Check your engine wires or boots if this is a coil over set up. but i dont think it would cause a complete stall, just a crappy idle unless really bad...
Checking sensor activity would be best with a scan tool. Watch your MASS AIR FLOW SENSOR (MAF) G/S should increase as engine speeds increase. It should not be stuck. Tap this part if it appears in a stuck value it sometimes acts up and can show its self. This part watches air going into the engine. If this is false, the engine cannot meet the demands from you because it is has no idea how much fuel to mix or has a bad idea due to sluggish sensor. G/s @ idle is usually around 4g- 8g depending on most cars.
Also check for typical vacuum leaks and intake hose leaks. if you replaced this many items. My best guess would be check MAF sensor.
Good luck
SOURCE: car runs rough at idle
clean out ur throttle body, just follow the hose from the air filter to the throttle body. Need 2 people to do this. Don't remove the hose completely from the throttle body. Just enuff to be able to spray ur intake cleaner into the throttle body. Do this especially if its worse when the motor is hot, as this would confirm the problem.
SOURCE: My 1996 Ford F150 4.9l 5spd. rough idle, poor drivability, stall
try replacing the throttle position sensor
SOURCE: 98 Chevy Tahoe 5.7 liter engine cuts out and
Have you checked for vaccume leaks?
You've got lots of parts in there, Has the problem been the reason you have replaced all of those, or did it come up while doing some of the repairs?
SOURCE: 2000 kia sportage trouble code po171 once in
I have 2005 Kia Sportage with a check engine light. No other symptoms. I was told by Kia and Local mechanic that it is the fuel injectors. Error Code states that Fuel injectors are running lean. Put Master airflow- no change. Ran engine test with propane to run rich and trim never changed from 15. Car runs great. Kia dealer said that this is because we use Ethel in gas that it effects the alumium fuel rail delivery to the injectors and that it is necessary to change all of them .Kia Dealer wants $1,000.00 deposit to place order 6 fuel injectors from Kia. (Has anyone heard of that?)Also put fuel injector cleaner in tank.Does anyone have any suggestions before I spend over $1,000.00 to replace all 6 injectors or possible idea of what could be wrong?
SOURCE: 1996 Honda Accord Rough Idle Even After tune up
Perform a valve clearance inspection and adjust if necessary. Tight or sticking valves will cause a misfire or rough running concern. Note: Perform valve adjustment when the engine is stone cold. 4cyl: INT 0.26mm EXH: 0.30mm (V6 engine are hydraulic and no adjust necessary.) Also check for a sticking or stuck open EGR valve. For diagnostic purposes only: Remove the EGR valve. Place a business card over the EGR passage and bolt the EGR valve back on. This plugs the EGR ports and if the misfire goes away the EGR valve is partially stuck open and is defective.
Check for low fuel pressure. Check for low compression. Check cam timing. Check for a weak ignition coil. Also don't over look the possibility of worn or broken engine mounts which cause excessive engine movement and engine vibration. -hope this helps
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