2.8L V6 - Revision history

Cliff at 13:07, 12 July 2026

2026-07-12T13:07:59Z

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 Availability varied by model year, trim level, and equipment.
 == Specifications ==
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 * [[Engine]]
 * [[GM 60-degree V6]]
 * [[Fuel system]]
 * [[Fuel pressure test]]

2026-07-11T21:16:05Z

Location

← Older revision		Revision as of 21:16, 11 July 2026
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	== Location ==		== Location ==

	~~{{Image wanted~~\|~~Photo or diagram showing the~~ 2.8L V6 installed in a Fiero engine bay. ~~Useful images would include the upper intake plenum~~, ~~distributor, ignition coil, fuel rail, exhaust manifolds, and accessory layout~~.}}		[[File:2.8L V6 (1).jpg\|thumb\|right\|2.8L V6 installed in a Pontiac Fiero engine bay. Photo by Flickr user artistmac, used under CC BY-SA 2.0.]]

	The 2.8L V6 is mounted transversely behind the passenger compartment in the Fiero engine bay.		The 2.8L V6 is mounted transversely behind the passenger compartment in the Fiero engine bay.

2026-07-11T20:56:14Z

Specifications

← Older revision		Revision as of 20:56, 11 July 2026
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	Horsepower, torque, compression ratio, and other specifications may be listed slightly differently depending on source, model year, emissions configuration, transmission, or publication. For restoration, concours, or factory-reference work, verify specifications against the correct model-year factory documentation.		Horsepower, torque, compression ratio, and other specifications may be listed slightly differently depending on source, model year, emissions configuration, transmission, or publication. For restoration, concours, or factory-reference work, verify specifications against the correct model-year factory documentation.


	== RPO code ==		== RPO code ==

2026-07-11T20:56:01Z

← Older revision		Revision as of 20:56, 11 July 2026
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	Horsepower, torque, compression ratio, and other specifications may be listed slightly differently depending on source, model year, emissions configuration, transmission, or publication. For restoration, concours, or factory-reference work, verify specifications against the correct model-year factory documentation.		Horsepower, torque, compression ratio, and other specifications may be listed slightly differently depending on source, model year, emissions configuration, transmission, or publication. For restoration, concours, or factory-reference work, verify specifications against the correct model-year factory documentation.


			== RPO code ==

			The Fiero 2.8L V6 is commonly associated with RPO code '''L44'''.

			RPO codes are factory option codes used to identify equipment installed on a vehicle. For Fiero-specific option identification, see [[RPO codes]].

	== Engine family ==		== Engine family ==

2026-07-11T20:54:06Z

Specifications

← Older revision		Revision as of 20:54, 11 July 2026
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	\| GT, SE, Formula, and other V6-equipped models depending on year		\| GT, SE, Formula, and other V6-equipped models depending on year
	\|}		\|}

			Horsepower, torque, compression ratio, and other specifications may be listed slightly differently depending on source, model year, emissions configuration, transmission, or publication. For restoration, concours, or factory-reference work, verify specifications against the correct model-year factory documentation.

	== Engine family ==		== Engine family ==

2026-07-11T20:53:19Z

Specifications

← Older revision		Revision as of 20:53, 11 July 2026
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	{\| class="wikitable"		{\| class="wikitable"
	! Specification		! Specification
	! 2.8L V6		! Fiero 2.8L V6
	\|-		\|-
	\| Engine family		\| Engine family
	\| GM 60-degree V6		\| GM 60-degree V6
			\|-
			\| RPO code
			\| L44
	\|-		\|-
	\| Displacement		\| Displacement
	\| 2.8 liters		\| 2.8 liters / 173 cubic inches
	\|-		\|-
	\| Configuration		\| Configuration
	\| 60-degree V6		\| 60-degree V6
	\|-		\|-
	\| ~~Fuel system~~		\| Bore
	\| ~~Multi-port fuel injection~~		\| 3.50 in / 88.9 mm
	\|-		\|-
	\| ~~Factory horsepower~~		\| Stroke
	\| ~~Commonly listed as 140 hp~~		\| 2.99 in / 76.0 mm
	\|-		\|-
	\| ~~Factory torque~~		\| Compression ratio
	\| Commonly listed as ~~160 lb-ft~~		\| Commonly listed as 8.9:1
	\|-		\|-
	\| Valvetrain		\| Valvetrain
	\| Overhead valve / pushrod		\| Overhead valve / pushrod
			\|-
			\| Valves
			\| 2 valves per cylinder
			\|-
			\| Fuel system
			\| Multi-port fuel injection
	\|-		\|-
	\| Ignition		\| Ignition
Line 66:		Line 75:
	\| Firing order		\| Firing order
	\| 1-2-3-4-5-6		\| 1-2-3-4-5-6
			\|-
			\| Distributor rotation
			\| Clockwise
			\|-
			\| Factory horsepower
			\| Commonly listed as 140 hp at 5,200 rpm
			\|-
			\| Factory torque
			\| Commonly listed as 160 lb-ft at 3,600 rpm
	\|-		\|-
	\| Fiero model years		\| Fiero model years

2026-07-11T20:51:23Z

Firing order

← Older revision		Revision as of 20:51, 11 July 2026
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	== Firing order ==		== Firing order ==

			[[File:Fiero 2.8L V6 firing order.png\|thumb\|right\|350px\|Cylinder layout, distributor rotation, and firing order for the Fiero 2.8L V6.]]

	The Fiero 2.8L V6 firing order is:		The Fiero 2.8L V6 firing order is:

	'''1-2-3-4-5-6'''		'''1-2-3-4-5-6'''

	~~[[File:Fiero 2.8L V6 firing order.png\|center\|500px\|Cylinder layout, distributor rotation, and firing order for the Fiero 2.8L V6.]]~~

	Correct spark plug wire routing is important. Incorrect wire order can cause a no-start condition, rough running, backfiring, misfire, poor acceleration, or other ignition-related symptoms.		Correct spark plug wire routing is important. Incorrect wire order can cause a no-start condition, rough running, backfiring, misfire, poor acceleration, or other ignition-related symptoms.

2026-07-11T20:48:44Z

Firing order

← Older revision		Revision as of 20:48, 11 July 2026
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	'''1-2-3-4-5-6'''		'''1-2-3-4-5-6'''

	[[File:Fiero 2.8L V6 firing order.png\|~~thumb~~\|~~right~~\|Cylinder layout, distributor rotation, and firing order for the Fiero 2.8L V6.]]		[[File:Fiero 2.8L V6 firing order.png\|center\|500px\|Cylinder layout, distributor rotation, and firing order for the Fiero 2.8L V6.]]

	Correct spark plug wire routing is important. Incorrect wire order can cause a no-start condition, rough running, backfiring, misfire, poor acceleration, or other ignition-related symptoms.		Correct spark plug wire routing is important. Incorrect wire order can cause a no-start condition, rough running, backfiring, misfire, poor acceleration, or other ignition-related symptoms.

2026-07-11T20:47:39Z

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 * [[Code 42]]
 * [[No-start diagnosis]]
 == Intake system ==

2026-07-11T20:42:23Z

← Older revision		Revision as of 20:42, 11 July 2026
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	\| Ignition		\| Ignition
	\| Distributor-based ignition with ECM-controlled electronic spark timing		\| Distributor-based ignition with ECM-controlled electronic spark timing
			\|-
			\| Firing order
			\| 1-2-3-4-5-6
	\|-		\|-
	\| Fiero model years		\| Fiero model years