The car starts and will immediately stall if the rpm is under 2000. It will drive down the road at speed ok until you let your foot of the accelerator when under 2000 rpm it immediately stalls. Engine has just been replaced so my guess is that a electrical connection has gone bad. It feels like it is a fuel delivery problem.
Possibilities; vac leak, mass air flow sensor , throttle settings...
You need to plug it in to an engine diagnostic computer, it is probably a sensor that needs to be replaced. (Coolant temperature sensor is a probable cause) but you should plug in to engine diagnostic computer.
If you need further help, reach me via phone at https://www.6ya.com/expert/frankie_091f536560a54e12
SOURCE: 2004 mazda 3 stalls off idle
i found out from dealer there was a service bulitan for this problem. mazda reprogram the ecm for idle speed contorol . problem solved.
thank you
SOURCE: engine bogs and stalls
Check the air filter hose. My '99 Protege was idling rough and would sometimes shut off. The air filter hose was cracked half way around. I replaced it (easy just loosen two hose clamps and pull out the sensor) and the car is running fine.
SOURCE: wants to stall at idle.
Here is the most common cause of this stall, it is the idle speed control air-bypass valve and throttle valve, they get full of gunk over the miles and cause idle issues (stalls) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.
SOURCE: The rpm fluctuates at idle
It could be several things...low fuel pressure, a lazy 0 2 sensor, and even an IAC. If there isn't any service engine lights coming on, you will need a qualified tech to do the test since a lazy 0 2 sensor has to be looked at with some type of a volts meter and a scanner has the capability of doing a better job yet since you wouldn't have to get underneath the vehicle. Don't be fooled into thinking that it is just one thing; it could be several depending on the mileage.
It
can be low fuel pressure issue or clogged fuel pump. Or its engine related
issues,---------------
Check
the help link mentioned below to troubleshoot the problem: ------
Engine stalls when gas is given?
http://technoanswers.blogspot.in/2012/01/engine-stalls-when-gas-is-given.html
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Car stalls when MAF sensor is connected?
http://technoanswers.blogspot.in/2012/01/car-stalls-when-maf-sensor-is-connected.html
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Car Engine Stalls While Driving?
http://schematicsdiagram.blogspot.com/2011/12/car-engine-stalls-while-driving.html
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Car stalls and throws white smoke from exhaust?
http://repairhelpcenter.blogspot.com/2012/01/car-stalls-and-throws-white-smoke-from.html
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Stalls And Dies At Stop Sign?
http://www.howtobyme.blogspot.com/2012/07/stalls-and-dies-at-stop-sign.html
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GMC Sonoma Stalls and idles low
http://technoanswers.blogspot.com/2012/10/gmc-sonoma-stalls-and-idles-low.html
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Nissan Pathfinder stalls and bucks on Acceleration?
http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html
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1992 Chevrolet stalls and shutdown?
http://schematicsdiagram.blogspot.in/2012/04/1992-chevrolet-stalls-and-shutdown.html
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Stumbling and stalling at idle after engine rebuild?
http://schematicsdiagram.blogspot.in/2012/03/stumbling-and-stalling-at-idle-after.html
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1990 mazda 323 stalls and quit running?
http://technoanswers.blogspot.in/2012/02/1990-mazda-323-stalls-and-quit-running.html
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2000 Toyota
Camry: Idling and Stalling Problem?
http://whatisbyme.blogspot.in/2012/05/2000-toyota-camry-idling-and-stalling.html
---------
1995 Toyota
Corolla: Stalls, Sputters and Pops Through Intake Manifold?
http://whatisbyme.blogspot.in/2012/05/1995-toyota-corolla-stalls-sputters-and.html
----------------
1999 Toyota Camry: Erratic stalling and high engine RPM at
idle?
http://whatisbyme.blogspot.in/2012/05/1999-toyota-camry-erratic-stalling-and.html
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Dodge Dakota stalls, stumbles at idle. Has low fuel flow and
runs hot?
http://schematicsdiagram.blogspot.in/2012/03/dodge-dakota-stallsstumbles-at-idlehas.html
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1994 Toyota
4Runner: Stalls and Stops While Driving?
http://whatisbyme.blogspot.in/2012/05/1994-toyota-4runner-stalls-and-stops.html
---------------
1997 Toyota Camry: Erratic Idle and Intermittent engine
stalling?
http://technoanswers.blogspot.in/2012/04/1997-toyota-camry-erratic-idle-and.html
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Ford Maverick: No Idle and Stalling issues?
http://schematicsdiagram.blogspot.in/2012/04/ford-maverick-no-idle-and-stalling.html
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These
details will help.
Thanks.
http://whatisbyme.blogspot.in/2012/05/1999-toyota-camry-erratic-stalling-and.html
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