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Glow lights flashing on 02 isuzu npr 300 no start

No trigger supply to the start control soloniod on the injector pump rack but has the holding charge (5v) check fuses most dash globes were missing fitted glow warning light to find it flashing indicating a fault checked reistance on soloniod, checks out ok earth ok check contnuity of trigger supply (white) and module ok as is holding charge wire(red) no odometer

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  • Isuzu Master
  • 22,326 Answers

Not sure here but its a 2002 so iam assuming its a common rail diesel engine and without my head under the bonnet its difficult to say what the problem is ,i think though that you will need the dealer software to know what is happening as i suspect a fault with the ECU but as stated need head under the bonnet to be sure

Posted on Feb 15, 2012

  • j tuppin Feb 27, 2012

    It has a zexel inline pump that's been overhauled and new injectors ... Had to replace the nozzles on the new ones as one was gassing it does start but has fuel starve symptoms fuel lines replaced, pick up blown through lift pump re- kitted. slow to pick up revs almost like it's in limp mode.
    It was parked up for 6 months so I have removed the exhaust just in case it was blocked : s it's got me beat ? Turbos ok timings correct when running it doesn't smoke.

  • Colin Stickland
    Colin Stickland Feb 27, 2012

    right it sounds like an old model although its a newer year for registration so if this is the case and the glow plug lights relay is flashing then either ignore it as they can and often do this for some reason only known to the man that designed the circuit and the chips used in the unit but what i would try here first is to remove the cut of solonoid in the injector pump ,now to get to it i think you wilkl have to remove some sort of shroud around it with a maybe a electronic gizmo that is to to imobilse it without the chipped key so cut this away and then take it out and make sure that the rubber bit on the end of the weighty bit thats lifted up by the solonoid as these rubber can and do sort of perish and fall out and block the hole up ,if this is all ok then run a wire from ignition switch direct to this solonoid ,sound difficult but to a man of your capabilities this is not a problem ,but this i think is your problem either the immobilisor playing up or the solonoid rubber seal at the bottom .Have a look and see what you find

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Posted on Jan 02, 2017

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Shorty1_wt
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SOURCE: isuzu npr 5.7 gas not starting on its own

sounds like its time to replace the fuel pump.

Posted on Feb 05, 2010

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I got 97s10ex.cab zr2 and took dash out to change the air flap acuater and now the altenator won't hold a charge?? Bought new alternator and new battery. Did I miss a plug or wat??????!!!!


You mean alternator will not charge the battery, and the battery won't hold a charge? could be. there are a lot of relays under the dash. many connections some of which may have been disturbed.

Mar 09, 2015 | Cars & Trucks

1 Answer

Won't start, battery is charged


You will have to pinpoint what the engine is missing...
- Spark
- Fuel
- Compression

All three of these are tested when the engine is being cranked over. There are two way of checking for fuel. Fuel pressure and fuel trigger. Both are very important and must be present for the engine to start. Fuel pressure is self explanatory. You just hook up the gage and see what the reading is. Fuel trigger is check with a noid light. The injector gets unplugged and the noid light gets plugged in to the injector clip. With the engine cranking over, this light must blink. This is the signal to the injectors from the computer. You can have all the fuel pressure in the world, but it wont matter if the injector is not pulsing gas into the cylinder like it should.

Compression tester, spark tester, fuel pressure gage and noid light are all accessible at your local auto store. All three tests play a very important part in diagnosing a no start condition. Be extremely careful when doing these tests.

Apr 16, 2012 | 1996 Cadillac DeVille

1 Answer

1992 chevy s10 2.8l v6 tbi 2wd 5-speed. no signal on the noid light tried a new computer, new distributor, fuel pump and relay, fuses, can it be a sensor? or oil pressure switch? oxygen sensor?...


i assume your talking noid light for the injector.have you checked for battery voltage at the injector and for the ground side of the circuit at the injector as either one missing it won`t work.the injector is grounded by the computer and the power is supplied when the key is turned on.these are the two places to start to check.

May 25, 2011 | 1992 Chevrolet S-10

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Hi i have an 1986 toyota 4runner the dash lights and running lights stopped working... fuse is blown and checked wires in the tail lights, marker lights and behind the dash with no luck... is there a...


The tail and marker lights and Instrument lights are on the same circuit so both will go out if the fuse for this circuit blows. If fuse continues to fail, check the tail light or marker globes, including the globes for the number plate, for a globe that may have an internal short causing the fault and replace as necessary. As you have already checked the wiring near the light fittings for any chafed wires that could be shorting to the body causing the fault, then a closer inspection of the wires inside all the light assemblies for any shorts may be needed.

It could also be that the instrument dimmer control has failed and is causing the fault. The electronic bits inside the dimmer control for these lights sometimes go faulty. Try disconnecting the connecting plug on the rear of the dimmer control and checking if fuse still blows. If fuse continues to fail, then the fault in the tail and marker lights circuit.

Remove all the tail, number plate and running light globes from the light assemblies and leave the instrument dimmer control disconnected and check if fuse still blows.

Disconnect the plug near each of the light assemblies to see if any of the individual assemblies is causing the fault. With all light assemblies disconnected and fuse continues to fail, then the fault must be in the main wiring loom some where.

If you have a Multimeter, it could be used to determine which light assembly has a fault between the lamp supply and earth connection.

Feb 25, 2011 | 1987 Toyota 4Runner

2 Answers

TURNING OVER BUT WONT START REPLACED COIL PACK, FUELPUMP, FUEL FILTER, PLUGS AND WIRES. CANT FIGURE OUT THE PROBLEM


Have you checked the injector wiring? Each has only 2 wires you can check. If no power, test the injector power control module.

Sep 09, 2010 | 1995 Eagle Talon

1 Answer

Car cranks but dose not start, there is no power to distributator or fuel pump


I suspect the at this point, the main relay is defective. This relay controls power to fuel and spark circuits.

The PGM-FI Main Relay is actually comprised of two individual internal relays. When the ignition switch is initially turned ON , the Powertrain Control Module (PCM) supplies ground to the PGM-FI Main Relay. This ground triggers one of the PGM-FI internal relays that sends battery voltage to the fuel pump for two seconds to pressurize the fuel system.
When the engine is running the PCM supplies a continuous ground to the PGM-FI Main Relay. The supplied ground keeps the relay in the "closed" position providing electrical current to the fuel pump, keeping the fuel loop pressurized while the engine runs.
If the engine is not running with the ignition on, the PCM cuts the ground to the PGM-FI Main Relay, causing the relay to "open" and stop the electric current flow to the fuel pump. As mentioned previously, if the engine is not running, the PCM will only supply ground to the PGM-FI Main Relay for two seconds when the ignition switch is initially switched to the ON position.
The PGM-FI Main Relay also supplies electrical power to the Idle Air Control (IAC) Valve and to the fuel injectors.

TESTING


If the engine starts and continues to run, the PGM-FI Main Relay is working and does not need to be replaced.
  1. Locate and remove the relay.

On some models of the Civic and Civic del Sol it is located to the left of the steering column under the dash. Many later models position it either near the passenger right side kick panel under the dash or by the driver left side kick panel up under the dash.
  1. Attach the battery positive terminal to the No. 2 terminal.
  2. And the battery negative terminal to the No. 1 terminal.
  3. Check for continuity between terminal No. 5 and 4.
  4. If there is no continuity, replace the relay and retest

Aug 05, 2010 | Honda Civic Cars & Trucks

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I checked my spark plugs and have a spark going to each plug. I changed the fuel pump thinking I didn't have enough fuel pressure. I sprayed some starter fluid in the intake and it started for about 5...


If you are getting spark and the engine tries to run on starter fluid, then you have lost fuel. Check that you are getting injection pulses at the injectors and check the fuel pressure at the fuel rail at the injectors. Check for power to the fuel pump when the engine is cranking, If you get no power to the fuel pump when cranking the engine, check fuses and relays. If the pump is running but you have no fuel pressure, check the fuel filter and fuel pressure regulator and replace any that are faulty. If the injection pulses are missing, check the supply relay which supplies power to the injectors first ( the injectors are earthed by the ECU) Disconnect one of the injector plugs and using a test light (buy one from a auto parts store) clip the end to a good earth on the vehicle body, switch the ignition on but dont start the engine, then probe the two connections in the injector plug. One of these connections should be active all the time with the ignition switched on. If it is, you may have a sensor failure (crank sensor etc), if it is not, check fuses and supply relays. A word of warning, the wiring you are dealing with is connected directly to the engine control, if you make a mistake, you can cause irreparable damage so if you have any doubts, take the vehicle to a professional..

Jun 28, 2010 | 2002 Mitsubishi Lancer

1 Answer

My 98 dakota wont fire


Check your Automatic Shutdown Relay in your fuse and relay box under the hood by the battery. The power supplied to the fuel pump, ignition coil, fuel injectors,  and parts of the power module is controlled by the logic module through the Automatic Shutdown Relay (ASD); the idea is to shut off fuel pressure and the ignition systems when the key is turned off to prevent fires, dieseling, and other problems.
The ASD relay is closed (allowing power to flow through it) when the ignition is first turned on. If the signal from the ignition reference is lost while the engine is running, the logic module cuts power to the ASD, which in turn removes power from the fuel pump, ignition coil, injectors and those parts of the power module.  This causes the engine to shut down.

The logic module monitors the relay driver.  If it senses that the relay driver is not responding correctly it will trigger a code. If the logic module does not sense an absence of current when the circuit is open, or 12 volts DC when the circuit is closed, it knows that the circuit is open or shorted, and triggers code 42. Failure of the automatic shutdown relay is often shown as inexplicable stalling or refusal to start. Good luck and hope this helps lead you in the right direction. Hint: The ASD can be triggered by a broken wire or short in another place, e.g. the fuel pump. 

Jul 04, 2009 | 1998 Dodge Dakota

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