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Cant start 4hl1 engine, crank but not start.., what is the problem ecm or fuse

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Could be either but I would be looking at cam/crank position sensors , immobiliser operation
I would run the fault codes to check for failed sensors.

Posted on Jul 07, 2015

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Posted on Jan 02, 2017

  • 921 Answers

SOURCE: S-10 Cranks but won`t start jumpacross ECM battery

how about fuse..is it bad?

Posted on Oct 08, 2009

  • 58 Answers

SOURCE: ECM BATT fuse keeps blowing

That fuse provides power for the fuel pump. Either your fuel pump is blowing the fuse or there is a shorted wire.

Posted on Dec 21, 2008

  • 117 Answers

SOURCE: 1988 C2500 engine stalled, cranks

Remember that the relay only will send power to the fuel pump for only 3-5 seconds after the key is turned on. You will need someone in the cab cranking the engine over while you test the circuit to the pump. Make sure you are testing the correct wire. If the engine will start with starting fluid, then there is a fuel delivery problem. Connect a fuel pressure guage to the fuel rail. If you have the required pressure, then you may have a computer that is not grounding the injectors. If you have no fuel pressure, you may have a inoperative fuel pump or a clogged fuel filter.

DT

Posted on Sep 18, 2010

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WHY DOES MY ISUZU 4HL1 ENGINE HAVE A HARD START ALWAYS?


no car stated, huge NPR truck no less.
no year stated
so no free book information on that engine,.
big diesel. 4HL1, no dash letter?
compression at spec.?
glow plugs work.,
filters clean. water in fuel,
does test fuel (spray'd) help? ???
injection problems
lack of startup air.(filter)


The 4HL1 is a common rail direct injection OHC 16V high-pressure fuel injection system diesel engine of 4.777 L capacity with electronic control system. Peak torque is 333 Nm, peak power is 140 PS (103 kW) at 3,000 rpm. Maximum torque is (34.0 kg m)'/1,500 rpm. Bore is 115 mm, stroke is 115 mm.
The 4HL1-N is a common rail direct injection OHC 16V high-pressure fuel injection system diesel engine of 4.777 L capacity with electronic control system. Peak torque is 333 Nm, peak power is 131 PS (96 kW) at 3,000 rpm. Maximum Torque is (34.0 kg m)'/1,500 rpm. Bore is 115 mm, stroke is 115 mm.
The 4HL1-TC is a common rail direct injection OHC 16 V turbocharged and intercooled high-pressure fuel injection system engine of 4.777 L capacity with electronic control system. Peak torque is 425 Nm, peak power is 160 PS (118 kW) at 2,700 rpm. Maximum torque is (43.3 kg m)'/1,500 rpm. Bore is 115 mm, stroke is 115 mm.
The 4HL1-TCS is a common rail direct injection OHC 16 V turbocharged and intercooled high-pressure fuel injection system diesel engine of 4.777 L capacity with electronic control system. Peak torque is 500 Nm, peak power is 179 PS (132 kW) at 2,700 rpm. Maximum torque is (51.0 kg m)'/1,500 rpm. Bore is 115 mm, stroke is 115 mm.

May 31, 2016 | Isuzu Cars & Trucks

1 Answer

My 2013 dodge avenger wont start. Im getting a p0688 ECM/PCM code. What should I do


P0688 (generic) = ECM/PCM Power Relay Sense Circuit /Open
P0688 DODGE - Auto Shutdown Relay Control Circuit Low

Check all the ECM fuses, if the fuses are OK try replacing the ASD (Auto Shut Down) relay.

Read more: http://www.autocodes.com/p0688_dodge.html#ixzz405J7vpq8

Possible causes:

- Weak battery - Low voltage while cranking
- Faulty Engine Control Module (ECM) relay
- Blown ECM fuse
- Faulty ECM
- ECM harness is open or shorted
- ECM circuit poor electrical connection

Feb 13, 2016 | Dodge Cars & Trucks

1 Answer

Where is the ECM fuse and Fuel pump relay on a 2000 Hyundai Tiberon?


images for Where is the ECM fuse and Fuel pump ..

ECU fuse keeps blowing - New Tiburon Forum : Hyundai Tiburon ...

www.newtiburon.com/.../tiburon.../217243-ecu-fuse-keeps-blowing.html

Sep 8, 2012 - 18 posts - ‎8 authors
Edit: Instead, pull the fuel pump relay, and see if the fuse still blows when ... ControlRelay, Fuel Pump relay, A/T control relay, Generator, ECM ... Official "Check Engine Light" Thread - New Tiburon Forum ...
Jul 22, 2014
Fuel pump Relay
Apr 26, 2013
Starting problem. Fuel pump doesn't prime with key on.
Mar 9, 2013
Fuel pump not starting intermittently
Oct 6, 2010
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Car Cranks But Will Not Start - Hyundai Forums : Hyundai Forum

www.hyundai-forums.com/...2000.../85246-car-cranks-but-will-not-start...

Jan 17, 2008 - 10 posts - ‎6 authors

Jan 06, 2016 | Hyundai Cars & Trucks

1 Answer

Chevy code P1682?


P1682 Chevrolet - Ignition 1 Switch Circuit 2

Possible causes
- Faulty ignition switch
- Ignition Switch harness is open or shorted
- Ignition Switch circuit poor electrical connection
- Faulty Engine Control Module (ECM)
What does this mean? What does this mean?
When is the code detected?
The ECM has detected a voltage deifference between two circuits
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Possible no crank or start
P1682 Chevrolet Description

There are 2 ignition 1 voltage circuits supplied to the Engine Control Module (ECM). The first ignition circuit is provided by the powertrain relay, through a fuse. This ignition 1 voltage circuit supplies power to all the internal ECM circuits associated with the throttle actuator control (TAC) operation. The second ignition 1 voltage circuit is supplied by the run/crank relay through a fuse, and is used to power the remaining internal ECM circuits. If the ECM detects a voltage difference between the 2 ignition 1 voltage circuits, DTC P1682 will set

Read more: http://engine-codes.com/p1682_chevrolet.html#ixzz3dr4CYBUT

Jun 22, 2015 | Cars & Trucks

1 Answer

How do i fix a code po688? 2004 pacifica, no crank, no start, dash lights are on with key on the on position


Weak battery- Low voltage while cranking
- Faulty Engine Control Module (ECM) relay
- Blown ECM fuse
- Faulty ECM
- ECM harness is open or shorted
- ECM circuit poor electrical connection

Jan 20, 2015 | 2004 Chrysler Pacifica

1 Answer

Am having trouble with my chevolet colorado 3.7 lt


Possible causes
- Faulty ignition switch
- Ignition Switch harness is open or shorted
- Ignition Switch circuit poor electrical connection
- Faulty Engine Control Module (ECM)
help.jpg What does this mean?
When is the code detected?
The ECM has detected a voltage deifference between two circuits
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Possible no crank or start
P1682 Chevrolet Description
There are 2 ignition 1 voltage circuits supplied to the Engine Control Module (ECM). The first ignition circuit is provided by the powertrain relay, through a fuse. This ignition 1 voltage circuit supplies power to all the internal ECM circuits associated with the throttle actuator control (TAC) operation. The second ignition 1 voltage circuit is supplied by the run/crank relay through a fuse, and is used to power the remaining internal ECM circuits. If the ECM detects a voltage difference between the 2 ignition 1 voltage circuits, DTC P1682 will set.


Read more: http://engine-codes.com/p1682_chevrolet.html#ixzz3Djm8K11C

Sep 19, 2014 | Cars & Trucks

1 Answer

What is the pOssible cause of 4HL1-1 not starting even if i change the ecu and all sensor and also fix in proper timings


in order to get the car start the ecu, the body computer and air bag module must came from same car and have the same vin number,otherwise ecm cut injection as antithief came on

Aug 15, 2014 | Cars & Trucks

1 Answer

Where is the fuse for the ecm located on a chevy 2005 Classic


I have never seen a fuse for an ECM but if there was one it would show you the location in the owners manual.....Did you check the fuse panel for one ? Check for power block under the hood You cant go wrong looking at the owners manual....look in the index for fuse or fuse's ..What kind of problems are you having with it ? What size engine is in it ?
Will it not crank ? ........................................Metalpoet

Mar 05, 2011 | 2005 Chevrolet Malibu

1 Answer

I have a lhs 1996 Chrysler. The car wont start and the engine fuze burns out.


I also have a 96 LHS that randomly blows the 20 amp ECM fuse. If this is what you are referring to, the problem may be in one of your ECM sensors. 1-Start by unplugging all ECM sensors (Temp, Cam, Crank, 2-O2, TPS, etc.) and replace the fuse. 2-Crank the starter (the car will not start) and see if the fuse blows. If it does you probably have an electrical problem with the ECM. 2-If the fuse does not blow, plug in only the cam sensor and start the car; it will idle rough and the check engine light will come on. If the fuse blows, the problem is the cam sensor or wiring to it. 3-Continue plugging in sensors one at a time and try starting. When the fuse blows, you will know which sensor and/or wiring to the sensor to check. This process of elimination has worked twice for me.

May 16, 2010 | Cars & Trucks

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