Toyota 1MZ-FE 3.0 Engine Service & Repair Manual

TECHNICAL CHARACTERISTICS OF THE Engine TOYOTA 1MZ-FE 3.0 L

Powertrain version without VVT-i

Exact volume 2994 cm³

Power supply system MPI injector

Internal combustion engine power 168 - 194 hp

Torque 248 - 275 Nm

Cylinder block aluminum V6

Block head aluminum 24v

Cylinder diameter 87.5 mm

Piston stroke 83 mm

Compression ratio 10.5

No internal combustion engine features

Hydro compensators no

Timing belt

Phase regulator no

Turbocharging no

What oil to pour 4.7 liters 5W-30

Fuel type AI-92

Environmental class EURO 2/3

Approximate resource 450,000 km

Powertrain version with VVT-i

Exact volume 2994 cm³

Power supply system MPI injector

Internal combustion engine power 210 - 220 h.p.

Torque 301 - 328 Nm

Cylinder block aluminum V6

Block head aluminum 24v

Cylinder diameter 87.5 mm

Piston stroke 83 mm

Compression ratio 10.5

Features of internal combustion engine electronic choke

Hydro compensators no

Timing belt

Phase regulator at the inlet VVT-i

Turbocharging no

What oil to pour 4.7 liters 5W-30

Fuel type AI-95

Environmental class EURO 3/4

Approximate resource 400,000 km


FUEL CONSUMPTION 1MZ-FE

Without VVT-i, for example, Toyota Camry 2001 with automatic transmission:

 

City

15.7 liters

Track

8.3 liters

Mixed

11 liters

With VVT-i using the example of a 2001 Lexus ES 300 with an automatic transmission:

 

City

11.2 liters

Track

8.1 liters

Mixed

9.7 liters

WHAT CARS WERE THE 1MZ-FE ENGINE

Camry XV10

1993 - 1996

Camry XV20

1996 - 2001

Camry XV30

2001 - 2006

Avalon XX10

1994 -1999

Avalon XX20

1999 -2004

Sienna XL10

1997 - 2002

Mark II Wagon X100

1997 - 2001

Solara XV20

1999 - 2003

Estima XR30

2000 - 2005

Alphard AH10

2002 - 2008

Highlander XU20

2000 - 2003

Lexus

ES 300 XV10

1993 - 1996

ES 300 XV20

1996 - 2001

ES 300 XV30

2001 - 2003

RX 300 XU10

1998 - 2003


 1MZ–FE ENGINE MECHANICAL Download PDF

  • DESCRIPTION
  • PREPARATION
  • TUNE-UP
  • TIMING BELT
  • CYLINDER HEAD
  • CYLINDER BLOCK
  • EXHAUST SYSTEM
  • SERVICE SPECIFICATIONS

1MZ–FE EMISSION CONTROL SYSTEMS Download PDF

  • COMPONENT LAYOUT
  • SCHEMATIC DRAWING
  • PREPARATION
  • POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM
  • EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
  • EXHAUST GAS RECIRCULATION (EGR) SYSTEM
  • THREE-WAY CATALYTIC CONVERTER (TWC) SYSTEM

1MZ–FE SFI SYSTEM Download PDF

  • SYSTEM CIRCUIT
  • OPERATION
  • PREPARATION
  • PRECAUTION
  • FUEL PUMP
  • COMPONENTS FOR REMOVAL
  • COMPONENTS FOR DISASSEMBLY
  • FUEL PUMP INSTALLATION
  • FUEL PRESSURE REGULATOR INJECTOR
  • THROTTLE BODY
  • ACOUSTIC CONTROL INDUCTION
  • CIRCUIT OPENING RELAY
  • VSV FOR FUEL PRESSURE CONTROL
  • VSV FOR EGR
  • AC IDLE-UP VALVE
  • EGR GAS TEMPERATURE SENSOR
  • OXYGEN SENSOR
  • Sub Heated Oxygen Sensor
  • FUEL CUT RPM
  • SERVICE SPECIFICATIONS

1MZ–FE Engine COOLING SYSTEM Download PDF

  • OPERATION
  • PREPARATION
  • COOLANT CHECK
  • COOLANT REPLACEMENT
  • WATER PUMP
  • RADIATOR
  • ELECTRONICALLY CONTROLLED HYDRAULIC COOLING FAN
  • Hydraulic Motor
  • Oil Cooler
  • A/C High -Pressure Switch
  • SERVICE SPECIFICATIONS

1MZ–FE Engine LUBRICATION SYSTEM Download PDF

  • OPERATION
  • PREPARATION
  • OIL AND FILTER REPLACEMENT
  • OIL PUMP

1MZ–FE Engine TROUBLESHOOTING Download PDF

  • 1MZ–FE HOW TO PROCEED WITH TROUBLESHOOTING
  • 1MZ–FE CUSTOMER PROBLEM ANALYSIS CHECK SHEET
  • 1MZ–FE DIAGNOSIS SYSTEM
  • 1MZ–FE DIAGNOSTIC TROUBLE CODE CHART (SAE Controlled)
  • 1MZ–FE FAIL-SAFE CHART
  • 1MZ–FE CHECK FOR INTERMITTENT PROBLEMS
  • 1MZ–FE BASIC INSPECTION
  • 1MZ–FE PARTS LOCATION
  • 1MZ–FE WIRING DIAGRAM
  • 1MZ–FE TERMINALS OF ECM
  • 1MZ–FE STANDARD VALUE OF ECM TERMINALS

1MZ–FE Engine CIRCUIT INSPECTION Download PDF

1MZ–FE Engine DTCP0100 Mass Air Flow Circuit Malfunction

1MZ–FE Engine DTCP0101 Mass Air Flow Circuit Range Performance

1MZ–FE Engine DTC P0110 Intake Air Temp Circuit Malfunction

1MZ–FE Engine DTC P0115 Engine Coolant Temp Circuit Malfunction

1MZ–FE Engine DTC P0116 Engine Coolant Temp Circuit Range Performance

1MZ–FE Engine DTC P0120 Throttle Position Circuit Malfunction

1MZ–FE Engine DTC P0121 Throttle Position Circuit Range Performance

1MZ–FE Engine DTC P0125 Insufficient Coolant Temp for Closed Loop Fuel Control

1MZ–FE Engine DTCP0130 P0150 Heated Oxygen Sensor Circuit Malfunction

1MZ–FE Engine DTCP0133 P0153 Heated Oxygen Sensor Circuit Slow Response (Bank 1 Sensor 1 Bank 2 Sensor 1)

1MZ–FE Engine DTCP0135 P0141 P0155 Heated Oxygen Sensor Heater

1MZ–FE Engine DTC P0136 Heated Oxygen Sensor Circuit Malfunction

1MZ–FE Engine DTC P0171 System too Lean (Fuel Trim)

1MZ–FE Engine DTC P0172 System too Rich (Fuel Trim)

1MZ–FE Engine DTC P0201 P0202 P0203 P0204 P0205 P0206 Injector

1MZ–FE Engine DTC P0300 Random Misfire Detected

1MZ–FE Engine DTC P0325 P0330 Knock Sensor Circuit Malfunction

1MZ–FE Engine DTC P0335 Crankshaft Position Sensor Circuit Malfunction

1MZ–FE Engine DTC P0336 Crankshaft Position Sensor Circuit

1MZ–FE Engine DTC P0340 Camshaft Position Sensor Circuit

1MZ–FE Engine DTC P0401 Exhaust Gas Recirculation Flow

1MZ–FE Engine DTC P0402 Exhaust Gas Recirculation Flow

1MZ–FE Engine DTC P0420 Catalyst System Efficiency Below Threshold

1MZ–FE Engine DTC P0500 Vehicle Speed Sensor Malfunction

1MZ–FE Engine DTC P0505 Idle Control System Malfunction

1MZ–FE Engine DTC P0510 Closed Throttle Position Switch Malfunction

1MZ–FE Engine DTC P1300 Igniter Circuit Malfunction

1MZ–FE Engine DTC P1500 Starter Signal Circuit Malfunction

1MZ–FE Engine DTC P1600 EMC BATT Malfunction

1MZ–FE Engine DTC P1605 Knock Control CPU Malfunction

1MZ–FE Engine DTC P1780 Park Neutral Position Switch Malfunction

1MZ–FE Engine ECM Power Source Circuit

1MZ–FE Engine AC Idle Up Circuit

1MZ–FE Engine Fuel Pump Control Circuit

1MZ–FE Engine Fuel Pressure Control VSV Circuit

1MZ–FE Engine AC Cut Control Circuit

1MZ–FE Engine IACV Control VSV Circuit

ENGINE OPERATING CONDITION – 1MZ–FE Engine Download PDF

MATRIX CHART OF PROBLEM SYMPTOMS – 1MZ–FE Engine Download PDF

LOCATION OF CONNECTORS – 1MZ–FE Engine Download PDF

DISADVANTAGES, FAILURES AND PROBLEMS OF TOYOTA 1MZ-FE

  • On long runs, he often begins to increase oil consumption.
  • The reliability of the knock sensors is rather low, they often have to be replaced.
  • Engine speed floats due to throttle valve contamination
  • Strongly triples the motor in case of failure of the VVT-i phase regulator valve
  • This power unit is very afraid of overheating, you must not let it boil
  • Drivers periodically complain about the refusal to start in severe frost
  • The motor is prone to increased carbon formation, especially in the manifolds

The need for overhaul of the engine is determined by the following criteria:

GROUP I 

the most common option (on LEXUS cars of the European market, it is accompanied by blinking or periodic flashes of the indicator (red) of the oil level in the engine, on cars of the American market this indicator is not present)

 

1. Increased oil consumption (more than 300 grams) with a mileage of 1000 km

Occurs due to the occurrence of piston rings, wear and ellipse in the engine cylinders, which leads to increased oil consumption. Topping up and controlling the oil level can be driven for a relatively long time.

 

2. Knocking on the running engine in the area of the engine block

Occurs due to wear of the connecting rod or main bearings of the crankshaft journals. It is dangerous to operate the car, as it can lead to engine seizure or connecting rod breakage and damage to the cylinder block.

 

3. Ingress of coolant into engine oil

Occurs due to damage to the gaskets of the block heads or skewing of the surface of the block heads as a result of partial overheating of the engine. It is dangerous to operate the vehicle as it can overheat the engine.

II group

1. Engine jammed

The reason: oil starvation, wear of the bearings of the crankshaft journals and overheating of the engine. Vehicle operation is not possible.

 

2. Rupture of one of the connecting rods and, accordingly, damage to the cylinder block.

The reason: oil starvation, wear of the bearings of the crankshaft journals and overheating of the engine. Vehicle operation is not possible.

 

In case of damage in group 1, as a rule, there is no need to change the crankshaft, connecting rods and pistons, in case of damage in group 2, it is imperative to change the crankshaft, damaged connecting rods and pistons. In both groups, the block may require a liner, depending on the ellipticity of each cylinder, not counting the options for block damage when the connecting rod breaks.

Below we described and photographed the repair process and made a detailed map of the use of spare parts and their cost.

Determination of the exact number of necessary spare parts and work performed can be determined after complete disassembly and troubleshooting of the engine.

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