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93 astro van fuel injectors not spraying

Injectors not spraying,have fuel pressure checked injector pulse with noid light, checked relays everything looks ok.

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  • Cars & Trucks Master
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Unless you have a clogged fuel line going into the throttle body, something got missed.
With the key on, can you ground one of the injectors and make it spray ?

Posted on Jul 18, 2013

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Posted on Jan 02, 2017

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polarcycle
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SOURCE: no injector pulse, no current to the injector

Check the pickup in the distributor as this is the cam sensor. The injectors run of the pulses created while the rotor is turning around. It should be a plastic disk located under the rotor button.

Posted on Mar 13, 2009

  • 740 Answers

SOURCE: 1993 honda accord 2.2,no injector pulse

This sounds like a main relay problem here is a diagram its located under the dash under steering column its the brownish -orange box in the picture. http://www.tegger.com/hondafaq/mainrelaylocation/7-main_relay_closeup.jpg Good luck and thanks for using FIX YA

Posted on May 15, 2009

  • 7 Answers

SOURCE: crank but no start,no spark, has no pulse to

check crank sensor rear of engine.

Posted on Jan 16, 2010

dttech
  • 4803 Answers

SOURCE: vehicle came in for check

A misfire at idle that smooths out at cruise is ALMOST ALWAYS caused by a vacuum leak. Take a hard look at your fuel trims at idle. If the Bank 2 Long Term Fuel Trim is more than + a couple points higher than the Bank 1 trim, your problem is most likely a vacuum leak. If the Fuel Trims even-out while holding the engine at 2000 RPM for about 20 seconds, then a vacuum leak is DEFINITELY your problem. I would suspect a leaking lower intake gasket leak because an upper plenum leak will normally affect all cylinders.

Posted on Jan 30, 2011

  • 1 Answer

SOURCE: need help with this 93 astro van

if your gettin fire getting fuel check the fuel pressure regalater

Posted on Mar 21, 2012

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2 Answers

87 chevy s10 blazer 2.8 has power to all related components but no spray from injectors cranks but wont start


-Use noise light to check each injector wire connector to see
If there is power there or not when you crank.
-If there is not power at all then 90% the cam & crank sensor are effect.
Good luck

Mai

Jan 25, 2017 | Cars & Trucks

2 Answers

Not getting fuel out of injectors


Hi John. Have you checked at all whether you do have any electrical problem on the circuit for your injectors? or whether you do have any immobilizer which is set to cut the power to the injectors for not spraying fuel? or if you do have any relay or any ECU failure? Good Luck John.

May 07, 2015 | 2003 Ford Focus

1 Answer

Starts cold but not when warm


Are you certain that the pump is on when the no start occurs? Do you hear it turn on with key on, not start, when the engine won't fire? It should turn on for 2 seconds to pressurize the line to the injectors. If you could, check fuel pressure when the no start occurs.

If it is the injectors, buy a cheap "noid light" to check the injector circuit. Buy the one that fits your injector harness connectors. You pull off a connector to one injector and put the noid light in the connector. When cranking the engine over the noid light should be blinking-that is the pulse that fires the injectors. The injectors have battery voltage to them any time the key is on. When the ecm momentarily grounds the injector circuit (internally in the ecm), the injector is pulsed. If the noid light does not blink or even light up when cranking, the injector circuit has a problem in the power side or the ground side.

Feb 09, 2014 | 1991 Chevrolet C/K 2500

1 Answer

Why my van cranks but wont start


Hi Fabio:
Some check engine or anti-theft light there? We 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 car 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.

Also, keep in mind that CKP sensor could be failed; scanned the PCM for fault codes stored.

Hope this helps.

Jan 31, 2012 | 1996 Chrysler Town & Country

1 Answer

Replaced the Fuel Delevery System/Pump and the in-line fuel filter on my 93 GMC Vandura Van 2500. Van turnes over; however, no fuel in getting to the engine. I have checked the Fuel Pump...


install a fuel pump guage and check pressure at key on and start, it should hardly vary, it the pressure is constant check the injector signal with a noid light, while you are at it check spark(no spark no injector signal) you won't find a relay fuse

May 07, 2011 | GMC Vandura Cars & Trucks

2 Answers

Hey i was wondering what would be the problem with y van i just died and when i had it in the shp he said it was a fuel problem and i put in a new fuel pump and and fuel filter and there is still it is not...


Spray starting fluid or carb cleaner into the air intake to see if it really is a fuel problem. If it tries to start, like firing for a few seconds, it is probably not getting gas to the cylinders. Then you need to check the injector circuit. If fuel is getting up to the engine, then the pump is working, but maybe not good enough-check that by testing the fuel pressure. Hook up a fuel pressure gauge to the fuel rail, turn key to on, and you should see high pressure on the gauge, about 50 psi, but check for manufacturer specs for the correct pressure.

The injector circuit uses a fuse for the injectors, then it applies constant voltage to the injectors when the key is in on or run or start. See if you have voltage to the injectors with the key on. The injectors will pulse when the pcm momentarily grounds the injector circuit-it grounds each individual injector internally inside the computer for a split second. This causes the injector solenoid to energize and raises a pintle inside the injector so that fuel under pressure will spray out into the cylinder.

Dec 05, 2017 | 1997 Plymouth Voyager

1 Answer

My 95 buick lesabre will not start , I have change to a new fuel pump and a new cam shaft sensor. The gas is getting to the fuel rail, I have spark on all six cylinders . If i spray gas in through the mass...


Thee are a couple of things left to check. One is to hook up a fuel pressure gauge to the fuel rail and see how much pressure your getting and compare it to specs. It maybe getting fuel there but not enough pressure. To see if the injectors are being pulsed you wil need a set of noid lights. You will unplug an injector and plug in the noid light. It will flash everytime that injector is pulsed. If it never flashes your injector drivers on the ecu are bad.

Sep 20, 2010 | 1995 Buick LeSabre

2 Answers

Need help with this 93 astro van


Have you checked for injector pulse with a noid light at the injector connector? You could have a bad ecm.

Aug 12, 2009 | 1993 Chevrolet Astro

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