Question about 2004 Mazda 6

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I have mazda6 2005 car , service engine lamp glow

When i start my car the lamp of service engin in front panel glow and not go off always ON, this is done when i put in my car bad fuel, after that i discharge the fuel and put best fuel , the problem stay, I see that the engine not stable ( vibrated) , means engine not work correctly,
Please help me if you can
the secont thing i search on the manual of my 2005 mazda6 car , can you send it to my email?
Thank you

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The problem is solved partly, the lamp indication of engime service in front panel is gone OFF , what i do is : i take off the battery head for five minutes and the return it then the lamp goes OFF, but till i feel that the engine not work correctly because of vibration in engine ( not continuoes), i check nozels and fire ignitions they are correct in work , till i want help to solve the engine vibration. thanks

Posted on Dec 12, 2008

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Fix suzuki xl-7


the check engine engine light you mean?
double posted with year not, but not country, bad.
ill attempt to read your manual to you.
our dash (usa) the engine light is shaped like , and engine.
why not photo the light, or read the manual.

if the CEL/SES or MIL lamp glows you must SCAN the PCM.

check engine lamp
service engine soon SES,

here is the generic page on lamps.
100s
pick one, and tell exactly what it looks like or post a photo.
http://dashboardsymbols.com/the-symbols/

Mar 12, 2015 | 2002 Suzuki XL-7

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How to fix .


post symptoms like this.
i check head lights, they work key out , so do they?
i turn the key to Ignition on.
the dash self test lamps all glow, do they,?
look at that CEL lamp, (aka SES) lamp, check engine lamp
it it dont glow the engine brain, lost power, fuse, (head lamps work)
if the CEL glows. then now crank the engine, (start pos.)
does it crank robustly? yes /no?
yes, do you have spark>
no, does car crank over fast with jumper cables to running donor car?

that is start, no pun.

Jul 18, 2014 | 1999 Saturn SL

2 Answers

The service engine soon light will not come for pretest before starting engine. It is an automatic fail for emissions test. 2002 gmc sierra.


This could be something as simple as the Service Engine Soon light bulb being burned out. Removing the instrument cluster isn't too terribly difficult, but if you can carefully pull it out of the dash, look behind where the bulbs are located and see if that one happens to be burned out.
I hope this helps! :)

Jun 11, 2014 | Cars & Trucks

1 Answer

Power steering


P/s light? (are all fan belts good?)
do head lights glow bright on demand?
do all dash cluster lamps glow, key on,? and the CEL lamp???????
then the CEL goes out when engine starts and runs??? says out>?????
the engine is stalling. does it stall hot and cold engine?

there are 50 causes for that.
and 4 major systems to test. do you have tools. an meters and gauges to check engines.? if not get a mech, that has that
if you want to DIY , then get the tools.
ill list the 4 systems. (not each test)
1: 12vdc power to the whole EFI system.
2: good compression
3: lost spark.
4: bad fueling

there are test to find the 4 paths. #1 is easy a voltmeter will tell you good or bad.
check all fuse first. as always,

Jan 31, 2014 | 2007 Toyota Yaris

1 Answer

Ymy battery light came on and everything on dash


shaking?
that means the engine stalled.
when the engine stalls. (do a tune up)
as the engine misfires, grossly , the 4 cyl . engine will shake.
and then it stalls
and many cluster lamps glow, CEL lamp. and charge glow.
you failed to look at engine RPM its wrong.
the normal hot RPM is about 800RPm for most cars.
and the engine EFI brain regulates there.
if the ECU brain can not regulate RPM at 800 that means you have gross misfiring, (lots of causes)
#1 cause, not doing tune ups, (aka, the 60k service points)

Oct 30, 2013 | 2003 Honda Civic

4 Answers

I have a '91 F350 Dually w/a 7.3I diesel and it will not start when cold without using starting fluid. I replaced the glow plugs but they all checked good with a meter... currently recharging the batteries...


YOU CAN HOOK A 12 VOLT TEST LIGHT BETWEEN THE POWER RELAY OUTPUT TO GLOW PLUGS AND GROUND.WITH ENGINE COLD IGNITION SWITCH ON ENGINE NOT STARTED.THE TEST LAMP WILL LIGHT WHEN IGNITION IS TURNED ON.LAMP WILL BE LIT FOR FOUR TO TEN SECONDS DEPENDING UPON ENGINE COOLANT TEMPERATURE.TEST LAMP WILL THEN REPEAT ON OFF CYCLE.AFTER ENGINE IS STARTED.THE TEST LAMP CONTINUES TO REPEAT ON OFF CYCLE FOR 20 TO 90 SECONDS.LAMP WILL CYCLE FOR A MAXIMUM OF 90 SECONDS AFTER ENGINE IS STARTED.ENGINE STOPPED THEN RESTARTED.TEST LAMP WILL LIGHT IF COOLANT TEMPERATURE AT THE ENGINE TEMPERATURE SWITCH HAS FALLEN BELOW 165 DEGREE.BETWEEN STARTS THE SYSTEM WILL OPERATE FOR A SHORTER PERIOD OF TIME THAN WITH A COMPLETELY COLD ENGINE.TEST LAMP WILL REMAIN OFF. IF COOLANT AT THE CONTROL SWITCH PROBE IS AT 165 DEGREE OR HIGHER.

Mar 27, 2010 | Ford F-350 Cars & Trucks

1 Answer

My 2004 f250 after it sits it wont start. the wait to start light only comes on for bout1 to 2 sec. the only way i start it is to plug it up at night what is my problem.


The wait to start light always comes on for at least 1 sec, if it goes off early it must think the engine is warm.

My guess is you have a faulty engine oil temp sensor that is telling the pcm that it is already warm. The only way to know for sure is to read the info with a scan tool.

Glow Plug System: Description and Operation
GLOW PLUG SYSTEM
The 6.0L diesel engine uses a glow plug system that preheats air in the combustion chamber to improve cold engine starting.
The system consists of:
- glow plugs.
- glow plug control module.
- powertrain control module (PCM).
- engine oil temperature (EOT) sensor.
- barometric pressure sensor (BARO sensor).
The glow plug monitor system is part of the On-Board Diagnostics II (OBD II) System.
The glow plug system is electronically controlled by the powertrain control module. If the oil temperature is below 55°C (131°F) the powertrain
control module will energize the glow plugs immediately after the key is placed in the ON position. Then, depending on the readings from the engine
oil temperature (EOT) sensor and the barometric pressure (BARO) sensor, the powertrain control module determines how long the glow plugs will be
on.
The glow plugs are located in the cylinder heads, under the glow plug buss bar.
The glow plugs are self-regulating. If the engine oil temperature is above 55°C (131°F), the powertrain control module will bulb-check the WAIT TO
START lamp but not energize the glow plug relay.
The glow plug ON time varies from 0-120 seconds depending on battery voltage, engine oil temperature and barometric pressure.
The glow plug control monitor (GPCM) system is designed to find failed glow plugs or failed wiring in the glow plug system.

Oct 30, 2009 | 2004 Ford F250

1 Answer

Where can I find the schematics for a 1995 Ford F250 7 3 liter turbo diesel? We're able to start the truck on ether, but she won't continue to run. We're guessing it's the fuel pump, possibly the filter or...


drain water from filter. change filter. prime system.
If it doesn't fix it, check glow plugs to be sure they are preheating combustion chamber.

Fuel Supply System The fuel system consists of the following three major subsystems:
  • Fuel supply system
  • Injection control pressure system
  • Fuel injector assembly
The fuel transfer pump is a camshaft-driven, two-stage diaphragm/piston pump mounted in the engine "V".
Fuel is drawn from the fuel tank through the primary filter by the diaphragm section of the transfer pump. Pressurized fuel (approximately 28 kPa [ 4 psi]) is supplied to the secondary filter and returned to the second stage of the transfer pump. The piston-actuated second stage of the transfer pump supplies 276-345 kPa (40-50 psi) of fuel to the rear of each cylinder head where it flows to a fuel rail machined in each head.
Drillings in the cylinder head route the fuel to the plunger area of the fuel injector which can pressurize the fuel to 124,110 kPa (18,000 psi) for delivery to the combustion chamber via a conventional nozzle/valve tip arrangement.
Return fuel is plumbed from fittings at the front of each cylinder head to a junction block which contains a piston/spring type regulator valve that maintains pressure to approximately 414 kPa (60 psi). A de-aeration bleed orifice between the fuel filter and the regulator block vents air trapped in the fuel filter. Most of the fuel from the regulator is recirculated to the inlet of the piston (high pressure) stage of the transfer pump. Fuel return to the tank is limited to 30-38 liters (8-10 gallons) an hour through the use of a 0.0008mm (.020-inch) orifice. This prevents the fuel from overheating in the tank.
---------------------------------------
Injector Driver Module The injector driver module (IDM) is used in conjunction with the PCM to sequentially control power to the fuel injectors on the 7.3L DI turbo diesel engine. The PCM processor generates two digital control signals for the IDM: fuel delivery control signal (FDCS) and cylinder identification (CID). The FDCS signal is used by the IDM to control injection timing and injection duration. The CID provides synchronization to the engine's first and fifth injector (firing order). The IDM verifies that FDCS and CID occur at valid timing intervals. The IDM outputs an electronic feedback (EF) signal, to the PCM, which is a delayed mimic of the FDCS for verification. Selected diagnostic information is also passed to the PCM via the EF signal in run mode.
The IDM is a high-energy power supply which acts as an energy distributor to provide regulated injector energy and control to the unit fuel injectors, based on FDCS and CID commands from the PCM. All IDM components are solid state; there are no user serviceable parts or adjustments. The IDM internal power supply uses a DC-to-DC converter to boost the supply voltage (VBATT) up to 115V DC. This supply is required to overcome the initial impedance of the injectors, ensuring rapid turn on. There are two high side drivers, one for each bank (left and right cylinder bank), and eight low side drivers, one for each injector. One high and one low side must be turned on to energize an injector. Once synchronized with the PCM, the IDM will select the proper low side driver (enable) and control the corresponding high side driver to regulate the current to an injector.
Continuous and on-demand system diagnostic information is provided between the PCM processor and the IDM via the EF signal. During normal operation, the IDM can indicate to the PCM that an injector low side short to ground has been detected, or that the IDM has lost synchronization.
The IDM constantly performs self-diagnostics and also monitors the injector circuits for electrical faults. Any fault codes set are transmitted via the EF signal to the PCM during Key On/Engine Off On-Demand Self Test. If the PCM is unable to obtain diagnostic information from the IDM, DTC 1668 is set.
---------------------------------------------
Glow Plug Control Glow plugs are used to warm the cylinders to improve cold-engine starting. The PCM uses the engine oil temperature (EOT) sensor and barometric pressure (BARO) sensor to determine how long the glow plugs will be on. The PCM energizes the glow plugs longer if the engine is very cold or if the barometric pressure is low at high altitudes.
The PCM controls the relay that supplies power to the glow plugs with the glow plug control (GPC) signal. When the GPC signal is grounded by the PCM the relay closes, turning the glow plugs on.
The glow plugs are controlled by the following sequence:
  1. PCM energizes the glow plugs.
  1. The PCM energizes the glow plugs immediately after the ignition is placed in the ON position.
  1. The PCM then determines how long glow plugs will be on based on EOT sensor and the BARO sensor. The required time to warm up the cylinder decreases the engine oil temperature and barometric pressure increases at low altitudes.
  2. ------------------------------------------------------
Glow Plug Lamp Control The glow plug lamp (GPL) signal controls the WAIT TO START light located on the instrument panel. This light is used to indicate when to start the engine. The cylinders are being warmed by the glow plugs during and after this light is lit. The PCM energizes the glow plug lamp longer if the engine is very cold or if the barometric pressure is low.
When the GPL signal is brought low, the "Wait to Start" lamp is turned on.
The glow plug lamp is controlled by the following sequence:
  1. PCM lights the WAIT TO START light after a key on reset occurs.
The PCM determines the glow plug lamp activation time based on engine oil temperature, barometric pressure and battery voltage.
  1. PCM turns off the WAIT TO START light.
The glow plug lamp is turned off when the timer counts to the number of seconds specified by the PCM. The glow plugs will normally remain on longer than the "Wait to Start" lamp.

Sep 22, 2009 | 1995 Ford F250

1 Answer

Glow plugs causing starting problem


if you need connectors and terminals for the glow plug connections under the valve cover, Ford sells then so you don't need a whole $600 harness.

info for your use

Section 03-07B: Glow Plug System 1996 F-250, F-350, F-Super Duty Equipped with 7.3L Diesel Engines Workshop Manual
DESCRIPTION AND OPERATION Glow Plug System The 7.3L diesel engine uses a glow plug system which preheats air in the combustion chamber to improve cold engine starting. The system consists of eight glow plugs, the glow plug control module (12B533), powertrain control module (PCM) (12A650), engine oil temperature (EOT) sensor and barometric pressure sensor (BARO sensor) (12A644). The glow plug system is electronically controlled by the powertrain control module. The powertrain control module energizes the glow plugs immediately after the key is placed in the ON position and then determines how long the glow plugs will be on according to the engine oil temperature and the barometric pressure. The required time for the glow plugs to be energized decreases as the engine oil temperature and barometric pressure increase. The glow plugs are self-regulating, and the powertrain control module controls relay ON time. The powertrain control module protects the glow plugs by energizing them for short durations if the battery voltage is abnormally high.

Possible Causes: Insufficient glow plug ON time will not allow enough heat to accumulate in the combustion chamber to easily facilitate starting. If the glow plug system ON time does not meet any of the specifications in the accompanying chart the problem is most likely a faulty wire harness connection, ground connections or glow plug relay.

If the glow plug resistance to ground is high, the most likely causes are an open UVC (under valve cover) harness or open glow plug.
--------------------------------------------------------
Relay Operation
Install a DVOM on the glow plug feed side of the glow plug relay (large stud with two wires connected). Turn the ignition key to the ON position but do not attempt to start. Note the time in seconds from when the key is turned on and the glow plug relay energizes until the glow plug relay de-energizes. The glow plug relay makes a loud click noise which is easily heard when it energizes and de-energizes. The dome light will dim and the dash voltmeter will dip when the glow plugs are drawing current from the battery. Compare the times measured to the table (time will be affected by engine temperature, battery condition and vehicle altitude). The voltage at the glow plug feed terminal may vary from 9 to 12 volts depending upon battery condition.
--------------------------------------

-----
If battery voltage not present check for B+ at power supply terminal (terminal with single large wire). Power for glow plug power supply is supplied from starter relay through two fusible links at solenoid.
Glow Plug Operation
Disconnect all of the glow plug/injector harness connectors from the valve cover gaskets. With the pigtail installed, measure glow plug resistance to ground (preferably B-). A resistance measurement of .1 to 6 ohms indicates a good glow plug.



Glow Plug Harness Continuity
Measure for continuity from the connector harness to the glow plug feed terminal on the glow plug relay. Resistance should be less than 5 ohms.
Incorrect measurements will result if all glow plug/injector connectors to valve cover are not disconnected.

---------------------------------------------------
Glow Plug Relay The glow plug relay (12A343) has a plastic base and two mounting bolts. It is operated by the powertrain control module (PCM) (12A650) which senses engine oil temperature, PCM voltage and barometric pressure. When the engine oil temperature or the barometric pressure is low, the PCM activates the glow plug relay and the glow plugs. If the PCM voltage is too high, the powertrain control module deactivates the glow plug relay and the glow plugs immediately energize for a shorter duration, decreasing the modulation of the duty cycle.
-----------------------------------------------
Glow Plug Removal
  1. stj~us~en~file=ani_caut.gif~gen~ref.gif WARNING: THE RED-STRIPED WIRING HARNESS CARRIES 115V DC. SEVERE ELECTRICAL SHOCK MAY BE RECEIVED. DO NOT PIERCE.
    Remove valve cover (6582). Refer to Section 03-01D .
  1. Disconnect glow plug electrical connector using a pair of pliers.
  1. Remove glow plug using 10mm socket.
  1. Clean and inspect glow plug tip for damage. Replace if damaged.
Installation
  1. Install glow plug and tighten to 19 Nm (14 lb-ft).
  1. Connect glow plug electrical connector. Make sure glow plug wiring is routed to avoid moving parts.
--------------------------------------------------------------
Glow Plug Control Glow plugs are used to warm the cylinders to improve cold-engine starting. The PCM uses the engine oil temperature (EOT) sensor and barometric pressure (BARO) sensor to determine how long the glow plugs will be on. The PCM energizes the glow plugs longer if the engine is very cold or if the barometric pressure is low at high altitudes.
The PCM controls the relay that supplies power to the glow plugs with the glow plug control (GPC) signal. When the GPC signal is grounded by the PCM the relay closes, turning the glow plugs on.
The glow plugs are controlled by the following sequence:
  1. PCM energizes the glow plugs.
  1. The PCM energizes the glow plugs immediately after the ignition is placed in the ON position.
  1. The PCM then determines how long glow plugs will be on based on EOT sensor and the BARO sensor. The required time to warm up the cylinder decreases the engine oil temperature and barometric pressure increases at low altitudes.
Glow Plug Lamp Control The glow plug lamp (GPL) signal controls the WAIT TO START light located on the instrument panel. This light is used to indicate when to start the engine. The cylinders are being warmed by the glow plugs during and after this light is lit. The PCM energizes the glow plug lamp longer if the engine is very cold or if the barometric pressure is low.
When the GPL signal is brought low, the "Wait to Start" lamp is turned on.
The glow plug lamp is controlled by the following sequence:
  1. PCM lights the WAIT TO START light after a key on reset occurs.
The PCM determines the glow plug lamp activation time based on engine oil temperature, barometric pressure and battery voltage.
  1. PCM turns off the WAIT TO START light.
The glow plug lamp is turned off when the timer counts to the number of seconds specified by the PCM. The glow plugs will normally remain on longer than the "Wait to Start" lamp.
-----------------------------------

Mar 14, 2009 | 2004 Ford F350

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