How Does the Exhaust Gas Recirculation System Work and How Do You Test and Replace EGR Valve on Pontiac Fiero?

One of the major emissions control strategies is the Exhaust Gas Recirculation (EGR) system which is to reduce NOX emissions through reduced combustion temperatures through the EGR valve recirculates exhaust gas to combustion chamber. The EGR valve depends on either ported or full manifold vacuum and opens during warm engine operation and engine idle speed and above, and with changes in vacuum and back-pressure on the exhaust determines the amount of recirculating gas. There are three types of EGR valves: positive backpressure, negative backpressure, ported vacuum-all are different and regulated in various ways. The positive backpressure valve includes a vacuum Bleed and the negative backpressure valve varies exhaust gas flow depending on the manifold vacuum and the backpressure of the exhaust system. This valve is ported directly to the throttle so that its operation of recirculation depends on the opening of the throttle. In the case of ECM controlled valves, there is a diaphragm which provides the means by which the exhaust gases are drawn into the intake manifold, while there is a vacuum solenoid that uses pulse width modulations to control the of the recirculation of gases. Every EGR valve is assigned a serial number which is imprinted on the valve body to show what type of valve it is. Regarding non-ECM-controlled valves check for looseness, pressure, and vacuum signals, and check movement of the diaphragm. In the tests done for ECM-controlled valves, solenoid vacuum harness is disconnected and movement of the valve is witnessed under different circumstances. Some of the components require the disconnection of the hoses, the removal of the valve and there has to be adequate cleaning of the valve and passages to avoid the buildup of deposits that hampers the working of the component. Lastly the new components the torque specification and the connectivity between components have to be strictly followed.

Genuine Pontiac EGR Valve

Emissions EGR Valve

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113 EGR Valves found

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Pontiac Valve,EGR
Part Number: 12633889
$136.34 MSRP: $278.14
You Save: $141.80 (51%)
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Product Specifications
- Other Name: VALVE, Emission Control System; EGR Valve
- Replaces: 12581876, 12565309, 12613270, 24508966, 12573722
Fits the following Pontiac Models:
- Aztek | 2001-2004 | AZTEK, GT AWD | 6 Cyl 3.4L
- Grand Am | 2000-2005 | GT 2 DOOR, GT 2 DOOR COUPE, GT 4 DOOR, GT1 2 DOOR, GT1 2 DOOR COUPE, GT1 4 DOOR, SE 2 DOOR, SE 4 DOOR, SE 4 DOOR SEDAN, SE1 2 DOOR, SE1 4 DOOR | 6 Cyl 3.4L
- Grand Prix | 2000-2003 | SE 4 DOOR | 6 Cyl 3.1L
- Montana | 2000-2006 | 2/SLIDING DOORS, AWD EXT 2/SLIDING DOORS, CROSSOVER SPORT VAN, CROSSOVER SPORT VAN EXTENDED, EXT 2/SLIDING DOORS, MONTANA, SPECIAL 2/SLIDING DOORS | 6 Cyl 3.4L, 6 Cyl 3.5L
- Torrent | 2006-2009 | GT SUV AWD, GT SUV FWD, SUV AWD, SUV FWD | 6 Cyl 3.4L
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Pontiac Valve Kit,EGR
Part Number: 19210659
$89.32 MSRP: $182.19
You Save: $92.87 (51%)
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Product Specifications
- Other Name: VALVE, Emission Control System; EGR Valve
- Replaces: 17112685, 17113382
Fits the following Pontiac Models:
- Firebird | 1995-1997 | 2 DOOR, CONVERTIBLE | 8 Cyl 5.7L
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Pontiac Valve Asm,EGR
Part Number: 89060435
$101.14 MSRP: $316.92
You Save: $215.78 (69%)
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Product Specifications
- Other Name: VALVE, Emission Control System; EGR Valve
- Replaces: 88894013, 89017647, 12575313
Fits the following Pontiac Models:
- Grand Prix | 2006-2008 | 4 DOOR, GT 4 DOOR, GTP 4 DOOR, GXP 4 DOOR | 6 Cyl 3.8L
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Pontiac Valve,EGR
Part Number: 12578036
$226.79 MSRP: $427.91
You Save: $201.12 (47%)
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Product Specifications
- Other Name: VALVE, Emission Control System; EGR Valve
- Replaces: 17096306, 17113712
Fits the following Pontiac Models:
- Grand Am | 1996-1999 | GT 2 DOOR, GT 4 DOOR, SE 2 DOOR, SE 4 DOOR | 4 Cyl 2.4L
- Sunfire | 1996-1998 | 2 DOOR, 4 DOOR, CONVERTIBLE, GT 2 DOOR | 4 Cyl 2.2L, 4 Cyl 2.4L
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Pontiac Valve,EGR
Part Number: 25183476
$96.82 MSRP: $303.40
You Save: $206.58 (69%)
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Product Specifications
- Other Name: VALVE, Emission Control System; EGR Valve
- Replaces: 25182126, 96386735
Fits the following Pontiac Models:
- G3 | 2010 | 4 DOOR NOTCHBACK/SEDAN, BASE 4 DOOR NOTCHBACK/SEDAN, MID LEVEL 4 DOOR NOTCHBACK, UP LEVEL 4 DOOR NOTCHBACK | 4 Cyl 1.6L
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Pontiac Valve Kit,EGR
Part Number: 19210658
$64.45 MSRP: $201.99
You Save: $137.54 (69%)
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Product Specifications
- Other Name: VALVE, Emission Control System; EGR Valve
- Replaces: 17112684, 17113381
Fits the following Pontiac Models:
- Firebird | 1993-1997 | 2 DOOR, CONVERTIBLE | 8 Cyl 5.7L
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Pontiac Valve Asm,Evap Emission Canister Purge Solenoid
Part Number: 1997296
$10.53 MSRP: $18.88
You Save: $8.35 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: VALVE, Fuel Tank Evaporator/Purge Control
Fits the following Pontiac Models:
- Grand Prix | 1993 | 2 DOOR, 4 DOOR, GT 2 DOOR, LE 4 DOOR, SE 2 DOOR, SE 4 DOOR, STE 4 DOOR | 6 Cyl 3.1L
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Pontiac Valve Assembly, Evap Emission Canister Purge Solenoid
Part Number: 1997289
$42.12 MSRP: $147.87
You Save: $105.75 (72%)
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Product Specifications
- Other Name: VALVE, Fuel Tank Evaporator/Purge Control; Purge Control Valve, Purge Valve, Solenoid Valve
Fits the following Pontiac Models:
- Bonneville | 2000-2003 | SE 4 DOOR, SSEI 4 DOOR | 6 Cyl 3.8L
- Grand Prix | 1998-2003 | GT 2 DOOR, GT 4 DOOR, GTP 2 DOOR, GTP 4 DOOR, SE 4 DOOR | 6 Cyl 3.8L
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Pontiac Valve Kit,EGR
Part Number: 89018175
$191.21 MSRP: $390.06
You Save: $198.85 (51%)
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Product Specifications
- Other Name: VALVE KIT, Emission Control System; EGR Pipe, Pipe, Tube
Fits the following Pontiac Models:
- G6 | 2005-2006 | GT 2 DOOR CONVERTIBLE, GT 2 DOOR NOTCHBACK, GT 4 DOOR NOTCHBACK, GTP 2 DOOR CONVERTIBL, GTP 2 DOOR NOTCHBACK, SE 4 DOOR NOTCHBACK, SE1 4 DOOR NOTCHBACK | 6 Cyl 3.5L
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Pontiac Solenoid Assembly, Egr Control Valve Relay
Part Number: 1997223
$38.04 MSRP: $119.21
You Save: $81.17 (69%)
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Product Specifications
- Other Name: SOLENOID, Emission Control System; Solenoid, Vacuum Control Solenoid
Fits the following Pontiac Models:
- Firebird | 1993-1997 | 2 DOOR, CONVERTIBLE | 8 Cyl 5.7L
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Pontiac Valve Kit,EGR
Part Number: 19210674
$69.20 MSRP: $141.14
You Save: $71.94 (51%)
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Product Specifications
- Other Name: VALVE, Emission Control System; EGR Valve
- Replaces: 17111665, 17113456, 17112240
Fits the following Pontiac Models:
- Firebird | 1990-1992 | 2 DOOR, CONVERTIBLE | 8 Cyl 5.0L
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Pontiac Valve Kit,EGR
Part Number: 19210684
$78.80 MSRP: $160.73
You Save: $81.93 (51%)
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Product Specifications
- Other Name: VALVE, Emission Control System; EGR Valve
- Replaces: 17110788, 17113459, 17111923, 17111922
Fits the following Pontiac Models:
- Firebird | 1985-1989 | 2 DOOR | 8 Cyl 5.0L
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Pontiac Valve Assembly, Heater & A/C Control Vacuum Control Solenoid
Part Number: 1997163
$17.21 MSRP: $32.86
You Save: $15.65 (48%)
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Product Specifications
- Other Name: VALVE, A/C Control
Fits the following Pontiac Models:
- Grand Prix | 1987 | 2 DOOR, BROUGHAM 2 DOOR, LE 2 DOOR | 6 Cyl 4.3L
- Trans Sport | 1992-1996 | MPV, TRANS SPORT, TRUCK | 6 Cyl 3.1L, 6 Cyl 3.4L, 6 Cyl 3.8L
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Pontiac Solenoid Asm,EGR Control Valve Relay
Part Number: 1997674
$26.22 MSRP: $49.14
You Save: $22.92 (47%)
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Product Specifications
- Other Name: SOLENOID, Emission Control System; EGR Solenoid
Fits the following Pontiac Models:
- 6000 | 1984-1986 | 2 DOOR, 4 DOOR, LE 2 DOOR, LE 4 DOOR, LE STATION WAGON, SE 4 DOOR, SE STATION WAGON, STATION WAGON, STE 2 DOOR, STE 4 DOOR | 6 Cyl 2.8L
- Phoenix | 1984 | 2 DOOR, 4 DOOR, LJ 2 DOOR, LJ 4 DOOR | 6 Cyl 2.8L
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Pontiac Valve Kit,EGR
Part Number: 19210681
$60.66 MSRP: $190.07
You Save: $129.41 (69%)
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Product Specifications
- Other Name: VALVE, Emission Control System; EGR Valve
- Replaces: 17110476, 17068159, 17111299, 17068196, 17110475, 17066253, 17079818, 17068164, 17113433, 17110477
Fits the following Pontiac Models:
- Bonneville | 1982-1986 | 2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, LE 2 DOOR, STATION WAGON | 8 Cyl 5.0L
- Firebird | 1982-1987 | 2 DOOR | 8 Cyl 5.0L
- Grand Prix | 1982-1987 | 2 DOOR, 4 DOOR, BROUGHAM 2 DOOR, LE 2 DOOR, STATION WAGON | 8 Cyl 5.0L
- Parisienne | 1983-1986 | 4 DOOR, BROUGHAM, STATION WAGON | 8 Cyl 5.0L
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Pontiac Valve Asm, EGR
Part Number: 17112231
$83.16 MSRP: $155.84
You Save: $72.68 (47%)
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Product Specifications
- Other Name: VALVE, Emission Control System; EGR Valve
Fits the following Pontiac Models:
- Trans Sport | 1990-1992 | TRANS SPORT | 6 Cyl 3.1L
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Pontiac Solenoid Assembly, Evap Emission Canister
Part Number: 10382401
$42.67 MSRP: $133.69
You Save: $91.02 (69%)
Ships in 1 Business Day
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Product Specifications
- Other Name: SOLENOID, Fuel Tank Evaporator/Purge Control
Fits the following Pontiac Models:
- Montana | 2005-2009 | CROSSOVER SPORT VAN | 6 Cyl 3.5L, 6 Cyl 3.9L, 6 Cyl 3.9L Flex
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Pontiac Valve Asm,EGR
Part Number: 17113477
$51.60 MSRP: $96.70
You Save: $45.10 (47%)
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Product Specifications
- Other Name: VALVE, Emission Control System
- Replaces: 17079682, 17079681
Fits the following Pontiac Models:
- J2000 | 1983-1984 | 2 DOOR NOTCHBACK, 2 DOOR PLAINBACK HATCHBACK, 4 DOOR, LE 2 DOOR NOTCHBACK, LE 4 DOOR, LE STATION WAGON, SE 2 DOOR, SE 4 DOOR, SE HATCHBACK, STATION WAGON | 4 Cyl 2.0L
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Pontiac Valve Kit,EGR
Part Number: 19210666
$80.66 MSRP: $164.53
You Save: $83.87 (51%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: VALVE, Emission Control System; EGR Valve
- Replaces: 17113496, 17112007
Fits the following Pontiac Models:
- Firebird | 1988-1992 | 2 DOOR, CONVERTIBLE | 8 Cyl 5.0L
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Pontiac Solenoid Assembly, Egr Control Valve Relay
Part Number: 1997173
Product Specifications
- Other Name: SOLENOID, Emission Control System; EGR Valve Solenoid, Solenoid
Fits the following Pontiac Models:
- Firebird | 1988-1992 | 2 DOOR, CONVERTIBLE | 8 Cyl 5.0L

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Pontiac EGR Valve

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Pontiac EGR Valve Parts Questions & Experts Answers

Valve Kit,EGR
19210661
Q: How Does the Exhaust Gas Recirculation System Work and How Do You Test and Replace EGR Valve on Pontiac Fiero?
A: One of the major emissions control strategies is the Exhaust Gas Recirculation (EGR) system which is to reduce NOX emissions through reduced combustion temperatures through the EGR valve recirculates exhaust gas to combustion chamber. The EGR valve depends on either ported or full manifold vacuum and opens during warm engine operation and engine idle speed and above, and with changes in vacuum and back-pressure on the exhaust determines the amount of recirculating gas. There are three types of EGR valves: positive backpressure, negative backpressure, ported vacuum-all are different and regulated in various ways. The positive backpressure valve includes a vacuum Bleed and the negative backpressure valve varies exhaust gas flow depending on the manifold vacuum and the backpressure of the exhaust system. This valve is ported directly to the throttle so that its operation of recirculation depends on the opening of the throttle. In the case of ECM controlled valves, there is a diaphragm which provides the means by which the exhaust gases are drawn into the intake manifold, while there is a vacuum solenoid that uses pulse width modulations to control the of the recirculation of gases. Every EGR valve is assigned a serial number which is imprinted on the valve body to show what type of valve it is. Regarding non-ECM-controlled valves check for looseness, pressure, and vacuum signals, and check movement of the diaphragm. In the tests done for ECM-controlled valves, solenoid vacuum harness is disconnected and movement of the valve is witnessed under different circumstances. Some of the components require the disconnection of the hoses, the removal of the valve and there has to be adequate cleaning of the valve and passages to avoid the buildup of deposits that hampers the working of the component. Lastly the new components the torque specification and the connectivity between components have to be strictly followed.