Toyota Engine Free Repair Manuals PDF

Marking of Toyota Engines

  • The first numeric characters indicate the engine block generation
  • The following one or two letters indicate the engine family
  • Suffixes (through a dash) determine engine features
  • Next, after the letters indicate the ordinal seven-digit number of the engine in a given generation of the family.

A Changing valve timing system Valvematic

B Two SU-carburettors (after 2000 - indicates the use of ethanol as fuel E85)

C with a California emission control system

CI with centralized single-point fuel injection system with electronic control

D Two downflow carburettors

E Electronic fuel injection

F Valve gear DOHC with narrow "economical" phases

G DOHC gas distribution mechanism with wide "productive" phases

H High compression ratio or high pressure boost

I Centralized fuel injection

J Autochoke

K Atkinson cycle (not hydride)

L Cross-section of the engine

M for the Philippines market

N engine on compressed natural gas

P engine on liquefied hydrocarbon gas

R Low compression ratio (for fuels with an octane rating of 87 and below)

S Vortex mixing

SE Direct injection of gasoline

T Turbocharger

U With catalytic converter according to Japanese standards

V Common Rail Diesel Injection

X Hybrid engine with Atkinson cycle

Z Supercharged (supercharged with mechanical drive)

Examples of notation:

  • 4A-GE

4 - generation engines of the fourth engine family

A - engine family

G - gas distribution mechanism DOHC with wide "productive" phases

E - with electronic fuel injection;

  • 22R-TEC

22 - engine generation in the R engine family

R - engine family

T - turbocharged

E - Electronic fuel injection

C - with California emission control system

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