Question about 1995 Chevrolet Corsica

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Changed fuel pump, pcm, camshaft sensor. - 1995 Chevrolet Corsica

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  • Chevrolet Master
  • 2,101 Answers

Are there any codes. if you press the gas will it stay running

Posted on Nov 09, 2012

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6ya6ya
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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: 2001 cavalier barely starts,sometimes runs

Three things.
First, you need to check the MAF sensor for contamination.

Second, check fuel pressure, if you dont have a gauge, autozone and Advance have them on their tool loaner program.
Should see 35-40 psi with key on engine off, cycle key a few times, if it takes a while to build up, replace filter and retest.

Third, possible convertor blockage, easiest check is to remove the 02 sensor and try to start with the hole open, if it runs, then that is it, specs allow for 2-3 lbs of back pressure max. That means if you can hear pressure escaping, it is a problem area.

Posted on Sep 01, 2008

ourhowse
  • 2007 Answers

SOURCE: CAR WILL START AND RUN FOR A FEW SECONDS THEN DIES

Mass air flow sensor.

Posted on May 13, 2009

  • 5 Answers

SOURCE: 1987 Chevrolet S-10 Pickup1987 chevy s10 2.5l tbi

Check the trottle body postioning sensor...

Posted on Jul 19, 2009

pippall
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SOURCE: 1987 chevy S10 engine idle problem

relace the throtle air idle valve.The temp switch will allso cause this problem.

Posted on Jul 19, 2009

morrison888
  • 4 Answers

SOURCE: 1989 Chevy Cavalier z24

i think you have the rong elecricale cords
or batterys or its oil

Posted on Aug 10, 2009

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Where is 2003 ford focus camshafts position sensor


Camshaft Position Sensor
The camshaft position (CMP) sensor detects the position of the camshaft. The CMP sensor identifies when piston No. 1 is on its compression stroke. A signal is then sent to the powertrain control module (PCM) and used for synchronizing the firing of sequential fuel injectors. The Coil On Plug (COP) Ignition applications also use the CMP signal to select the proper ignition coil to fire. The input circuit to the PCM is referred to as the CMP input or circuit.
There are two types of CMP sensors: the three pin connector Hall-effect type sensor (Figure 25) and the two pin connector variable reluctance sensor

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and next the location of 2003 ford focus camshafts position sensor
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Sep 13, 2014 | 2003 Ford Focus

1 Answer

New fuel pump and still wont start


do you hear fuel pump operation if yes replace fuel filter.if you dont hear fuel pump running could have open short in fuel pump harness or could have faulty fuel pump relay faulty automatic shut down relay,fuse or PCM.if fuel system okay check for spark at spark plugs no spark could have faulty ignition coil,camshaft sensor or crankshaft position sensor.

Aug 15, 2013 | 2000 Chrysler 300M

1 Answer

1999 ranger wont start


If that was my vehicle I would not have changed one part

I would have gotten out my wiring diagrams & walked thru a
logical sequence of testing what I had & didn't have, as far
as crank sensor output,fuel pressure,injector pulse,etc

Seeing a how pcm's seldom fail ,your just throwing parts at it
& not testing a thing

You need the wiring diagrams to see & learn how the various
systems work

You can actually trigger injectors,coils,relays,etc if you can
use diagrams, test light,meter & jumper wires properly,otherwise
you need professional help

Jan 08, 2013 | 1999 Ford Ranger SuperCab

1 Answer

Hard to start at times hot or cold


engine wont start cold or hot could be fuel problem.check for fuel or spark.try doing little troubleshooting make sure sparkplugs and wires good condition.fuel filter been changed.engine need fuel and spark ignition to run.turn ignition on listen for fuel pump operation in fuel tank if no check fuel pump fuse and relay.if fuse relay okay.problem could be the fuel pump but first use code scanner look for PCM, CRANKSHAFT POSITION SENSOR,CAMSHAFT SENSOR AND DISTRIBUTOR IGNITION FAULT CODE.MAKE SURE YOU HAVE FUEL INTANK I SEEN THAT HAPPEN BEFORE.

Dec 27, 2012 | 2002 Lexus RX 300

1 Answer

2003 vibe will not start


Do you know what Camshaft Actuator System is ?
The standard compression pressure is 1,400 kPa (203 psi).
The camshaft position (CMP) actuator system enables the powertrain control module (PCM) to change camshaft timing while the engine is running. The CMP actuator assembly (5) varies camshaft position in response to directional changes in oil pressure. The CMP actuator solenoid valve controls the oil pressure that is applied to advance or retard the camshaft. Modifying camshaft timing under changing engine demand provides better balance between the following performance concerns:
• Engine power output
• Fuel economy
• Lower tailpipe emissions
The CMP actuator solenoid valve (3) is controlled by the PCM. The crankshaft position (CKP) sensor (4) and the CMP sensor (1) are used to monitor changes in camshaft position. The PCM uses information from the following sensors in order to calculate the desired camshaft position:
• The engine coolant temperature (ECT) sensor
• The mass air flow (MAF) sensor
• The throttle position (TP) sensor
• The vehicle speed sensor (VSS)

This mite be something to look at , Is cam timing advanced or retarded . The ) CMP Actuator Assembly !

Mar 22, 2017 | 2003 Pontiac Vibe

2 Answers

I REPLACED MY FUEL PUMP ON MY 1999 CHEVY SILVERADO EXT CAB P/U TRUCK AND IT CRANKS BUT IT WILL NOT START...ANY SUGGESTIONS?


did you check for fuel pressure at the fuel rail?
listen for the fuel pump when you turn the key on
did you change the wire harness when you changed the pump?

Sep 25, 2011 | Cars & Trucks

1 Answer

Engine light is on...


P0137--O2 Sensor Circuit Low Voltage-Bank 1 Sensor 2

P0139--O2 Sensor Circuit Slow Response-Bank 1 Sensor 2

P0152--O2 Sensor Circuit High Voltage-Bank 2 Sensor 1

P0300--Random Multiple Cylinder Misfire


I would suspect that the camshaft position sensor is bad. This is a quote from the tech manual:

The Powertrain Control Module (PCM) uses the camshaft position sensor to manage sequential fuel injection and as part of misfire diagnosis. The PCM constantly monitors the number of pulses on the signal circuit. The PCM compares the number of camshaft sensor reference pulses and the number of crankshaft position sensor reference pulses received. If the PCM receives an incorrect number of pulses, Diagnostic Trouble Codes (DTCs) should be stored in the PCM. Some PCM systems will then default to multi-port or "gang-fire" injector operation. The camshaft position sensor signal is required to sequence the injector operation to the proper cylinder timing. If the camshaft position sensor or circuit is faulty, most engines will start. However, the PCM misfire diagnostic will likely be affected.

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The part costs $50.....simple to change. It is NOT the O2 sensors so don't go wasting money on those. They are being affected due to related symptoms....they fault because the problem is happening upstream.

Oct 01, 2009 | 2002 Dodge Intrepid

1 Answer

How do you change the cam shaft sensors


OperationThe CMP sensor provides camshaft position information which is used by the PCM for fuel synchronization. The CMP sensor detects the position of the camshaft. The CMP sensor identifies when piston No. 1 is on its compression stroke. A signal is then sent to the PCM and used for synchronizing the sequential firing of the fuel injectors. Coil-on-plug (COP) ignition applications use the CMP signal to select the proper ignition coil to fire. The input circuit to the PCM is referred to as the CMP input or circuit. DTC P0340 is associated with this sensor.

Removal & Installation
  1. Disconnect the battery ground cable.
  2. Remove the Camshaft Position (CMP) sensor as follows:
    1. Disconnect the CMP sensor electrical connector (1).
    2. Remove the bolt retaining the CMP sensor (2).
    3. Remove the CMP sensor (3).
  3. To install, reverse the removal procedure.
  4. Use a new O-ring, lubricated with clean engine oil.
  5. Tighten the sensor to 15 ft. lbs. (20 Nm).
Testing With the CMP sensor connector disconnected, measure the resistance between the sensor pins. Resistance should be between 250-1000 ohms.
dd496ed.jpg

Fig. Showing the CMP sensor pins


Good luck (rated this help).

Sep 03, 2009 | 2004 Ford Focus

2 Answers

Jeep won't start until a clicking sound comes from fuse box


The click you hear is the fuel pump relay. It gets its signal to energize from the PCM.If you have a faulty Crankshaft Position Sensor, the PCM will not work. Check for a bad fuel pump relay and also all of the other sensors: Camshaft Position Sensor, MAP Sensor, Idle air Control, Intake Air Sensor,etc.

Mar 21, 2009 | 1995 Jeep Cherokee

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