintely has no power and is running way too rich. Any suggestions?
have the same problem?
Wednesday, June 3rd, 2009 AT 1:49 PM