Question about 2001 Oldsmobile Bravada

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I suspect that my throttle position sensor is bad. My 2002 Bravada has been stalling, erratic idling, and the full economy has plummeted. I know how to remove it but how do I A. Test it, where do I place the leads from the Volt/ohm meter? B. How do I set the new one, if I have to do that? I'm an electrician so I'm familiar with pots and rheos, I'm just unfamiliar with this equipment. Thanks

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I am sure its not the throttle position sensor,The problem you have is the air idle control valve.Or stepper motor has some call it.It fitted to the inlet manifold.

Posted on Dec 30, 2010


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2002 jeep stalls, no idle or mixture valve on throttle body

When it stalls is just as important as that it stalls. Random stalling while driving and re-starting after a wait can generally be traced to either a bad fuel pump or a failing crank position sensor. Neither component is cheap so I'd do some testing before replacement. All Jeeps have an idle control valve and throttle position sensor. Control valves can get gummed up. Control valves can usually be cleaned out by spraying carb cleaner into the passage in the throttle body bore. In severe cases, the control needs to be removed. If you remove it, DO NOT turn the part that goes inside the TB...just spray it off and clean inside the TB. Make sure you don't lose the small "o" ring. Test procedures are outlined in both Chilton and Haynes manuals. BEFORE doing any testing, verify that all your fuses are good in the power distribution center and inside the drivers compartment. You can also get a free scan done at most larger parts stores. OK, I've given you the most common reasons for stalling...There are others but testing all systems is the only way to determine that.

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2kd-ftv engine problem p1226 fuel line malfunction

Possible causes of the P1226 code include:
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  • Faulty throttle control actuator harness is open or shorted, throttle position sensor 2
  • Electric throttle control actuator circuit has poor electrical connection, throttle position sensor 2
To nail down the exact cause of the code, do a visual inspection for lose wires and connections at the sensor, or damage to the sensor body itself. If no problems with the wiring and connections are detected, a worn/damaged electric throttle control actuator is likely at fault. Signs of a bad throttle control actuator include erratic acceleration, and unresponsive throttle, and poor fuel economy.

Sep 23, 2012 | Cars & Trucks

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When i put it in drive and give it the gas an let off it goes dead

Possibilities include:

1) Bad MAF (Mass Air Flo) Sensor (causes erratic idling and stalling)
2) Bad TPS (Throttle Position Sensor) controls hot and cold idling speed

Apr 04, 2012 | 2004 Ford F150

1 Answer

Dies when gas pedal is pressed

This engine has automatic idle speed control, the computer controls a "air bypass" valve on the side of the throttle body where the air intake hose from the air cleaner is connected, the valve and the throttle butterfly get "sludged" up and this causes all kinds of idle problems and off idle stall, see full list below and fix for the problems

Here is the common cause of surges, cold stalls, stalls at stops, slow idle speed, erratic idle speed, rough idle and engine hesitation (and other problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues (stalls, low idle) like yours.

To correct this problem Buy a can of throttle valve cleaner (it is made by CRC) from the local auto parts store, NEVER USE CARB CLEANING SPRAY, IT DESTROYS THE ANTI-STICK TEFLON COATING, spray it into the air intake through the throttle body of the engine until you have used about half the can, you will need to hold the idle up while you do this, it will try to stall, after this shut the engine down and disconnect the Negative (-) battery cable for 5 minutes. The intake is now clean, if you continue to have the idle speed control problems you may need to seek the help of a professional.

Dec 04, 2011 | 1991 Ford F150

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Irratic idle

throttle position sensor maybe.

Nov 15, 2011 | 2005 Chevrolet Cobalt

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Every time i stop at a four way stop the thing dies and i have to put the car in park and turn the key and gassing it before it starts. Please Help.

3 areas of concern are as follows:
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  2. Bad EGR (Exhaust Gas Recirculator) valve - erratic idling, skipping
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Your problem may be any 1 of the 3 or a combination. Best advice is to get a free diagnostic test done (most chain auto parts stores will do this test free) and come back with the error codes, These codes will help to narrow down where the exact problem lies.

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1993 S-10 Blazer has erratic idle and stalls

Check the tps "trottle positioning sensor, on mine the idle would not stay steady, and shift so hard that it would sound like it was going to break something. it is located on the drivers side of the throttle body with a push in electrical connector.

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Erratic idle, going from 800, down to almost a stall, then back up. Rythmic. Does hot or cold. 200K 4 cyl YJ, runs good, does not burn oil. ???? Harry from Mt. Holly, N.J.

It sounds like a Throttle position sensor is bad replace it. The component is locate near the throttle valve you can locate it by following the throttle cable to the throttle valve.

Nov 03, 2009 | 1990 Jeep Wrangler

2 Answers


Engine may stall with the air-conditioner on and or while adding additional loads to the engine at idle. An example of an addition load would be turning the steering wheel left or right with the air-conditioning on. This type of stall usually occurs during idle or slow parking lot maneuvers. This concern may not set any diagnostic trouble codes.

Clean the throttle body bore and the throttle valve plate using a clean shop towel with GM top engine cleaner, GM P/N 1052626 (Canadian P/N 993026) or AC-Delco Carburetor Tune-Up Conditioner, P/N X66-P, or an equivalent product.

Jun 09, 2008 | 2002 Oldsmobile Bravada

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