Infiniti QX4 service 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 impellent oil and oil filter
3.7. Check of a condition and replacement of the hoses located in an impellent compartment
3.8. Service of system of cooling (oporozhneniye, washing and filling)
3.9. Check, service and charging of the storage battery
3.10. Check of a condition and belts of a drive of auxiliary units
3.11. Replacement of spark plugs, check of a condition of VV of electroconducting
3.12. Replacement of a filtering element of an air purifier
3.13. Check of a condition and replacement of brushes of screen wipers, pro-cleaning and adjustment snuffled supply of 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 brake system
3.16. Check / adjustment of installations of turns of an idling / corner of an advancing of ignition / quality of an air and fuel mix
3.17. Electric equipment check
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 and heating systems
6. Power supply systems and managements
7. Start and charge systems
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 an air and fuel mix

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

  • Battery;
  • Components of system of ignition;
  • Impellent oil and cooling liquid (levels);
  • Safety locks;
  • Contact socket of electroconducting of ECM;
  • Vacuum hoses;
  • Inlet air path (cover of a mouth of filling of oil, measuring instrument of level of oil, 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 central air of air, switch off the conditioner.
  2. Transfer the AT selector lever to the situation "N".
  3. At check of level of the content of monooxide of carbon (WITH) enter a probe щупа into an exhaust pipe not more deeply than on 40 see.
  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 stop of the fan of system of cooling.


Function chart of carrying out checks


Step 1 — the Beginning of checks

 PERFORMANCE ORDER

  1. Visually check passableness of a filtering element of an air purifier.
  2. Check all hoses and sleeves on 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 electroconducting.
  5. Estimate a condition of sealing laying.
  1. Start the engine and warm up it to normal working temperature — the arrow of a measuring instrument of temperature on the dashboard should leave on the middle of a working range of a scale.
  1. Make sure that turns of the engine make no more than 1000 in a minute.
  2. Open a cowl and approximately for 2 minutes lift 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 regenerative 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 frequency of rotation of the engine to 2000 rpm (without loading).
  1. 2-3 times short breakthroughs lift frequency of rotation of the engine to 4000 rpm (without loading), then dump turns to the single.
  1. Muffle the engine and disconnect electroconducting 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 the single.
  2. By means of a stroboscope check correctness of installation of a corner of an advancing of ignition. Demanded value makes 15 °  ± 2 ° before VMT (in the position "N" of the lever of the AT selector) — in case of need make the corresponding adjustment (see a step 3). If violations in installation of a corner of an advancing of ignition are not present, pass to performance of 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, muffle the engine and connect electroconducting to the TPS sensor.


Step 4 — Check of installation of base turns of idling


According to the scheme «with CONSULT»

 PERFORMANCE ORDER

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


According to the scheme «without CONSULT»

 PERFORMANCE ORDER

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


According to both schemes

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


Step 5 — Adjustment of base value of turns of idling

 PERFORMANCE ORDER

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


According to the scheme «without CONSULT»

 PERFORMANCE ORDER

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


According to both schemes

At negative results of check pass to performance of 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 electroconducting 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 few minutes lift frequency of rotation of the engine to 2000 rpm (without loading).
  2. Be switched in the subsection "FR O2 MNTR-B2" of the DATA MONITOR mode of a measuring instrument.
  1. Without loading lift frequency of rotation of the heated-up engine to normal working temperature to 2000 rpm — the indication of a measuring instrument should change between LEAN values (the grown poor mix) and «RICH» (the enriched mix) 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 pass to performance of procedures of a step 12.
  2. In the absence of fluctuations of the monitor 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 few minutes lift frequency of rotation of the engine to 2000 rpm (without loading).
  1. Pass to 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 pass to performance of procedures of a step 12.
  3. In the absence of fluctuations of the monitor 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. Be switched in the subsection "FR O2 MNTR-B2" of the DATA MONITOR mode of a measuring instrument.
  1. Without loading lift frequency of rotation of the heated-up engine to normal working temperature to 2000 rpm — the indication of a measuring instrument should change between LEAN values (the grown poor mix) and «RICH» (the enriched mix) 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 pass to performance of procedures of a step 12.


According to the scheme «without CONSULT»

 PERFORMANCE ORDER

  1. Pass to 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 pass to performance of procedures of a step 13.


According to both schemes

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


Step 11 — Identification of a source of violation

 PERFORMANCE ORDER

  1. Check serviceability of functioning of a regulator of pressure of fuel.
  2. Check a condition of the sensor of measurement of weight of air (MAF) and its chain.
  3. Check a condition of an injector of injection and its electric chain. In case of need make injector washing.
  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 performance of 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 few minutes lift frequency of rotation of the engine to 2000 rpm (without loading).
  2. Be switched in the subsection "FR O2 MNTR-B1" of the DATA MONITOR mode of a measuring instrument.
  1. Without loading lift frequency of rotation of the heated-up engine to normal working temperature to 2000 rpm — the indication of a measuring instrument should change between LEAN values (the grown poor mix) and «RICH» (the enriched mix) 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 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 few minutes lift frequency of rotation of the engine to 2000 rpm (without loading).
  1. Pass to 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 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. Be switched in the subsection "FR O2 MNTR-B1" of the DATA MONITOR mode of a measuring instrument.
  1. Without loading lift frequency of rotation of the heated-up engine to normal working temperature to 2000 rpm — the indication of a measuring instrument should change between LEAN values (the grown poor mix) and «RICH» (the enriched mix) 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 to 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 pass to performance of procedures of a step 15.


Step 15 — Identification of a source of violation

 PERFORMANCE ORDER

  1. Check serviceability of functioning of a regulator of pressure of fuel.
  2. Check a condition of the sensor of measurement of weight of air (MAF) and its chain.
  3. Check a condition of an injector of injection and its electric chain. In case of need make injector washing.
  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 performance of procedures of a step 2.


Step 16 — Check of a condition of electroconducting right dokatalitichesky warmed up a lambda probe

 PERFORMANCE ORDER

  1. Muffle the engine and disconnect a negative wire from the battery.
  2. Disconnect electroconducting from ECM.
  3. Disunite the contact socket of electroconducting a lambda probe.
  1. Check conductivity between the plug of 50 ECM and the socket a lambda probe — conductivity should take place.
  1. At positive results of check pass to performance of 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 electroconducting left dokatalitichesky warmed up a lambda probe

 PERFORMANCE ORDER

  1. Muffle the engine and disconnect a negative wire from the battery.
  2. Disconnect electroconducting from ECM.
  3. Disunite the contact socket of electroconducting a lambda probe.
  1. Check conductivity between the plug of 50 ECM and the socket a lambda probe — conductivity should take place.
  1. At positive results of check pass to performance of 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 the contents WITH


According to the scheme «with CONSULT»

 PERFORMANCE ORDER

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


According to the scheme «without CONSULT»

 PERFORMANCE ORDER

  1. Disconnect electroconducting from the sensor of temperature of cooling liquid (ECT).
  1. Connect between plugs of the contact socket of electroconducting of the sensor the resistor resistance of 4.4 kiloohms.


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

 PERFORMANCE ORDER

  1. Start the engine and warm up it to normal working temperature — the arrow of a measuring instrument of temperature on the dashboard should leave on the middle of a working range of a scale.
  1. 2-3 times short breakthroughs lift frequency of rotation of the engine to 4000 rpm (without loading), then dump turns to the single.
  1. Make measurement of the content in the fulfilled gases of monooxide of carbon (WITH). Demanded 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 electroconducting.
  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 pass to performance of procedures of a step 20.


Step 20 — Identifications of a source of violation

 PERFORMANCE ORDER

  1. Connect electroconducting to both lobbies warmed up a lambda probes.
  2. Check serviceability of functioning of a regulator of pressure of fuel.
  3. Check a condition of the sensor of measurement of weight of air (MAF), electroconducting and its chains.
  4. Check a condition of an injector of injection and its electric chain. In case of need make injector washing.
  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 performance of procedures of a step 2.


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3.15. Check of brake system
on the following page»
3.17. Electric equipment check