Question about 2000 Mazda Millenia
When starting my car it will run as smooth as ever until I place it in Drive or Reverse or if I take my foot off the gas the RPMs will fluctuate up and down and idles really rough. The check engine light is blinking. Any suggestions?
Check for vaccume leaks and also you PCV valve. check the hose too. Visually inspect every vaccume hose you can find. Sounds like a leak .
Posted on Nov 10, 2008
This make/model has a chronic problem with EGR clogging. If you have a dashboard indicator showing "check engine" most likely it is a trouble code indicating and EGR (exhaust gas recirculator) valve problem. Symptoms are rough idle, and surging and stalls.
What happens is sediments from the exaust manifold get sucked up into the valve when it opens, then stick in the valve and keep it from closing. When the valve is open when it should be closed, the engine runs very rough.
I removed my egr and then dislodged the sediment (pea-sized debris) and then re-installed the valve. Three days later, the same "check engine" and same rough idle. I must have did this at least three or four more times.
What I found that gave me a permanent solution was an aftermarket filter gasket that keeps debris from clogging. I don't remember the name of the product, but a search for "EGR filter gasket" may lead you to the product.
Install the gasket between the EGR and the exhaust manifold and you should be good to go. Note: on 1995 and newer models, disconnecting the EGR from the wiring harness (common on R&R) may require the computer to be reprogramed.
Posted on Dec 24, 2008
change plug and wire if its been a while most cars have 90000 miles platinum plugs in them.but the wires wear before plugs.so change plugs and wires.+clean fuel injectors .change fuel filter and air filter.if car still run rough your idling to low.have idling check .
Posted on Jun 06, 2009
could be a number of things. timing may be off. timing chain could have jumped but then you would have lack of power and backfire. could have a vacuum leak. throttle body have carbon buildup around the butterfly valves? Valve problems. compression problems. many things. Hope its nothing major I know I am not being much help but those are some things to look at.
Posted on Nov 02, 2009
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