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BUICK OLDSMOBILE ISUZU MAP Sensor ALL GM CARS! 16249939
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BUICK OLDSMOBILE ISUZU MAP Sensor ALL GM CARS! 16249939
BUICK OLDSMOBILE ISUZU MAP Sensor ALL GM CARS! 16249939

BUICK OLDSMOBILE ISUZU MAP Sensor ALL GM CARS! 16249939

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end_display_feedback_code_window ChandlerMotorsports StoreCheck out our overall recent feedback, feedback on this item, and our shipping feedback below. RELEVENT RECENT REVIEWS! Noone else has this.Our seller ratings are in the top 5% of eCRATER. It takes an incredible level of customer service to be there.We always have the lowest price on eCRATER, if not... Let us know! Manufacturer direct pricing.Great parts that have taken years to source and produce for you.Phone Number and an Address... the real deal. Not someone selling out of their basement!Add us to your favorite seller list! Click--> Chandler MotorsportsThe PartRecent Feedback ReceivedAbout the partNewRevised designOEM FitChandler MotorSports brand produced by Chandler Performance Engineering.CMS & Topshelf We have this part available in two versions. Our house brand CMS. We also carry this part under the Topshelf brand which carries a LIFETIME warranty. Search our listings if you're interested in the other version of this part.Typical driveability symptoms that may be MAP related include:Surging.Rough idle.A rich fuel condition, which may cause spark plug fouling.Detonation due to too much spark advance and a lean fuel ratio.Loss of power and/or fuel economy due to retarded timing and an excessively rich fuel ratio.A vacuum leak will reduce intake vacuum and cause the MAP sensor to indicate a higher than normal load on the engine. The computer will try to compensate by richening the fuel mixture and retarding timing -- which hurts fuel economy, performance and emissions.MAP SENSOR CHECKSFirst, make sure engine manifold vacuum is within specifications at idle. If vacuum is unusually low, there may be a vacuum leak (leaky hose connection, intake manifold or throttle body gasket, power brake booster, etc.), an exhaust restriction (clogged converter), or an EGR leak (EGR valve not closing at idle).A low intake vacuum reading or excessive backpressure in the exhaust system can trick the MAP sensor into indicating there's a load on the engine. This may result in a rich fuel condition.A restriction in the air intake (such as a plugged air filter), on the other hand, may produce higher than normal vacuum readings. This would result in a load low indication from the MAP sensor and possibly a lean fuel condition.Next, check the sensor's vacuum hose for kinks or leaks. Then use a hand-held vacuum pump to check the sensor itself for leaks. The sensor should hold vacuum. Any leakage calls for replacement.An outright failure of the MAP sensor, loss of the sensor signal due to a wiring problem, or a sensor signal that is outside the normal voltage or frequency range will usually set a diagnostic trouble code (DTC) and turn on the Check Engine light. use a scan tool to check MAP sensor input and fault codesMAP SENSOR SCAN TOOL CHECKSOn 1995 and newer vehicles with OBD II self-diagnostics, a DTC code P0105 to P0109 would indicate a fault in the MAP sensor circuit.On older pre-OBD II vehicles, the MAP codes are:General Motors: Codes 34, 33, 31Ford: Codes 22, 72Chrysler: Codes 13, 14On vehicles that provide data stream through a diagnostic connector and allow a scan tool to display sensor values, the MAP sensor's output voltage can be read and compared to specifications. Basically, you want to see a quick and dramatic change in the MAP sensor signal when the throttle on an idling engine is snapped open and shut. No change would indicate a sensor or wiring fault.If the sensor is reading low or there is no reading at all, check for proper reference voltage to the sensor. It should be very close to 5 volts. Also check the ground connection. If the reference voltage is low, check the wiring harness and connector for looseness, damage or corrosion.Scan tools that display OBD II data will also display a "calculated load value" that can be used to determine if the MAP sensor is working or not. The load value is computed using inputs from the MAP sensor, TPS sensor, airflow sensor and engine speed. The value should be low at idle, and high when the engine is under load. No change in the value, or a higher than normal reading at idle might indicate a problem with the MAP sensor, TPS sensor or airflow sensor. MAP sensor waveformMAP SENSOR TESTSA MAP sensor can also be bench tested by applying vacuum to the vacuum port with a hand vacuum pump. With 5 volts to the reference wire, the output voltage of an analog MAP sensor should drop, and on a Ford digital MAP sensor the frequency should increase.An analog MAP sensor's voltage can also be read directly using a voltmeter or oscilloscope. A digital MAP sensor's frequency signal can be read with a DVOM if it has a frequency function, or an oscilloscope. The leads would be connected to the signal wire and ground.Warning: Do NOT use an ordinary voltmeter to check a Ford BP/MAP sensor because doing so can damage the electronics inside the sensor. This type of sensor can only be diagnosed with a DVOM that displays frequency, or a scope or scan tool.Another way to check out a Ford digital MAP sensor circuit is to input a "simulated" MAP sensor signal with a tester that can generate an adjustable frequency signal. Changing the frequency of the simulated signal should trick the computer into changing the fuel mixture (look for a change in the injector pulse width signal).No change would indicate a possible computer problem.MAP SENSOR REPLACEMENTIf a MAP sensor needs to be replaced, make sure the replacement is the correct one for the application. Differences in calibration between model years and engines will affect the operation of the engine management system.ManufacturerPart NumberGMOEM16249939GMOEM16187556GMOEM9359409Standard Motor Products SMP KEM PartsAS59Ac Delco213-4434Ac Delco213-796Airtex5S2410BWDEC1636NiehoffFE1636DelphiPS10000-11b1WellsSU1078WellsSU14211984 GMC CABALLERO V8-350ci 5.7L Diesel Vin N1984 GMC CABALLERO V8-305ci 5.0L 4 BBL Vin H1985 CHEVROLET PICKUP C20 3/4 TON 4x2 V8-379ci 6.2L Diesel Vin J1985 CHEVROLET PICKUP C20 3/4 TON 4x2 V8-379ci 6.2L Diesel Vin C1986 CHEVROLET PICKUP K30 1 TON 4x4 V8-454ci 7.4L 4 BBL Vin W1986 GMC CABALLERO V8-305ci 5.0L 4 BBL Vin H1994 CADILLAC SEVILLE SLS V8-281ci 4.6L F/I Vin Y (SLS)1994 CADILLAC SEVILLE STS V8-281ci 4.6L F/I Vin 9 (STS)1995 CADILLAC DEVILLE CONCOURS V8-281ci 4.6L F/I Vin Y1995 CADILLAC ELDORADO V8-281ci 4.6L F/I Vin 9 (TOURING)1995 CADILLAC ELDORADO V8-281ci 4.6L F/I Vin Y1995 CADILLAC SEVILLE SLS V8-281ci 4.6L F/I Vin Y (SLS)1995 CADILLAC SEVILLE STS V8-281ci 4.6L F/I Vin 9 (STS)1995 CHEVROLET CAMARO V6-231ci 3.8L F/I Vin K1995 OLDSMOBILE AURORA V8-244ci 4.0L F/I Vin C1995 PONTIAC FIREBIRD V6-231ci 3.8L F/I Vin K1996 BUICK LESABRE V6-231ci 3.8L F/I Vin K1996 BUICK PARK AVENUE V6-231ci 3.8L F/I Vin K1996 BUICK REGAL V6-231ci 3.8L F/I Vin K1996 BUICK RIVIERA V6-231ci 3.8L F/I Vin K1996 CADILLAC DEVILLE V8-281ci 4.6L F/I Vin Y1996 CADILLAC DEVILLE CONCOURS V8-281ci 4.6L F/I Vin 91996 CADILLAC ELDORADO V8-281ci 4.6L F/I Vin Y1996 CADILLAC ELDORADO V8-281ci 4.6L F/I Vin 9 (TOURING)1996 CADILLAC SEVILLE SLS V8-281ci 4.6L F/I Vin Y (SLS)1996 CADILLAC SEVILLE STS V8-281ci 4.6L F/I Vin 9 (STS)1996 CHEVROLET ASTRO VAN V6-262ci 4.3L F/I Vin W1996 CHEVROLET BLAZER S10/T10 V6-262ci 4.3L F/I Vin W1996 CHEVROLET CAMARO V6-231ci 3.8L F/I Vin K1996 CHEVROLET LUMINA V6-207ci 3.4L F/I Vin X1996 CHEVROLET MONTE CARLO Z34 V6-207ci 3.4L F/I Vin X (Z34)1996 CHEVROLET PICKUP C1500 1/2 TON 4x2 V6-262ci 4.3L F/I Vin W1996 CHEVROLET PICKUP C1500 1/2 TON 4x2 V8-305ci 5.0L F/I Vin M1996 CHEVROLET PICKUP C1500 1/2 TON 4x2 V8-350ci 5.7L F/I Vin R1996 CHEVROLET PICKUP C2500 3/4 TON 4x2 V8-350ci 5.7L CNG/FI Vin R1996 CHEVROLET PICKUP C2500 3/4 TON 4x2 V8-305ci 5.0L F/I Vin M1996 CHEVROLET PICKUP C2500 3/4 TON 4x2 V8-350ci 5.7L F/I Vin R1996 CHEVROLET PICKUP C2500 3/4 TON 4x2 V8-454ci 7.4L F/I Vin J1996 CHEVROLET PICKUP C3500 1 TON 4x2 V8-350ci 5.7L F/I Vin R1996 CHEVROLET PICKUP C3500 1 TON 4x2 V8-454ci 7.4L F/I Vin J1996 CHEVROLET PICKUP K1500 1/2 TON 4x4 V6-262ci 4.3L F/I Vin W1996 CHEVROLET PICKUP K1500 1/2 TON 4x4 V8-305ci 5.0L F/I Vin M1996 CHEVROLET PICKUP K1500 1/2 TON 4x4 V8-350ci 5.7L F/I Vin R1996 CHEVROLET PICKUP K2500 3/4 TON 4x4 V8-305ci 5.0L F/I Vin M1996 CHEVROLET PICKUP K2500 3/4 TON 4x4 V8-350ci 5.7L F/I Vin R1996 CHEVROLET PICKUP K2500 3/4 TON 4x4 V8-454ci 7.4L 4 BBL Vin J1996 CHEVROLET PICKUP K2500 3/4 TON 4x4 V8-350ci 5.7L CNG/FI Vin R1996 CHEVROLET PICKUP K3500 1 TON 4x4 V8-350ci 5.7L F/I Vin R1996 CHEVROLET PICKUP K3500 1 TON 4x4 V8-454ci 7.4L F/I Vin J1996 CHEVROLET PICKUP S10/T10 V6-262ci 4.3L F/I Vin W1996 CHEVROLET PICKUP S10/T10 V6-262ci 4.3L F/I Vin X1996 CHEVROLET SUBURBAN C1500 1/2TON4x2 V8-350ci 5.7L F/I Vin R1996 CHEVROLET SUBURBAN C2500 3/4TON4x2 V8-350ci 5.7L F/I Vin R1996 CHEVROLET SUBURBAN C2500 3/4TON4x2 V8-454ci 7.4L F/I Vin J1996 CHEVROLET SUBURBAN K1500 1/2TON4x4 V8-350ci 5.7L F/I Vin R1996 CHEVROLET SUBURBAN K2500 3/4TON4x4 V8-350ci 5.7L F/I Vin R1996 CHEVROLET SUBURBAN K2500 3/4TON4x4 V8-454ci 7.4L F/I Vin J1996 CHEVROLET TAHOE V8-350ci 5.7L F/I Vin R1996 CHEVROLET VAN G1500 1/2TON EXPRESS V6-262ci 4.3L F/I Vin W1996 CHEVROLET VAN G1500 1/2TON EXPRESS V8-305ci 5.0L F/I Vin M1996 CHEVROLET VAN G1500 1/2TON EXPRESS V8-350ci 5.7L F/I Vin R1996 CHEVROLET VAN G2500 3/4TON EXPRESS V6-262ci 4.3L F/I Vin W1996 CHEVROLET VAN G2500 3/4TON EXPRESS V8-305ci 5.0L F/I Vin M1996
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