Question about 2004 Mazda 3
2004 mazda 6 3.0, have acceleration problem. car hesitates at different rpms in all gears. Have changed throttle body,pcv valve and mass air flow sensor. I have an AEM Mazdaspeed intake installed and never had a issue with this mod in 4 years. The check engine light never came on, but I have a code for the VAD sensor the shows up when I get the car scanned. This is due to the fact that I disconnected the sensor as per the instruction when I installed the intake. Do you think I might have a bad coil or poor plugs. I have 80,000 mile on it now, and I know the plugs should be changed around 74,000. please help.
Hi, it might very well be the electronic engine control system that is malfunctioning, among other probable causes. I'm not there in person, but I can help you go through the most probable causes of this accleration-hesitation problem that you have. In fact, here's a very good, handy diagnostic article exactly on your issue, detailing the six most probable causes:
Go through these to definitely solve your problem.
Posted on Jun 01, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
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ENGINE HESITATES WHILE ACCELERATION
LOSS OF ACCELERATION
can be fuel pressure issue or it's the problem with accelerator pedal or its
clogged filters causing there.
are many other possibilities. I suggest you to go through the list of help
links mentioned below, these will help you to confirm where the actual fault
These details will help.
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