Service of the Infiniti QX4 since 1996 of release
1. Introduction
2. Maintenance instruction
3. Routine maintenance
3.1. Schedule of routine maintenance
3.2. Specifications
3.3. General information about settings and adjustments
3.4. Check of levels of liquids
3.5. Check of a condition of tires and pressure of their rating, rotation of wheels
3.6. Replacement of motive oil and oil filter
3.7. Check of a state and replacement of the hoses located in a motive compartment
3.8. Service of the cooling system (depletion, washing and filling)
3.9. Check, service and charging of the rechargeable battery
3.10. Check of a state and belts of the drive of auxiliary units
3.11. Replacement of spark plugs, check of a condition of VV of an electrical wiring
3.12. Replacement of the filtering air cleaner element
3.13. Check of a state and replacement of brushes of screen wipers, a clearing and adjustment snuffled supply of the washing liquid
3.14. Survey of components of a suspension bracket and steering drive, check of a condition of protective covers of power shafts
3.15. Check of the brake system
3.16. Check / adjustment of installations of turns of an idling / corner of an advancing of ignition / quality of air-fuel mix
3.17. Check of electric equipment
3.18. Check of serviceability of functioning and service of systems of heating and air conditioning
3.19. Greasing of locks, loops and emphasis
4. Engine
5. Cooling system and heating
6. Feed and control systems
7. Systems of start and charge
8. Transmission line
9. Brake system
10. Suspension bracket and steering
11. Body
12. Electric equipment
 












3-16-proverka-regulirovka-ustanovok-oborotov-kholostogo-khoda.html

3.16. Check / adjustment of installations of turns of an idling / corner of an advancing of ignition / quality of air-fuel mix

Before starting performing procedures of checks / adjustments, make sure of serviceability of a state and functioning of the following knots:

  • Battery;
  • Components of system of ignition;
  • Motive oil and cooling liquid (levels);
  • Safety locks;
  • Contact socket of an electrical wiring of ECM;
  • Vacuum hoses;
  • Inlet air path (cover of a mouth of gas station of oil, oil level measuring instrument, etc.);
  • Regulator of pressure of fuel (pressure);
  • Piston group (compression)
  • EGR valve;
  • Butterfly valve;
  • Components of system of catching of fuel evaporations (EVAP).

 PERFORMANCE ORDER

  1. On the models equipped with the air conditioning system switch off the conditioner.
  2. Transfer the AT selector lever to situation "N".
  3. When checking level of content of monoxide of carbon (SO) you enter the probe probe into an exhaust pipe not more deeply than on 40 cm.
  4. Switch off everything onboard consumers of the electric power (a headlight, the heater fan, screen wipers, heating of back glass, etc.).
  5. Bring forward wheels of the car into rectilinear situation.
  6. Start performance of checks only after a cooling system fan stop.


Function chart of conducting checks


Step 1 — the Beginning of checks

 PERFORMANCE ORDER

  1. Visually check passability of the filtering air cleaner element.
  2. Check all hoses and sleeves for existence of signs of development of leaks.
  3. Check serviceability of functioning of the EGR valve.
  4. Make sure of serviceability of a condition of contact sockets of an electrical wiring.
  5. Estimate a condition of sealing laying.
  1. Start the engine and warm up it up to the normal working temperature — the arrow of the measuring instrument of temperature on the dashboard has to come to the middle of working range of a scale.
  1. Make sure that turns of the engine make no more than 1000 a minute.
  2. Open a cowl and approximately for 2 minutes lift the frequency of rotation of the engine to 2000 rpm (without loading).
  3. Make check of the II diagnostic mode (self-diagnostics) — at operation of a control lamp of MIL make necessary recovery repair, or replace the failed components.


Step 2 — Check of installation of a corner of an advancing of ignition

 PERFORMANCE ORDER

  1. Approximately for 2 minutes lift the frequency of rotation of the engine to 2000 rpm (without loading).
  1. 2-3 times short breakthroughs lift the frequency of rotation of the engine to 4000 rpm (without loading), then dump turns to single.
  1. Kill the engine and disconnect an electrical wiring from the sensor of provision of a butterfly valve (TPS).
  1. Start the engine and 2-3 times lift its turns to 2000 — 3000 in a minute (without loading), then again dump to single.
  2. By means of a stroboscope check correctness of installation of a corner of an advancing of ignition. The required value makes 15 ° ± 2 ° before VMT (in position "N" of the lever of the AT selector) — in case of need make the corresponding adjustment (see a step 3). If there are no violations in installation of a corner of an advancing of ignition, pass to performing procedures of a step 4.


Step 3 — Adjustment of a corner of an advancing of ignition

 PERFORMANCE ORDER

  1. Adjustment of a corner of an advancing of ignition is made by deployment of the distributor of ignition after a preliminary otpuskaniye of bolts of its fastening.
  2. Having finished adjustment, kill the engine and connect an electrical wiring to the TPS sensor.


Step 4 — Check of installation of basic turns of idling


According to the scheme "with CONSULT"

 PERFORMANCE ORDER

  1. Consider the indication of the measuring instrument in the DATA MONITOR mode — the required value makes 700 ± 50 rpm (the AT selector lever — in situation "N").


According to the scheme "without CONSULT"

 PERFORMANCE ORDER

  1. Perform measurement of turns of idling — the required value makes 700 ± 50 rpm (the AT selector lever — in situation "N").


According to both schemes

At positive result of check you pass to performing procedures of a step 6, at negative results — a step 5.


Step 5 — Adjustment of basic value of turns of idling

 PERFORMANCE ORDER

  1. 2-3 times short breakthroughs lift the frequency of rotation of the engine to 4000 rpm (without loading), then dump turns to single.
  1. Make the corresponding correction of turns of idling by rotation of the adjusting screw.


Step 6 — Check of target turns of idling


According to the scheme "with CONSULT"

 PERFORMANCE ORDER

  1. Kill the engine and disconnect an electrical wiring from the TPS sensor.
  2. 2-3 times short breakthroughs lift the frequency of rotation of the engine to 4000 rpm (without loading), then dump turns to single.
  1. Consider the indication of the measuring instrument in the DATA MONITOR mode — the required value makes 750 ± 50 rpm (the AT selector lever — in situation "N").
  1. At positive result of check you pass to implementation of the procedure of a step 8.


According to the scheme "without CONSULT"

 PERFORMANCE ORDER

  1. Kill the engine and disconnect an electrical wiring from the TPS sensor.
  2. 2-3 times short breakthroughs lift the frequency of rotation of the engine to 4000 rpm (without loading), then dump turns to single.
  3. Perform measurement of turns of idling — the required value makes 750 ± 50 rpm (the AT selector lever — in situation "N").
  4. At positive result of check you pass to implementation of the procedure of a step 9.


According to both schemes

At negative results of check you pass to performing procedures of a step 7.


Step 7 — Identification of a source of violation

 PERFORMANCE ORDER

  1. Check serviceability of functioning of the IACV-AAC valve — in case of need make replacement.
  2. Check a condition of an electrical wiring of the IACV-AAC valve — in case of need replace a plait.
  3. Check serviceability of functioning of ECM by substitution of obviously serviceable block.

ECM exit out of operation happens extremely seldom.


Step 8 — Check of a signal left dokatalitichesky warmed up a lambda probe according to the scheme "with CONSULT"

 PERFORMANCE ORDER

  1. For a couple of minutes lift the frequency of rotation of the engine to 2000 rpm (without loading).
  2. Switch in the subsection "FR O2 MNTR-B2" of the DATA MONITOR mode of the measuring instrument.
  1. Without loading lift the frequency of rotation of the engine which is warmed up up to the normal working temperature to 2000 rpm — the indication of the measuring instrument has to change between LEAN values (the grown poor mix) and "RICH" (the enriched mix) of more than 5 times within 10 seconds.
    1 time: RICH> LEAN> RICH
    2 times: RICH> LEAN> RICH> LEAN> RICH
  1. At positive results of check you pass to performing procedures of a step 12.
  2. In the absence of fluctuations of the monitor you pass to a step 17, at fluctuations is more rare than 5 times a second — to a step 10, previously having replaced a lambda probe.


Step 9 — Check of a signal left dokatalitichesky warmed up a lambda probe according to the scheme "without CONSULT"

 PERFORMANCE ORDER

  1. For a couple of minutes lift the frequency of rotation of the engine to 2000 rpm (without loading).
  1. Pass into the subsection "Left bank front heated oxygen sensor monitor" of check of the II diagnostic mode.
  1. Make sure that the control lamp of refusals of MIL is activated not less than 5 times in 10 seconds at engine 2000 turns in a minute.
  2. At positive results of check you pass to performing procedures of a step 12.
  3. In the absence of fluctuations of the monitor you pass to a step 17, at fluctuations is more rare than 5 times a second — to a step 10, previously having replaced a lambda probe.


Step 10 — Check of a signal left dokatalitichesky warmed up a lambda probe


According to the scheme "with CONSULT"

 PERFORMANCE ORDER

  1. Switch in the subsection "FR O2 MNTR-B2" of the DATA MONITOR mode of the measuring instrument.
  1. Without loading lift the frequency of rotation of the engine which is warmed up up to the normal working temperature to 2000 rpm — the indication of the measuring instrument has to change between LEAN values (the grown poor mix) and "RICH" (the enriched mix) of more than 5 times within 10 seconds.
    1 time: RICH> LEAN> RICH
    2 times: RICH> LEAN> RICH> LEAN> RICH
  1. At positive results of check you pass to performing procedures of a step 12.


According to the scheme "without CONSULT"

 PERFORMANCE ORDER

  1. Pass into the subsection "Left bank front heated oxygen sensor monitor" of check of the II diagnostic mode.
  1. Make sure that the control lamp of refusals of MIL is activated not less than 5 times in 10 seconds at engine 2000 turns in a minute.
  2. At positive results of check you pass to performing procedures of a step 13.


According to both schemes

At negative results of check you pass to performing procedures of a step 11.


Step 11 — Identification of a source of violation

 PERFORMANCE ORDER

  1. Check serviceability of functioning of the regulator of pressure of fuel.
  2. Check a condition of the sensor of measurement of mass of air (MAF) and its chain.
  3. Check a condition of an injector of injection and its electric chain. In case of need make washing of an injector.
  4. Check serviceability of functioning of ECM by substitution of obviously serviceable block.

ECM exit out of operation happens extremely seldom.

  1. Having finished check, return to performing procedures of a step 2.


Step 12 — Check of a signal right dokatalitichesky warmed up a lambda probe according to the scheme "with CONSULT"

 PERFORMANCE ORDER

  1. For a couple of minutes lift the frequency of rotation of the engine to 2000 rpm (without loading).
  2. Switch in the subsection "FR O2 MNTR-B1" of the DATA MONITOR mode of the measuring instrument.
  1. Without loading lift the frequency of rotation of the engine which is warmed up up to the normal working temperature to 2000 rpm — the indication of the measuring instrument has to change between LEAN values (the grown poor mix) and "RICH" (the enriched mix) of more than 5 times within 10 seconds.
    1 time: RICH> LEAN> RICH
    2 times: RICH> LEAN> RICH> LEAN> RICH
  1. At positive results check is complete.
  2. In the absence of fluctuations of the monitor you pass to a step 16, at fluctuations is more rare than 5 times a second — to a step 14, previously having replaced a lambda probe.


Step 13 — Check of a signal right dokatalitichesky warmed up a lambda probe according to the scheme "without CONSULT"

 PERFORMANCE ORDER

  1. For a couple of minutes lift the frequency of rotation of the engine to 2000 rpm (without loading).
  1. Pass into the subsection "Right bank front heated oxygen sensor monitor" of check of the II diagnostic mode.
  1. Make sure that the control lamp of refusals of MIL is activated not less than 5 times in 10 seconds at engine 2000 turns in a minute.
  2. At positive results check is complete.
  3. In the absence of fluctuations of the monitor you pass to a step 16, at fluctuations is more rare than 5 times a second — to a step 14, previously having replaced a lambda probe.


Step 14 — Check of a signal left dokatalitichesky warmed up a lambda probe


According to the scheme "with CONSULT"

 PERFORMANCE ORDER

  1. Switch in the subsection "FR O2 MNTR-B1" of the DATA MONITOR mode of the measuring instrument.
  1. Without loading lift the frequency of rotation of the engine which is warmed up up to the normal working temperature to 2000 rpm — the indication of the measuring instrument has to change between LEAN values (the grown poor mix) and "RICH" (the enriched mix) of more than 5 times within 10 seconds.
    1 time: RICH> LEAN> RICH
    2 times: RICH> LEAN> RICH> LEAN> RICH
  1. At positive results check is complete.


According to the scheme "without CONSULT"

 PERFORMANCE ORDER

  1. Pass into the subsection "Right bank front heated oxygen sensor monitor" of check of the II diagnostic mode.
  1. Make sure that the control lamp of refusals of MIL is activated not less than 5 times in 10 seconds at engine 2000 turns in a minute.
  2. At positive results check is complete


According to both schemes

At negative results of check you pass to performing procedures of a step 15.


Step 15 — Identification of a source of violation

 PERFORMANCE ORDER

  1. Check serviceability of functioning of the regulator of pressure of fuel.
  2. Check a condition of the sensor of measurement of mass of air (MAF) and its chain.
  3. Check a condition of an injector of injection and its electric chain. In case of need make washing of an injector.
  4. Check serviceability of functioning of ECM by substitution of obviously serviceable block.

ECM exit out of operation happens extremely seldom.

  1. Having finished check, return to performing procedures of a step 2.


Step 16 — Check of a condition of an electrical wiring right dokatalitichesky warmed up a lambda probe

 PERFORMANCE ORDER

  1. Kill the engine and disconnect a negative wire from the battery.
  2. Disconnect an electrical wiring from ECM.
  3. Disunite the contact socket of an electrical wiring a lambda probe.
  1. Check conductivity between the plug 50 ECM and the socket a lambda probe — conductivity has to take place.
  1. At positive results of check you pass to performing procedures of a step 18, at negative — a step 8 or 9 after preliminary replacement of a plait.


Step 17 — Check of a condition of an electrical wiring left dokatalitichesky warmed up a lambda probe

 PERFORMANCE ORDER

  1. Kill the engine and disconnect a negative wire from the battery.
  2. Disconnect an electrical wiring from ECM.
  3. Disunite the contact socket of an electrical wiring a lambda probe.
  1. Check conductivity between the plug 50 ECM and the socket a lambda probe — conductivity has to take place.
  1. At positive results of check you pass to performing procedures of a step 18, at negative — a step 8 or 9 after preliminary replacement of a plait.


Step 18 — preparation for check of level of contents WITH


According to the scheme "with CONSULT"

 PERFORMANCE ORDER

  1. Switch in the subsection "COOLANT TEMP" of the ACTIVE TEST mode of the measuring instrument.
  1. By means of DWN and Qd switches expose COOLANT TEMP value of equal 5 °C.


According to the scheme "without CONSULT"

 PERFORMANCE ORDER

  1. Disconnect an electrical wiring from the sensor of temperature of cooling liquid (ECT).
  1. Connect the resistor with a resistance of 4.4 kOhm between plugs of the contact socket of an electrical wiring of the sensor.


Step 19 — Check of level of contents WITH in the fulfilled gases

 PERFORMANCE ORDER

  1. Start the engine and warm up it up to the normal working temperature — the arrow of the measuring instrument of temperature on the dashboard has to come to the middle of working range of a scale.
  1. 2-3 times short breakthroughs lift the frequency of rotation of the engine to 4000 rpm (without loading), then dump turns to single.
  1. Make measurement of content in the fulfilled gases of monoxide of carbon (SO). The required value makes 0.2 — 8% at single turns of the engine.


According to the scheme "without CONSULT"

 PERFORMANCE ORDER

  1. Having finished check, remove peremykayushchiya of the plug of the contact socket the resistor and restore initial connection of an electrical wiring.
  2. At positive results of check replace the left forward warmed-up oxygen sensor and return to a step 10.
  3. At negative results of check you pass to performing procedures of a step 20.


Step 20 — Identifications of a source of violation

 PERFORMANCE ORDER

  1. Connect an electrical wiring to both lobbies which are warmed up a lambda probes.
  2. Check serviceability of functioning of the regulator of pressure of fuel.
  3. Check a condition of the sensor of measurement of mass of air (MAF), an electrical wiring and its chains.
  4. Check a condition of an injector of injection and its electric chain. In case of need make washing of an injector.
  5. Check a condition of the ECT sensor and its electric chain.
  6. Check serviceability of functioning of ECM by substitution of obviously serviceable block.

ECM exit out of operation happens extremely seldom.

  1. Having finished check, return to performing procedures of a step 2.


"on the page back
3.15. Check of the brake system
on the following page"
3.17. Check of electric equipment