Ford Freestar Idel rough OBO 11 Error code is P2195 and P2197 first OS semsors changed no difference air leaks cant find any . The Torque converter was changed ( ford recall) since that replacement the Van RUNS BAD on IDEL and quite often stalls idel , any thoughts ?
SOURCE: IDEL VERY ROUGH, IT RUNS GOOD BUT IDEL BAD
If the check engine light is on, then take the car to an autoparts store and have them scan the computer for any fault codes stored. The check engine light is to alert you that the computer has noted a fault in one of the car's systems. It sounds like a problem that could be caused by a faulty idle air control valve, but getting the codes will eliminate the need for speculation and should narrow down cause of the problem. Sorry for your trouble and I hope this helped. Best wishes.
SOURCE: 1994 Cadillac DeVille Concourse - Runs rough?
The "check engine" light will "light" when there is a malfunction in the engine management system. The fault code is then stored in the computer. The computer must be scanned to retrieve these stored faults to pinpoint the malfunctioning component. We recommend buying your own scanner and doing it yourself. With a pocket scanner you can check for fault codes to find out why the light came on in the first place. You can clear your cars trouble codes after you replace the malfunctioning sensors.
SOURCE: need info on rough idel 5.9 cummins
bad injector?
easy to test with vom, just check from terminal on injector to ground if one reads different thats the problem, you do need to disconnect wire to check, my help is free and will be glad to help further just vote fixa..LOL my rating is all I care about. Hope yu can help me too.
SOURCE: 1985 corvette
you might want to replace the plug end. I had a 99 neon with the same ploblem changed the sensor but the plug was shorted, changed that and it run great ever since.
SOURCE: rough idel and no power on my 95 aspire changed
Check for leaking vaccum lines from the engine intake manifold. If no leak, test the IAC motor and clean out the air bypass passages per instructions below. Let me know if this doesn't solve the problem or you have any questions. Fig. Fig. 2: Connect an ohmmeter to the IAC valve; the resistance should be 7.7-9.3 ohms At this point, if your IAC checks good, I recommend you take out the 4 screws seen above, remove the motor, and clean out the air passages/valve with carb cleaner. Also remove the big (3 inch diameter) hose from the throttle and clean out the throttle body, if dirty. If the IAC tests bad, go to the removal and installation directions below. The next test requires a scanner. If you don't have a scanner, skip this test. Fig. Fig. 3: Idle Air Control Bypass Air (IAC BPA) valve assembly components
OPERATION
The Idle Air Control Bypass Air (IAC BPA) valve consists of an idle air control valve and a bypass air valve.
The bypass air valve functions during cold engine conditions to increase engine idle speed. It consists of a thermowax bead and a valve.
Engine coolant is directed around the thermowax, which opens and closes the valve. During cold engine operation below 140°F (60°C), the thermowax is contracted enough to allow the valve to open. As the coolant heats, the thermowax begins to expand. When the coolant reaches temperatures above 140°F (60°C), the thermowax expands and closes the valve.
The valve controls the amount of throttle valve bypass, which ensures a smooth idle under all engine operating conditions.
TESTING
See Figures 1, 2 and 3 (if you don't have an ohmmeter, skip this test)
REMOVAL & INSTALLATION
Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.
CAUTION
The lower coolant line should be disconnected after the valve is separated from the upper intake manifold.
To install:
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