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10

There are two possible explanations: If the fuel cap does not form a good enough seal, the fuel injection system may experience problems with drawing fuel from the tank. On newer cars many of them have a fuel cap sensor to detect if the cap is not screwed in. This is related to emissions, although i am uncertain how. I know when I get my yearly emissions ...


7

The EPA regulations require that the fuel tank is a sealed system so that no vapors escape. There is an entire system (Evaporative Purge) dedicated to that task. EPA regulations also require that the ECM (Engine Control Module) check they system for leak. When the right conditions are met IE fuel level between 1/3 and 1/2 tank, outside temp 50 - 90 etc. the ...


4

I would find someone else to check out and fix the airbag, while this guy might be great at fixing other things on your car I wouldn't let him touch the airbags. if needed it would deploy Possibly depending on what the code is however it might not. He said that to turn the light off would require removing a few electrical components This ...


3

I am assuming that you are in NC based on your profile. You can obtain a wavier if you spend at least $200 I will list the rest of the requirements at the end of this post. I am leery that the catalytic converter is bad, the ECM (the cars computer) uses the post cat O2 sensor to determine cat efficiency and if it's bad as they said it could cause the ...


3

DO NOT PAY SOMEONE TO RESET THE BLINKING AIR BAG LIGHT!!!!! Open the driver’s door. Note the rubber covered button located low on the B pillar, a button which is pressed by the door when the door is closed. This is the Driver’s Door Switch (DDS). Turn the ignition from OFF to ON. Press the DDS at least 5 times within 7 seconds after turning the ignition ...


3

Though I may not be correct, have you tried opening your hood and using a spray bottle of water on your spark plug wires? Lightly mist around where the wires connect on both ends of the wires, and maybe a few squirts around on the wires themselves. If the vehicle stutters, it may just be that the wires need to be replaced...


2

The first step is to pull the ABS codes. That will give us a starting point for trouble shooting. This model supports flash codes, you will need to jump across terminal A and H of the ALDL connector (under the drivers side of the dash). It may take about 30 seconds before the ABS light starts flashing codes. Count the flashes to get the code, they ...


1

The gas or petrol cap is a good idea. Removing the coil pack(s), on cylinder 1, is another one. Sometimes you can easily find an electrical connector - say the O2 sensor - and disconnect it. This, of course, depends on what connectors are easily reachable. On a Hyundai Coupe, the O2 sensor is easily accessible.


1

I had a similar problem on 2 vehicles, a 03 mustang and a 99 bonneville. When the car would come to a stop light the engine would idle too low and stall out. The problem (in both cases) was the mass air flow sensor. Its a piece of electronics that determines the amount of air to let in to the engine from the throttle based on inputs. You could test it by ...


1

You didn't mention which engine is in your Jetta, but the Mk IV VWs, especially the VR6 engine, are known to have brittle ignition coil housings that crack and admit water, which leads to misfires. After the engine has run for a while, it burns off this moisture and it starts running fine again. Some VWs were subject to a recall to fix this issue. Based on ...


1

First step, I would take the car to a less annoying shop to ask them to read the OBD code - I would assume that there is one to read if the CEL has been on or flashing. Almost any shop will read the code for you at for a nominal / free charge. If you would like to know the information on your own, the code readers are common items on Amazon. I would get ...


1

These two links give some diagnostic information on catalytic converters and O2 sensors: Diagnosing 02 sensor Catalytic converter causing performance problems If the 02 sensor is working properly and thus properly condemning the catalytic converter, one option is to have an exhaust shop replace just the converter. The factory exhaust pipe with the ...



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