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1999 Engine Diagnostic Parameters

Passenger Car
1.9L DOHC (LL0) SATURN Z-car (S-series cars)
1.9L SOHC (L24) SATURN Z-car (S-series cars)
2.2L (LN2) J-car
2.4L (LD9) ) with RC9 on SPID label, underhood tune-up label is XGMXV2.4026 or XGMXV2.4027, and no EGR J-car
2.4L (LD9) without RC9 on SPID label, underhood tune-up label is XGMXV2.4024 or XGMXV2.4025, and with EGR N-Alero, N-GrandAm
2.4L (LD9) ) with RC9 on SPID label, underhood tune-up label is XGMXV2.4026 or XGMXV2.4027, and no EGR N-Alero, N-Cutlass, N-GrandAm, N-Malibu
3.0L (L81) V-car Catera
3.1L (L82) W-car
3.4L (LA1) N-car, W-car
3.5L DOHC (LX5) W-Intrigue
3.8L Supercharged (L67) C-car, G-car, H-car, W-car
3.8L (L36) non-supercharged C-car, F-car, H-car, W-car
4.0 (L47) G-Aurora
4.6L (LD8, L37) Eldorado, Seville, DeVille
5.7L (LS1) F-car
5.7L (LS1) Y-car Corvette
 
Trucks
2.2L (LN2) S-truck
3.4L (LA1) U-van
4.3L (LF6 and L45) C/K-truck, S/T-truck, M/L-van, G-van Light Duty (GVW < 8500)
5.0L (L30) C/K-truck, G-van Light-Duty (GVW <8500)
5.7L (L31) C/K-truck, P-truck, G-van, Heavy Duty (>8500GVW) also medium-duty tilt-cab W-series (Isuzu NPR) <14001GVW
5.7L (L31) C/K-truck, G-van Light-Duty (GVW <8500)
6.5L Diesel (L65) C/K-truck, G-van, P-truck, OEM engine Heavy Duty (GVW >8500)
6.5L Diesel (L56) C/K-truck, Light-Duty (GVW <8500)
6.5L Diesel (L57) P-truck, Hummer H1, OEM engine Heavy-Duty (GVW >8500)
7.4L (L29) without A.I.R. C/K-truck, G-van, P-truck Heavy Duty (GVW >8500)
7.4L (L29) WITH A.I.R. C/K-truck, G-van, P-truck Heavy Duty (GVW >8500)

 




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