poor perfomance in my car ( golf 4 , 2000 model)
i have changed the fuel pump , serviced my car, checked the injectors, air flow meter
and the car is still not performing well
What are the symptoms that you're trying to cure?
poor performance and the engine is shaking also
Test the ignition coil, probably shorting out.
Check all of your vacuum lines for leaks. Take a water bottle and mist your plug wires and coil packs. Listen for snapping sounds. (Works better at night) Have you cleaned your throttle body and Idle Air Control with throttle body cleaner? There is cleaner for your Mass Air Flow sensor also. I would also change out your Engine Coolant Temp sensor. If bad, it will either make the car run too rich with fuel or too lean. You can pull a couple of spark plugs and see if they are black with carbon. If they are, that is a good sign that your Engine Coolant Temp sensor is bad. Try those things and see if you notice a difference. If not post back.
When I plug out my air flow is running speed so I want to known that is good to drive it with unplug air flow plug from air filter
Talk to me motse
Which string rack oil must I use eish I have replaced it twice a year and the say is unfixsable
Looking for a Used Golf in your area?
CarGurus has 2,784 nationwide Golf listings starting at $1,995.
Search Volkswagen Golf Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Volkswagen Golf Experts