Question about 2004 Chevrolet Aveo 1.6

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2004 chevy aveo no injector pulse we replaced camshaft sensor and ecm still no pulse

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6ya6ya
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Posted on Jan 02, 2017

  • 39 Answers

SOURCE: Where is the camshaft position sensor located-99 Chevy Lumina 3.1

It's held down by one bolt right above the timing chain cover. It's next to the head that's facing toward the front of the car.

Posted on Feb 06, 2009

tntjasmine
  • 24 Answers

SOURCE: Rear speakers for Chevy Aveo

you can access them from under the package tray inside your trunk compartment

Posted on Aug 26, 2009

  • 72 Answers

SOURCE: how do you change an oxygen sensor on 2006 chevy aveo

There is a special socket for O2 sensors which allow the wires to stick out and not get twisted up. It's not expensive and available at most auto parts stores. Disconnect the sensor from the wiring harness, with the plug and then use the socket to remove and replace the new sensor. Re-connect electrical plug.

Please rate this answer. Thank you.

Posted on Apr 08, 2010

youngenginee
  • 57 Answers

SOURCE: 2004 Aveo Clock Repair/Replace

You will need to remove the dash board of your car.

Posted on Apr 27, 2010

  • 17 Answers

SOURCE: 2002 chevy silverado hd2500 6.0 ecm code po332 low

If all connections are good "dry, tight, no corrosion" then yes. It should be a defective sensor. These sensors are piezo sensors and create a voltage when sensing a knock. A bank refers to a side on a V style engine, 2 refers to the rear sensor on your bank 2. Bank 1 should be the side with cylinder #1 which should be the cylinder closest to you on one of the sides. So your looking for the rear sensor on the opposite side.

Posted on Jun 13, 2010

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1 Answer

No trouble codes just weak injector pulse after ignition cycle..but when starting strong injector pulse..already change crankshaft sensor learning toward camshaft sensor


strong start weak run indicates a power loss during the run cycle
Try changing the ECM with a known good unit as it may have an electronic failure internally
If you have problem cam or crank sensors, normally it will not allow spark for the engine to run

Apr 24, 2016 | Cars & Trucks

1 Answer

1990 eighty eight 3.8l. Why no fire/pulse to the injectors?


The camshaft sensor may be bad. Check the fuse for the injectors and it is possible the ECM is bad or the injector drivers more specifically are bad in the ECM .

Nov 24, 2015 | Oldsmobile Cars & Trucks

1 Answer

P0340 code


DTC P0340: Camshaft Position (CMP) Sensor Circuit
P0340 ?€¢
The ECM detects that the starter is commanded on and the engine has been cranking for more than 4 seconds without a CMP sensor pulse.


OR


?€¢
The ECM detects that the engine has started, but did not received a CMP sensor pulse during the first engine revolution.


OR


?€¢
The ECM detects that the engine is running, but does not receive a CMP sensor pulse for 800 of 1,000 engine cycles.


The 4X camshaft position (CMP) sensor circuits consist of an engine control module (ECM) supplied 5-volt reference circuit, low reference circuit, and an output signal circuit. The CMP sensor is an internally magnetic biased digital output integrated circuit sensing device. The sensor detects magnetic flux changes of the teeth and slots of a 4-tooth reluctor wheel attached to the camshaft. As each reluctor wheel tooth rotates past the CMP sensor, the resulting change in the magnetic field is used by the sensor electronics to produce a digital output pulse. The sensor returns a digital ON/OFF DC voltage pulse of varying frequency, with 4 varying width output pulses per camshaft revolution that represent an image of the camshaft reluctor wheel. The frequency of the CMP sensor output depends on the velocity of the camshaft. The ECM decodes the narrow and wide tooth pattern to identify camshaft position. This information is then used to determine the optimum ignition and injection points of the engine. The ECM also uses CMP sensor output information to determine the camshaft relative position to the crankshaft, to control camshaft phasing, and for limp-home operation.
You need a cam sensor or have wiring problem !

Apr 30, 2015 | Cars & Trucks

1 Answer

How to fix 2005 chevy aveo sedan?


The cam sensor helps the computer determine when to fire the plugs and the injectors which will set the misfire code. Have a trusted mechanic check the cam sensor.

Jul 28, 2014 | 2005 Chevrolet Aveo Sedan

1 Answer

05 chevy aveo no injector pulse


At only 30,000? This is not good advertising for Aveo! At those no-pulse times, have you checked for power at an injector connector with key on? With a new ecm, I would not expect the injector ground circuit to be the problem, so maybe you could trace the injector drive circuit back from a wiring diagram. The injectors get power to them when the key is on. They only pulse when the ecm grounds them. good luck, ken.

Nov 26, 2012 | 2002 Nissan Sentra

2 Answers

Isuzumodelftrtruck 275 H.P. shuts down and will not start.currently in dealership. Starts on 3 cylinders but will not run. They have found 1, 2 and 3 injectors earthing out. Cannot find the cause. Been...


The dealer first will need to duplicate the problem, then they will scan the system while it is occurring and decide what is causing the malfunction. Be patient and let them do there job, this may be expensive labor wise if the problem can't be confirmed easily.

Sep 28, 2012 | Isuzu Cars & Trucks

1 Answer

The pump is working but the injectors are not letting fuel in so the van can trun on. I push the little vave on the fuel rail and fuel comes out of it but it still will not trun over and run i let fuel get...


need to check the camshaft sensor and check power and fuel injector pulse from the ECM at the injectors.the camshaft sensor sends a signal to let the ECM know when and which injector to operate.

Aug 07, 2011 | 1993 Dodge Caravan

2 Answers

Turns over but wont start i got fire and fuel to the fuel rail but the injecters are not delivering fuel any ideas whats wronge


sounds like u got no injector pulse comin from ecm.we need to pull ecm codes an review them ,possible camshaft sensors faulty they usually provide reference pulses to ecm for injector firing or pulse.without this pulse ur injectors will never open up to let fuel enter combustion chamber. one way of checking pulse is to connect a noid light(small light bulb that plugs in injector pigtail to chek for power to injector and ur pulsing ground coming from ecm to injector) an test for a blinking light while cranking engine.

Apr 08, 2011 | 1998 Ford F150 Regular Cab

1 Answer

Fuel injector won't allow gas to flow into engine, have spark, have fuel psi. All fuses ok. OBD connection won't connect to reader can't get codes.


    Test fuel injector pulse and supply voltage output (test is used for most cars). This test will tell you if the computer system has operating voltage and injector trigger signal. Remove an electrical connector from a fuel injector (it doesn't matter which injector) probe both sides of the connector with a grounded test light
    (there are only two terminals). Have a helper turn the key to the "on" position without cranking the engine and observe the test light. The test light should illuminate one side of the connector only. Next, switch the test light lead to the positive side of the battery to test the system ground injector trigger, probe the side of the connector that did not light up, have a helper crank the engine over and observe the test light, it should blink on and off. If this test checks ok continue to next step. (Note: if no injector pulse is present try disconnecting the remainder of injectors and re-test, if a fuel injector is shorted it can shut down the injector driver causing no injector pulse. If injector pulse returns plug injectors electrical connectors in one at a time until the pulse fails and replace that injector)

    If this test revealed that there was no pulse but system has power the ECM is not generating a fuel injector trigger. If there is no trigger to the fuel injector it will not allow fuel to enter into the engine. Some of the most popular reasons that can cause this condition include a shorted crankshaft angle sensor, shorted camshaft position sensor or shorted ECM/PCM. (When a system trouble code scan is performed it does not always catch a crankshaft angle sensor, camshaft position sensor failure). Tip: try disconnecting all non-essential sensors, example: oxygen sensor, coolant sensor, throttle position sensor, air intake temperature sensor, mass air flow or map sensor and EGR valve pressure differential sensor. Crank the engine over, if the injector pulse returns, one of the sensors is shorted causing the system to not operate. Plug the sensors in one at a time until the injector pulse fails then replace that sensor and reassemble.
    click on this link directly for more details
    This will help. Thanks please keep updated.please do rate the solution positively .thank you for using fixya

Jan 30, 2010 | 1996 Volkswagen Golf

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