Question about 1997 Buick LeSabre

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Ohm settings for tps on 88 lesabre - 1997 Buick LeSabre

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It would be a volt setting at .52 to .56 volts

Posted on May 10, 2009

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Tps prob!!

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this is the IAC failing not TPS, the tps only signals to the ECU
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88 2.9 ranger sputters at 2500 to 3000 rpms when i drive it. it runs fine until i try to get on it or get into higher gear and rpms ut spits and sputters

If all plugs ,wires etc have been done, next i would confirm proper fuel pressure, then I would check throttle position sensor. An old analog ( with sweeping arm) multimeter on ohms, remove connector at TPS and connect to 2 of the pins on TPS .(throttle position sensor) Engine off, rotate throttle, or have someone push it from inside, slowly, gradually and needle of multimeter should sweep across as well, if not try different combination of 2 pins. When you find right combination that makes needle move when throttle pushed, observe the needle as someone pushes throttle slowly and steady from slow to wide open. If the needle jumps, or falls off and comes back up as throttle steadily pushed, then replace the TPS. If the needle slow and steady moves up /across and no stumbling, the TPS is probably ok. Make sure you test it a few times at least.

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When stop at alight , try to take off press on gas nothing happens then died and started up , 94 olds 88

Check throttle position sensor. If it doesnt work right it can cause this. have someone check and see if any codes have been set by the "brainbox" some tps can be adjusted all depends on which one you have. ask parts dealer if this is one that can be set. If not replace it. most tps on olds,chevrolets,etc. have 3 wires. one is 5v in, gnd, and voltage out. most are set between .5 -.7volts at idle.

Dec 20, 2011 | 1994 Oldsmobile 88

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1990 buick lasabre with a 3.8 engine, cranks but no spark. No voltage to the primary side of coil. Code shows 22. Changed the trottle position sensor, crank position sensor and cam position sensor. Had the...

1. Monitor the 5v reference, Gray wire to the Throttle Position Sensor (TPS) with a Digital Volt Ohm Meter (DVOM) set to the MIN/MAX setting.

2. Monitor the TPS signal circuit, Blue wire with a DVOM. Voltage should range smoothly from approximately 0.44 to 5.0 volts as the throttle is opened.

3. Tap test the Electronic Control Module (ECM) and see if the codes come back or if the engine reacts.

possible causes wiring or Powertrain Control Module (PCM)

Oct 31, 2010 | 1990 Buick LeSabre

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Aug 31, 2009 | 1988 Chevrolet Celebrity

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Need instructions for installing a tps sensor- '87 buick lesabre

you will need an ohm volt meter which is cheap these days at any reliable auto parts/Radio Shack store. The setting is 1.5 volts. The TPS is adjustable when the set screws are a little loose. Black wire is negative The other two wires are Positive. You can set this TPS fairly easy with the ignition on. The ohm meter will come with instructions how to use when purchased

May 12, 2009 | 1987 Buick LeSabre

1 Answer


turn on car and use voltmeter on the sensor get the base reading then get a reading with the throttle partly opened and see if it increases or what. it could be faulty, if it is not within spec then get a new one, unplug the batter negative terminal and install new sensor. reconnect everything and you shuold be on your way!

Feb 03, 2009 | 1993 Buick LeSabre

2 Answers

Buick lesabre 1997

you need to set the tps voltsge o that engine between .55 volts and .60 volts. with a voltmeter- check to find one of te three wires on the tps plug and find the wire that has less than 2 volts on it. the other two have 5 volts and ground. loosen the screws on the tps and rotate it until the voltage is arround .56 volts. - good luck

Sep 04, 2008 | 1988 Buick LeSabre

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