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Standard Ignition AS4 Manifold Absolute Pressure SensorOE Quality 60-Day Returns
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Part #: AS4

Standard Ignition AS4 Manifold Absolute Pressure Sensor

⚙️ 382 vehicles fit this part
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🚗Fitment: Buick, Chevrolet, GMC, Pontiac, AM General, Oldsmobile, Isuzu, and Geo, Park Avenue, Regal, Express 2500, Express 3500, Savana 2500, Savana 3500, Bonneville, Grand Prix, Hummer, C2500, C3500, K2500, K3500, Riviera, C1500 Suburban, C2500 Suburban, K1500 Suburban, K2500 Suburban, P30, Tahoe, P3500, C1500, K1500, LSS, Yukon, 88, Blazer, Typhoon, Impulse, Syclone, Sunbird, Spectrum, I-Mark, Grand Am, Sunburst, Skyhawk, J2000 Sunbird, Monte Carlo, Firebird, Century, and LeSabre
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Overview of Standard Ignition AS4 Manifold Absolute Pressure Sensor

The Standard Ignition AS4 Manifold Absolute Pressure (MAP) Sensor is designed to provide accurate pressure readings for optimal engine performance. This sensor is compatible with a range of vehicles including Buick, Chevrolet, GMC, and Pontiac models, ensuring reliable fitment and function.

  • Connector Gender: Female
  • Connector Quantity: 1
  • Connector Type: Plug in
  • Terminal Gender: Female
  • Terminal Quantity: 3
  • Terminal Type: Bullet

Technical Details and Compatibility

The AS4 MAP sensor features a female plug-in connector with a single connection point, designed for straightforward installation. It includes three female bullet terminals, which provide secure electrical connections to the vehicle’s engine control system. This sensor is engineered to work with various GM and related makes, including Buick, Chevrolet, Geo, GMC, Isuzu, Oldsmobile, and Pontiac. Compatible models include the Chevrolet Blazer, C1500, Tahoe, and Silverado series, as well as Buick LeSabre, Pontiac Firebird, and GMC Savana 2500 among others.

Function and Application

The manifold absolute pressure sensor measures the pressure within the intake manifold, providing critical data to the engine control unit (ECU) for fuel delivery and ignition timing adjustments. This sensor helps address issues such as:

  • Erratic engine idling or stalling
  • Poor fuel economy due to incorrect air-fuel mixture
  • Check engine light triggered by pressure sensor faults
  • Reduced engine power or hesitation during acceleration
  • Emission control system malfunctions

Installation Notes and Tips

Installation of the Standard Ignition AS4 sensor requires disconnecting the vehicle battery before removal of the old sensor. Ensure the female plug-in connector and bullet terminals are clean and free of corrosion before connecting. Properly secure the sensor to the intake manifold to avoid vacuum leaks. Refer to the vehicle’s service manual for torque specifications and sensor location details specific to your model.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The AS4 MAP sensor undergoes rigorous testing to verify accuracy and electrical integrity. This part is backed by Standard Ignition’s limited warranty, providing coverage against defects in material and workmanship under normal use.

BrandStandard Ignition
Part NumberAS4
Connector GenderFemale
Connector TypePlug In
Terminal GenderFemale
Terminal TypeBullet

This part fits 382 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2005BuickPark AvenueN/A
2004BuickPark AvenueN/A
2003BuickPark AvenueN/A
2003BuickRegalN/A
2002BuickPark AvenueN/A
2002BuickRegalN/A
2002ChevroletExpress 25006.5LV8N/A
2002ChevroletExpress 25006.5LV8DIESELN/A
2002ChevroletExpress 35006.5LV8N/A
2002ChevroletExpress 35006.5LV8DIESELN/A
2002GMCSavana 25006.5LV8N/A
2002GMCSavana 25006.5LV8DIESELN/A
2002GMCSavana 35006.5LV8N/A
2002GMCSavana 35006.5LV8DIESELN/A
2002PontiacBonneville3.8LV6N/A
2002PontiacGrand Prix3.8LV6N/A
2001BuickPark AvenueN/A
2001BuickRegalN/A
2001ChevroletExpress 25006.5LV8N/A
2001ChevroletExpress 25006.5LV8DIESELN/A
2001ChevroletExpress 35006.5LV8N/A
2001ChevroletExpress 35006.5LV8DIESELN/A
2001GMCSavana 25006.5LV8N/A
2001GMCSavana 25006.5LV8DIESELN/A
2001GMCSavana 35006.5LV8N/A
2001GMCSavana 35006.5LV8DIESELN/A
2001PontiacBonneville3.8LV6N/A
2001PontiacGrand Prix3.8LV6N/A
2000BuickPark AvenueN/A
2000BuickRegalN/A
2000ChevroletC25006.5LV8DIESELN/A
2000ChevroletC3500DIESELN/A
2000ChevroletC35006.5LV8DIESELN/A
2000ChevroletExpress 25006.5LV8N/A
2000ChevroletExpress 25006.5LV8DIESELN/A
2000ChevroletExpress 35006.5LV8N/A
2000ChevroletExpress 35006.5LV8DIESELN/A
2000ChevroletK2500DIESELN/A
2000ChevroletK25006.5LV8DIESELN/A
2000ChevroletK3500DIESELN/A
2000ChevroletK35006.5LV8DIESELN/A
2000GMCC25006.5LV8DIESELN/A
2000GMCC3500DIESELN/A
2000GMCC35006.5LV8DIESELN/A
2000GMCK25006.5LV8N/A
2000GMCK25006.5LV8DIESELN/A
2000GMCK35006.5LV8N/A
2000GMCK35006.5LV8DIESELN/A
2000GMCSavana 25006.5LV8N/A
2000GMCSavana 25006.5LV8DIESELN/A
2000GMCSavana 35006.5LV8N/A
2000GMCSavana 35006.5LV8DIESELN/A
2000PontiacBonneville3.8LV6N/A
2000PontiacGrand Prix3.8LV6N/A
1999BuickPark AvenueN/A
1999BuickRegalN/A
1999BuickRivieraN/A
1999ChevroletC1500 Suburban6.5LV8N/A
1999ChevroletC1500 Suburban6.5LV8DIESELN/A
1999ChevroletC25006.5LV8DIESELN/A
1999ChevroletC2500 Suburban6.5LV8DIESELN/A
1999ChevroletC3500DIESELN/A
1999ChevroletC35006.5LV8DIESELN/A
1999ChevroletExpress 25006.5LV8DIESELN/A
1999ChevroletExpress 35006.5LV8DIESELN/A
1999ChevroletK1500 SuburbanDIESELN/A
1999ChevroletK1500 Suburban6.5LV8DIESELN/A
1999ChevroletK2500DIESELN/A
1999ChevroletK25006.5LV8DIESELN/A
1999ChevroletK2500 SuburbanDIESELN/A
1999ChevroletK2500 Suburban6.5LV8DIESELN/A
1999ChevroletK3500DIESELN/A
1999ChevroletK35006.5LV8DIESELN/A
1999ChevroletP306.5LV8N/A
1999ChevroletP306.5LV8DIESELN/A
1999ChevroletTahoeDIESELN/A
1999ChevroletTahoe6.5LV8DIESELN/A
1999GMCC1500 SuburbanDIESELN/A
1999GMCC1500 Suburban6.5LV8DIESELN/A
1999GMCC25006.5LV8DIESELN/A
1999GMCC2500 Suburban6.5LV8N/A
1999GMCC2500 Suburban6.5LV8DIESELN/A
1999GMCC3500DIESELN/A
1999GMCC35006.5LV8DIESELN/A
1999GMCK1500 Suburban6.5LV8N/A
1999GMCK1500 Suburban6.5LV8DIESELN/A
1999GMCK2500DIESELN/A
1999GMCK25006.5LV8DIESELN/A
1999GMCK2500 Suburban6.5LV8N/A
1999GMCK2500 Suburban6.5LV8DIESELN/A
1999GMCK35006.5LV8N/A
1999GMCK35006.5LV8DIESELN/A
1999GMCP35006.5LV8N/A
1999GMCP35006.5LV8DIESELN/A
1999GMCSavana 25006.5LV8N/A
1999GMCSavana 25006.5LV8DIESELN/A
1999GMCSavana 35006.5LV8N/A
1999GMCSavana 35006.5LV8DIESELN/A
1999PontiacBonneville3.8LV6N/A
1999PontiacGrand Prix3.8LV6N/A
1998BuickPark AvenueN/A
1998BuickRegalN/A
1998BuickRivieraN/A
1998ChevroletC15006.5LV8DIESELN/A
1998ChevroletC1500 Suburban6.5LV8N/A
1998ChevroletC1500 Suburban6.5LV8DIESELN/A
1998ChevroletC25006.5LV8N/A
1998ChevroletC25006.5LV8DIESELN/A
1998ChevroletC2500 Suburban6.5LV8DIESELN/A
1998ChevroletC3500DIESELN/A
1998ChevroletC35006.5LV8DIESELN/A
1998ChevroletExpress 2500DIESELN/A
1998ChevroletExpress 25006.5LV8DIESELN/A
1998ChevroletExpress 3500DIESELN/A
1998ChevroletExpress 35006.5LV8DIESELN/A
1998ChevroletK1500DIESELN/A
1998ChevroletK15006.5LV8DIESELN/A
1998ChevroletK1500 SuburbanDIESELN/A
1998ChevroletK1500 Suburban6.5LV8DIESELN/A
1998ChevroletK2500DIESELN/A
1998ChevroletK25006.5LV8DIESELN/A
1998ChevroletK2500 SuburbanDIESELN/A
1998ChevroletK2500 Suburban6.5LV8DIESELN/A
1998ChevroletK3500DIESELN/A
1998ChevroletK35006.5LV8DIESELN/A
1998ChevroletP306.5LV8N/A
1998ChevroletP306.5LV8DIESELN/A
1998ChevroletTahoe6.5LV8DIESELN/A
1998GMCC1500 Suburban6.5LV8DIESELN/A
1998GMCC25006.5LV8N/A
1998GMCC25006.5LV8DIESELN/A
1998GMCC2500 Suburban6.5LV8N/A
1998GMCC2500 Suburban6.5LV8DIESELN/A
1998GMCC35006.5LV8N/A
1998GMCC35006.5LV8DIESELN/A
1998GMCK15006.5LV8DIESELN/A
1998GMCK1500 Suburban6.5LV8N/A
1998GMCK1500 Suburban6.5LV8DIESELN/A
1998GMCK2500DIESELN/A
1998GMCK25006.5LV8DIESELN/A
1998GMCK2500 Suburban6.5LV8N/A
1998GMCK2500 Suburban6.5LV8DIESELN/A
1998GMCK35006.5LV8N/A
1998GMCK35006.5LV8DIESELN/A
1998GMCP35006.5LV8N/A
1998GMCP35006.5LV8DIESELN/A
1998GMCSavana 25006.5LV8N/A
1998GMCSavana 25006.5LV8DIESELN/A
1998GMCSavana 35006.5LV8N/A
1998GMCSavana 35006.5LV8DIESELN/A
1998OldsmobileLSS3.8LV6N/AOE No. 16009886
1998PontiacBonneville3.8LV6N/A
1998PontiacGrand Prix3.8LV6N/A
1997BuickPark AvenueN/A
1997BuickRegalN/A
1997BuickRivieraN/A
1997ChevroletC15006.5LV8DIESELN/A
1997ChevroletC1500 Suburban6.5LV8N/A
1997ChevroletC1500 Suburban6.5LV8DIESELN/A
1997ChevroletC25006.5LV8N/A
1997ChevroletC25006.5LV8DIESELN/A
1997ChevroletC2500 Suburban6.5LV8DIESELN/A
1997ChevroletC3500DIESELN/A
1997ChevroletC35006.5LV8DIESELN/A
1997ChevroletExpress 2500DIESELN/A
1997ChevroletExpress 25006.5LV8DIESELN/A
1997ChevroletExpress 3500DIESELN/A
1997ChevroletExpress 35006.5LV8DIESELN/A
1997ChevroletK15006.5LV8N/A
1997ChevroletK15006.5LV8DIESELN/A
1997ChevroletK1500 SuburbanDIESELN/A
1997ChevroletK1500 Suburban6.5LV8DIESELN/A
1997ChevroletK2500DIESELN/A
1997ChevroletK25006.5LV8DIESELN/A
1997ChevroletK2500 SuburbanDIESELN/A
1997ChevroletK2500 Suburban6.5LV8DIESELN/A
1997ChevroletK3500DIESELN/A
1997ChevroletK35006.5LV8DIESELN/A
1997ChevroletP306.5LV8N/A
1997ChevroletP306.5LV8DIESELN/A
1997ChevroletTahoe6.5LV8DIESELN/A
1997GMCC15006.5LV8DIESELN/A
1997GMCC1500 Suburban6.5LV8N/A
1997GMCC1500 Suburban6.5LV8DIESELN/A
1997GMCC25006.5LV8N/A
1997GMCC25006.5LV8DIESELN/A
1997GMCC2500 Suburban6.5LV8N/A
1997GMCC2500 Suburban6.5LV8DIESELN/A
1997GMCC3500DIESELN/A
1997GMCC35006.5LV8DIESELN/A
1997GMCK15006.5LV8DIESELN/A
1997GMCK1500 Suburban6.5LV8N/A
1997GMCK1500 Suburban6.5LV8DIESELN/A
1997GMCK2500DIESELN/A
1997GMCK25006.5LV8DIESELN/A
1997GMCK2500 Suburban6.5LV8N/A
1997GMCK2500 Suburban6.5LV8DIESELN/A
1997GMCK35006.5LV8N/A
1997GMCK35006.5LV8DIESELN/A
1997GMCP35006.5LV8N/A
1997GMCP35006.5LV8DIESELN/A
1997GMCSavana 25006.5LV8N/A
1997GMCSavana 25006.5LV8DIESELN/A
1997GMCSavana 3500DIESELN/A
1997GMCSavana 35006.5LV8DIESELN/A
1997GMCYukonN/A
1997GMCYukon6.5LV8DIESELN/A
1997OldsmobileLSS3.8LV6N/AOE No. 16009886
1997PontiacBonneville3.8LV6N/A
1997PontiacGrand Prix3.8LV6N/A
1996BuickPark AvenueN/A
1996BuickRivieraN/A
1996ChevroletC15006.5LV8DIESELN/A
1996ChevroletC1500 Suburban6.5LV8N/A
1996ChevroletC1500 Suburban6.5LV8DIESELN/A
1996ChevroletC25006.5LV8N/A
1996ChevroletC25006.5LV8DIESELN/A
1996ChevroletC2500 Suburban6.5LV8DIESELN/A
1996ChevroletC3500DIESELN/A
1996ChevroletC35006.5LV8DIESELN/A
1996ChevroletExpress 25006.5LV8N/A
1996ChevroletExpress 35006.5LV8N/A
1996ChevroletK1500DIESELN/A
1996ChevroletK15006.5LV8DIESELN/A
1996ChevroletK1500 SuburbanDIESELN/A
1996ChevroletK1500 Suburban6.5LV8DIESELN/A
1996ChevroletK2500DIESELN/A
1996ChevroletK25006.5LV8DIESELN/A
1996ChevroletK2500 SuburbanDIESELN/A
1996ChevroletK2500 Suburban6.5LV8DIESELN/A
1996ChevroletK3500DIESELN/A
1996ChevroletK35006.5LV8DIESELN/A
1996ChevroletP306.5LV8N/A
1996ChevroletP306.5LV8DIESELN/A
1996ChevroletTahoe6.5LV8DIESELN/A
1996GMCC15006.5LV8DIESELN/A
1996GMCC1500 Suburban6.5LV8N/A
1996GMCC1500 Suburban6.5LV8DIESELN/A
1996GMCC25006.5LV8N/A
1996GMCC25006.5LV8DIESELN/A
1996GMCC2500 Suburban6.5LV8N/A
1996GMCC2500 Suburban6.5LV8DIESELN/A
1996GMCC3500DIESELN/A
1996GMCC35006.5LV8DIESELN/A
1996GMCK15006.5LV8N/A
1996GMCK15006.5LV8DIESELN/A
1996GMCK1500 Suburban6.5LV8N/A
1996GMCK1500 Suburban6.5LV8DIESELN/A
1996GMCK2500DIESELN/A
1996GMCK25006.5LV8DIESELN/A
1996GMCK2500 Suburban6.5LV8N/A
1996GMCK2500 Suburban6.5LV8DIESELN/A
1996GMCK35006.5LV8N/A
1996GMCK35006.5LV8DIESELN/A
1996GMCSavana 25006.5LV8DIESELN/A
1996GMCSavana 35006.5LV8DIESELN/A
1996GMCYukonN/A
1996GMCYukon6.5LV8DIESELN/A
1996OldsmobileLSS3.8LV6N/AOE No. 16009886
1996PontiacBonneville3.8LV6N/A
1995ChevroletC15006.5LV8DIESELN/A
1995ChevroletC1500 SuburbanDIESELN/A
1995ChevroletC1500 Suburban6.5LV8DIESELN/A
1995ChevroletC25006.5LV8DIESELN/A
1995ChevroletC2500 Suburban6.5LV8DIESELN/A
1995ChevroletC35006.5LV8DIESELN/A
1995ChevroletK1500DIESELN/A
1995ChevroletK15006.5LV8DIESELN/A
1995ChevroletK1500 SuburbanDIESELN/A
1995ChevroletK1500 Suburban6.5LV8DIESELN/A
1995ChevroletK2500DIESELN/A
1995ChevroletK25006.5LV8DIESELN/A
1995ChevroletK2500 SuburbanDIESELN/A
1995ChevroletK2500 Suburban6.5LV8DIESELN/A
1995ChevroletK3500DIESELN/A
1995ChevroletK35006.5LV8DIESELN/A
1995ChevroletP306.5LV8N/A
1995ChevroletP306.5LV8DIESELN/A
1995ChevroletTahoeDIESELN/A
1995ChevroletTahoe6.5LV8DIESELN/A
1995GMCC15006.5LV8DIESELN/A
1995GMCC1500 SuburbanDIESELN/A
1995GMCC1500 Suburban6.5LV8DIESELN/A
1995GMCC25006.5LV8DIESELN/A
1995GMCC2500 SuburbanDIESELN/A
1995GMCC2500 Suburban6.5LV8DIESELN/A
1995GMCC35006.5LV8DIESELN/A
1995GMCK1500DIESELN/A
1995GMCK15006.5LV8DIESELN/A
1995GMCK1500 SuburbanDIESELN/A
1995GMCK1500 Suburban6.5LV8DIESELN/A
1995GMCK2500DIESELN/A
1995GMCK25006.5LV8DIESELN/A
1995GMCK2500 Suburban6.5LV8N/A
1995GMCK2500 Suburban6.5LV8DIESELN/A
1995GMCK35006.5LV8N/A
1995GMCK35006.5LV8DIESELN/A
1995GMCP3500DIESELN/A
1995GMCYukonN/A
1995GMCYukon6.5LV8DIESELN/A
1995Oldsmobile88N/A
1995PontiacBonneville3.8LV6N/A
1994ChevroletBlazerDIESELN/A
1994ChevroletBlazer6.5LV8DIESELN/A
1994ChevroletC15006.5LV8DIESELN/A
1994ChevroletC25006.5LV8DIESELN/A
1994ChevroletC2500 Suburban6.5LV8DIESELN/A
1994ChevroletC35006.5LV8DIESELN/A
1994ChevroletK1500DIESELN/A
1994ChevroletK15006.5LV8DIESELN/A
1994ChevroletK2500DIESELN/A
1994ChevroletK25006.5LV8DIESELN/A
1994ChevroletK2500 SuburbanDIESELN/A
1994ChevroletK2500 Suburban6.5LV8DIESELN/A
1994ChevroletK3500DIESELN/A
1994ChevroletK35006.5LV8DIESELN/A
1994ChevroletP306.5LV8N/A
1994ChevroletP306.5LV8DIESELN/A
1994GMCC15006.5LV8DIESELN/A
1994GMCC25006.5LV8DIESELN/A
1994GMCC2500 SuburbanDIESELN/A
1994GMCC2500 Suburban6.5LV8DIESELN/A
1994GMCC35006.5LV8DIESELN/A
1994GMCK1500DIESELN/A
1994GMCK15006.5LV8DIESELN/A
1994GMCK2500DIESELN/A
1994GMCK25006.5LV8DIESELN/A
1994GMCK2500 Suburban6.5LV8N/A
1994GMCK2500 Suburban6.5LV8DIESELN/A
1994GMCK35006.5LV8N/A
1994GMCK35006.5LV8DIESELN/A
1994GMCP3500DIESELN/A
1994GMCYukonN/A
1994GMCYukon6.5LV8DIESELN/A
1994PontiacBonneville3.8LV6N/A
1993PontiacBonneville3.8LV6N/A
1992IsuzuImpulse1.6LL4N/A
1992PontiacBonneville3.8LV6N/A
1991GMCP35004.3LV6N/A
1991IsuzuImpulse1.6LL4N/A
1990PontiacGrand Prix3.1LV6N/A
1990PontiacSunbirdN/A
1989GeoSpectrum1.5LL4N/A
1989IsuzuI-MarkN/A
1989PontiacGrand Am2.0LL4N/A
1989PontiacGrand Prix3.1LV6N/A
1989PontiacSunbirdN/A
1988ChevroletSpectrum1.5LL4N/A
1988IsuzuI-MarkN/A
1988PontiacGrand Am2.0LL4N/A
1988PontiacSunbirdN/A
1988PontiacSunburstN/A
1987BuickRegal3.8LV6N/A
1987BuickSkyhawkN/A
1987ChevroletSpectrum1.5LL4N/A
1987IsuzuI-MarkN/A
1987PontiacGrand Am2.0LL4N/A
1987PontiacSunbirdN/A
1987PontiacSunburstN/A
1986BuickRegal3.8LV6N/A
1986BuickSkyhawkN/A
1986PontiacSunbirdN/A
1985BuickRegal3.8LV6N/A
1985BuickRiviera3.8LV6N/A
1985BuickSkyhawkN/A
1985PontiacJ2000 SunbirdN/A
1984BuickRegal3.8LV6N/A
1984BuickRiviera3.8LV6N/A
1984BuickSkyhawk1.8LL4N/A
1983BuickRegal3.8LV6N/A
1983BuickRiviera3.8LV6N/A
1982BuickRegal3.8LV6N/A
1982BuickRiviera3.8LV6N/A
1981BuickRegal3.8LV6N/A
1981BuickRiviera3.8LV6N/A
1981ChevroletMonte Carlo3.8LV6N/A
1981PontiacFirebird4.9LV8N/A
1980BuickCentury3.8LV6N/A
1980BuickLeSabreN/A
1980BuickRegal3.8LV6N/A
1980BuickRiviera3.8LV6N/A
1980ChevroletMonte Carlo3.8LV6N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

12569241145-40416009886180032-16865225-10082MAP00785S115372-151274413EC6001ECE1103MAPA35MP125PS10000-11B1V95720041

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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