Powertrain Management: Application and ID

ENGINE VIN CODE [1]
FEDERAL EMISSIONS EQUIPPED V
CALIFORNIA EMISSIONS EQUIPPED W

ENGINE DESIGNATION CODE [2] ABH

ENGINE CONFIGURATION [3] 90° V-8

DISPLACEMENT 4.2L (4172cc/254.5ci)

COMPUTER SYSTEM [4] Bosch Motronic M2.4.1

FUEL SYSTEM [5] Sequential Multi-Point Fuel Injection

IGNITION SYSTEM [6] Dual Coil Mapped Electronic Ignition

[1] 5th digit of Vehicle Identification Number (VIN). VIN plate mounted atop drivers side instrument panel, visible through windshield lower left corner.
[2] Engine code stamped on left side of engine block where cyl. head meets the block, just above hydraulic pump.
[3] DOHC (4 cams) 32-valve (4 valves per cyl.), 280 HP.
[4] Bosch Motronic Engine Management System (version 2.4.1) with OBD. System uses single control unit for both fuel and ignition control.
[5] Fuel System uses 4-hole 2-spray solenoid-type injectors, oxygen sensor feedback, start and idle speed control, after start and acceleration enrichment, deceleration fuel shut-off.
[6] Transistorized Coil Ignition System, Coil Power Stage, Hall sender and cylinder selective Knock Control.