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1997 Toyota Premio Diesel CT210 consuming more Fuel

My car is consuming more Diesel. I have replaced all 4 Injector nozzles and serviced the fuel,pump with a repair Kit. But still no improvement. What can I do next?

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  • Toyota Master
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The following are the general instructions on the start of diagnosing any electronically controlled engine or transmission problem.

The engine and the automatic transmission (transmission control is only for automatics, engine is still computer controlled no matter the transmission type) in this vehicle are computer controlled and in most cases when a fault occurs a fault code is stored in the memory of the computer control module. There are exception to this, such as the Mass Airflow Meter and fuel pressure problems. What must be done is to have all the basic testing done such as a scan of the system for fault codes as well as a check with a live data scanner tool for engine functions that are not within range of normal, a trained technician is required to know what is correct and what isn't, then based on careful diagnostics done from a factory repair manual the correct part is replaced or the wiring repaired or the computer replaced (known as the PCM), which is very rarely the problem. Other basic checks must be done as well such as mechanical problems with the engine as well as engine state of tune and mileage on the engine. The transmission can have mechanical issues as well such as no gear engagement at all or a failed pump or other pressure related problems. Also engine mechanical problems can and do cause many drive-ability related problem such as rough idle and other symptoms.



Posted on Oct 25, 2012

  • Wilfred Gnanapragasam Oct 27, 2012

    Thanks your suggestion was helpful

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: VW Golf Mk3 1997 diesel fuel pump replacement

1993–99 Cabrio, Golf, and Jetta

  1. Remove the negative battery cable.
  2. Raise and safely support the vehicle.
  3. Relieve the fuel system pressure.
  4. Remove the rear seat and the access cover.
  5. Disconnect the wiring and hoses.
  6. Remove the fuel lines from the pump.
  7. On 1993–99 Golf, Jetta and Cabrio vehicles, unscrew the fuel pump retaining ring.
  8. On all other models, remove the mounting bolts and the fuel pump.
  9. Carefully lift out the pump and gauge sending unit assembly.
  10. Empty the fuel pump into an approved container.
To install:
  1. Installation is the reverse of removal. Be sure to use new sealing rings and/or gaskets.

Posted on Nov 29, 2008

mecanica03
  • 907 Answers

SOURCE: where is fuel pump relay on 1995 toyota camry

generally toyota, supply `power direct from ecu

Posted on Apr 29, 2009

  • 2 Answers

SOURCE: Toyota Surf Diesel starting problem

Injectors could be blocked but i would go with an injector pump or fuel pump.

Posted on May 11, 2009

  • 121 Answers

SOURCE: My mitsubishi 4D56 wouldn't start

did you purge the air from the fuel system, or try to start it with ether? you may want to check the timing again if no fuel is being supplied to the engine.

Posted on Jan 17, 2011

SOURCE: diesel fuel leak. looking for diagram of injector

Get a professionally rebuilt pump. Don't try to mess with rebuilding yours, it isn't worth it. I know the rebuilt pumps are high ($450) plus, but it will pay off in reliability and performance.

Posted on Mar 08, 2011

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HOW TO CHANGE FUEL PUMP IN 1993 CADILAC ELDORADO


To replace fuel pump,the assembly has to be removed out,also its advisable to replace fuel filter while replacing fuel pump,if it as not replaced before.

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I suggest you few helpful links with proper step by step procedure to get your fuel pump and its related parts inspected/ serviced and replaced:--------

How to relieve fuel pressure?

http://technoanswers.blogspot.com/2012/01/how-to-relieve-fuel-pressure.html

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http://repairhelpcenter.blogspot.com/2012/01/refueling-problem.html

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http://repairhelpcenter.blogspot.com/2012/01/toyota-tercel-consuming-more-fuel.html

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http://schematicsdiagram.blogspot.com/2011/11/how-to-maximize-fuel-economy-on-your.html

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http://schematicsdiagram.blogspot.com/2011/12/how-to-increase-gas-mileage-on-2011.html
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http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fuel-injector.html


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How to Replace a Fuel Pressure Regulator?

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fuel-pressure-regulator.html

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How to Replace a Fuel Pump?

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-fuel-pump.html

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HOW TO CLEAN A FUEL SYSTEM

http://schematicsdiagram.blogspot.com/2011/07/how-to-clean-fuel-system.html

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HOW TO REPLACE A FUEL TANK

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-fuel-tank.html
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HOW TO REPLACE A FUEL TANK CAP

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-fuel-tank-cap.html

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HOW TO REPLACE A FUEL PUMP ASSEMBLY

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-fuel-pump-assembly.html

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How to test Fuel Pressure and replace Fuel Pump on Acura Car models?

http://repairhelpcenter.blogspot.com/2011/11/how-to-test-fuel-pressure-and-replace.html
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Jaguar Fuel Pump

http://schematicsdiagram.blogspot.in/2012/07/jaguar-fuel-pump.html
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Adding performance chip to increase Fuel mileage MPG?

http://technoanswers.blogspot.com/2012/01/adding-performance-chip-to-increase.html

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How to test Electric fuel pump on GMC sonoma?

http://technoanswers.blogspot.com/2012/01/how-to-test-electric-fuel-pump-on-gmc.html

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Fuel gauge drops to Empty?

http://technoanswers.blogspot.com/2012/01/fuel-gauge-drops-to-empty.html

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http://technoanswers.blogspot.in/2012/01/fuel-pump-not-working-on-1991-ford.html

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Fuel pump has no power on 2002 ford 350 7.3 diesel?

http://technoanswers.blogspot.in/2012/01/fuel-pump-has-no-power-on-2002-ford-350.html

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How to replace fuel filter on BMW 525i?

http://schematicsdiagram.blogspot.in/2012/03/how-to-replace-fuel-filter-on-bmw-525i.html

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These will help.

Thanks.

Nov 26, 2012 | 1993 Cadillac Eldorado

1 Answer

How can I change fuel injectors on a Toyota Tacoma 98 4 cylinder


The Toyota Tacoma has a fuel injector that mixes fuel with air. This technology almost completely replaced carburetors in the late 1980s and its programmable firmware allows the same hardware to be used with different fuels. A fuel injector is only a nozzle and a valve; it still requires a pump to inject the fuel into the engine.
    • 1 Determine which fuel injector your Toyota Tacoma will need. This depends not only on the make and model, but also the engine size. Models made before 2005 may have a 2.4L, 2.7L or 3.4L engine. The current version may have a 2.7L or 4.0L engine.
    • 2 Relieve the fuel system pressure and disconnect the negative battery cable with a socket wrench. Remove the engine under cover subassembly and drain the engine coolant. Detach the intake air connector and disconnect the throttle body motor assembly with a socket wrench.
    • 3 Disconnect the fuel lines and remove the fuel pressure pulsation damper assembly with a socket wrench. Unplug the electrical connectors for the fuel and vacuum switching valve. Remove the engine wiring harness clamp and the air conditioning compressor clutch connector with a socket wrench.
    • 4 Remove the two fuel rail mounting bolts with a socket wrench and lift out the fuel rail with the injectors still attached. Pull out the fuel injectors and discard the old gaskets.
    • 5 Use new gaskets and install the new fuel injectors by reversing the removal procedure.
    • 6 Fill the coolant reservoir with coolant of the proper grade and type. Start the engine and check for fuel leaks.

Feb 18, 2012 | 1997 Toyota Tacoma

1 Answer

Rodeo 2006 diesel turbo.loss of power as if little fuel.could it be turbo or injectors


First try replacing the fuel filter and also check the air filter element, if its clogged with dust replace.
After doing all this check the performance of the engine,if its still the same thn time to remove the injector nozzles for service.
The last option would thn be the pump(injector).
Hope this helps!

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Knock in engine


it can also be an injector. injectors tend to supply more diesel after long service. To check if this is the problem: let the motor idle whilst it knocks. start from the front of the motor- loosen no1 injector fuel line- the motor will start idling roughly as fuel supply to no1 piston is starved. If the knock persists, tighten the fuel line and move to no2 injector and repeat the process. the knock will gradually go away if one of the injectors' fuel lines are loosened and the injector is faulty. If you get 1 or more injectors with these symptoms, remove and replace the injector. If the problem persists, it can either be that one of the diesel pump plungers are worn and supplies too much fuel or a big end bearing is faulty.
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1 Answer

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