running rough - Maintenance and Repair Forum

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running rough
Thursday, March 24, 2011 6:29 PM
My car has the 2.4 and was running great until Tuesday morning. I started it and it ran fine for about a minute, then it tried to die. I gave it some gas and it picked back up but when the RPMs are below about 2500 if i push on the gas peddle it misses really bad and almost stalls out. After I get it revved above there it runs better but still not right. It is also running rich because it shoots fire out the exhaust after it gets warmed up. I have changed the coils and put a different ignition module on it, new plugs and boots, tested the fuel pump its good, changed the fuel pressure regulator. I had a check engine light for a low output map sensor so i changed it with an old one that i had and the light went out but could that sensor be bad too. That's the only thing i can think that it could be. Any ideas?

Re: running rough
Friday, March 25, 2011 1:47 PM
Well its still not running right and dies after about a minute of running so far I have put on:
fuel filter
fuel pressure regulator
coil packs
plugs and boots
MAP sensor
Intake air temp sensor
throttle position sensor
idle air control valve

I took the throttle body off and cleaned it and I cant find any vacuum leaks on any of the hoses. There is still no check engine light but there is definitely something wrong but Im out of ideas. I hope someone on here can help me out with an idea of what it could be.
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