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Earl arnold Posted on Mar 27, 2016
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2.0l. can cam sensor affect both fuel injectors to lose power as well as ign. spark?

They both work for a second but then they lose power

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Brad Brown

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  • Hyundai Master 19,187 Answers
  • Posted on Mar 27, 2016
Brad Brown
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Not the cam sensor, the crank sensor would do this.

5 Related Answers

xalint1

xalint1

  • 152 Answers
  • Posted on Aug 16, 2008

SOURCE: loses power when driving

May just need tighten up a little check the belt see if its dry rotten.

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ghost45

PAUL MC G

  • 1280 Answers
  • Posted on Oct 03, 2009

SOURCE: Where can i buy a red engine rocker cover for my

You talking about the Cam Cover? (what used to be called the 'VALVE COVER")? WELL NOW, you can get the part you're talkling about by calling either an authorized Hyundai Parts store, or a junkyard.

Anonymous

  • 1340 Answers
  • Posted on Oct 16, 2010

SOURCE: 1995 dodge intrepid 3.3L cranks

The injectors are mainly controlled by the good output of an auto shut-down relay which is directly affected by the fuel pump relay straight from the PCM.The easiest way to check the fuel pump relay is turn on the key,wait a minute,and see if the fuel guage comes up to proper level,helps if you know fairly close how much gas you do have.A couple other things which could cause intermittent cranking are the ignition switch may be going bad,or a bad connection in the ignition wire harness but the ignition itself is way more common.Also a near dead battery.The lights will sometimes appear somewhat bright but to start requires lots and lots of power.A good battery should read near 13V.A bad one will read around 11.8,11.9V and could cause intermittent crank.A crank position sensor could cause it,but for the most part,if a sensor is bad the system either works or it does not.That's about all except do you have intermittent start or no start whatsoever,even jumpers?If this doesn't work or you need more help,just comment here and I will get an autolink to your post and reply ASAP.Good luck! Greg

Anonymous

  • 4 Answers
  • Posted on Mar 07, 2013

SOURCE: 2007 NISSAN QUEST It starts and then dies within 2-3 seconds.

hello good day, reverse your air filter, make the bottom to top,, if is not work change the high tension wires

markalator

  • 72 Answers
  • Posted on Apr 08, 2013

SOURCE: 2003 hyundai accent fault code- Crank Angle sensor PO355 Circuit A. What does circuit A mean?? No spark , no injector pulse. Have already replaced sensor.

try the cam sensor too

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0helpful
1answer

1985 Cadillac Seville 4.1 liter engine.

If you have a 1985 Cadillac Seville with a 4.1-liter engine and are experiencing an issue where one injector is losing power after the car warms up, and a second injector follows, there can be several potential causes for this problem. This issue may result in poor engine performance. Here are some common reasons why this could happen:
  1. Injector Clogging: Over time, fuel injectors can become clogged with dirt, debris, or deposits from low-quality fuel. If the first injector is losing power due to clogging, the second injector may eventually follow suit.
  2. Fuel Pressure Issues: If the fuel pressure in the fuel system is not consistent or within the specified range, it can affect the performance of the injectors. A drop in fuel pressure can lead to a loss of power in individual injectors.
  3. Electrical Issues: Problems with the electrical connections to the injectors, such as loose or corroded connectors, damaged wires, or faulty sensors, can disrupt the power supply to the injectors.
  4. ECU (Engine Control Unit) Issues: The ECU controls the injectors' operation, and a malfunctioning ECU can lead to problems with injector operation.
  5. Temperature-Related Issues: The fact that the issue occurs after the engine warms up suggests a temperature-related problem. It's possible that there's a heat-related issue affecting the injectors or their electrical connections. This could be related to poor wiring insulation, which may degrade when hot.
  6. Vacuum Leaks: Vacuum leaks in the intake manifold can disrupt the air-fuel mixture and affect injector performance. These leaks may become more pronounced as the engine warms up.
  7. Fuel Quality: Ensure that you are using good-quality fuel, as poor-quality or contaminated fuel can lead to injector issues.
  8. Throttle Position Sensor (TPS) Issues: Problems with the TPS can affect the air-fuel mixture and injector performance.
To diagnose and resolve this issue, you may need to perform a series of tests and inspections, including checking for fuel pressure, inspecting the injectors, testing the electrical connections and wiring, and examining the ECU for error codes. It may be beneficial to consult with a qualified mechanic or technician who can perform a thorough diagnostic and identify the root cause of the problem. They can use tools and diagnostic equipment to pinpoint the issue and recommend the necessary repairs or replacements.
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4answers

Changed the cam shaft sensor and the car still isn't starting

Did u just guess n hope. May just b fuelpump or worn ign parts. A scan w factorytool is most accurate
1helpful
1answer

2.0l Can cam sensor affect both fuel injectors and spark?

Yes cam sensor can have that effect. The management system needs to know which stroke the timing cylinder is on - the crank sensor supplies information about crank angle and the cam sensor tells it which stroke it is on.
0helpful
1answer

2002. Why won't it start?

Did you check voltage and ground for the other injectors to see what your losing, voltage or ground? Do an ohms test on all fuel injectors, see if reading is close to the same? I'm just wondering if you have a faulty fuel injector? The ohms reading should be close to the same for all fuel injectors. #4 may have a problem? Did you try disconnecting #4 injector for a second, to see if others would start working?
Can you check for applicable trouble codes? To check codes, yourself, at the least, you need an obd2 code reader.
Are you missing anything else, engine cranking you have good spark at all the spark plugs? You used a gage and you have proper fuel pressure, engine cranking?
0helpful
1answer

Does ignition module control fuel

there is no such model on this car.
this car has EFI, in 1992 , the 8 valve has TBI injection and the 16valve G16B had MPI (4 injectors)
both engines the ECU, creates spark at all times.
the input to the ECU is CMP /CKL cam and crank sensors
then the ECU computes ADVANCE and then drives the ignitor
next to the Ign coil. the coil charges and the ECU release this
charge and BAM , mr. Tesla inductive spark. hits the DIZZY.
that is how spark works.

the ECU controls fuel not spark , or better the ECU controls
spark INDEPENDENTLY from fuel;. (with exceptions)
exceptions:
or are you asking about the fuel safety feature built in to all EFI
cars 1988 too now? that is the ECU does monitor Spark
and CMP and CKP and does in fact cut fuel, when the ECU
sees spark missing, yes. It cuts the INJECTORS !

as does , wide open throttle cranking cuts fuel. (injection)
and fuse is (fuel pump) cut after 3 second key on, unless you crank it or runs.

see block diagram here.
http://www.fixkick.com/ECU/EFI.html
0helpful
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2002 CHRYSLER CONCORDE, 2.7 HAS NO IGN ENG HAS BEEN REBUILT. TIMING DOUBLE CK, CRANK AND CAM SENSORS REPLACED. POWER TO COILS CKD OK. FUEL INJECTORS WORKING PROPERLY, BUT STILL NO IGN SPARK. HELP!!!!

Check that the wiring harness to the coils is getting 12v, this will confirm if the pcm is sending a signal for the sparks to fire. Check the ignition coil is sending spark to the plugs with a spark plug tester.
1helpful
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So... I'm starting to get just a bit frustrated... after installing the new PCM, my dodge avenger, 96 2.0L ran for 5 days then went out again, fuel pump works and I've got spark but no start..

after all that work its terrible that something else goes bad however since you do get spark and fuel i would say crank or cam sensor but then if one of those goes bad it wont allow engine to turn over and would shut fuel pump off. so there is only one thing left to cause it you have a short in the harness somewhere maybe just a lose connection on the cam or crank sensor put dieelectric grease in all your connectors
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My 1998 Dodge Intrepid is starting & then stalling only after a few seconds. The engine light came on, & the code was P1391. Any ideas?

That code is indicating an intermittant crank shaft or cam shaft sensor fault. Because the engine is starting then stalling, check to see if you have spark after the stall. If spark is still present, you are probobley looking at a cam sensor circuit issue. The cam sensor controls the fuel injector pulse. If the cam sensor fails on a chrysler product, the fuel injectors will not function.
1helpful
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1999 range rover se changed fuel pump, truck still wont start, relays and fues look good.

why you have replaced the Fuel pump? who advised you to do so?
be guided as follow 1. on the Engine Side on the top there is a fuel rail for the injectors. turn the ign. key to the second position (on) and check the valve located on the fuel rail if fuel is coming pressurized and still won't work. then open on of the spark plugs wires and check if spark is there. (Be Careful doing that). if no spark then is there any message comes up on the Dash? if not messages then you can check the Crank Sensor if no current being generated from the ign. coils.
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