Question about 1997 Chevrolet Cavalier

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P1629 code and I have the solution please help me figure it out. The engine starts and stops. CKP sensor and CMP have signal, no pulse or spark ignition

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 173 Answers

SOURCE: my 1998 ford taurus has no power to the cam sensor

HI first does your check engine light come on when you turn the ignition switch on ,second if engine light comes on disconnect tps sensor ,dpf sensor,and fuel pressure sensor see if you got your power to injector and cam sensor power try starting engine whit this sensors disconnected if engine runs ,now try connecting a sensor at a time try to start your engine, if it doesn't you found the sensor that is shorting your circuit, hope this helps you,

Posted on Sep 26, 2009

  • 1 Answer

SOURCE: No spark in my 1992 Chevy Camaro RS 3.1L engine rotates but doesn't engage.

Hi Candie, if you have air, fuel and spark it should run. Getting to the fuel side-"is fuel getting into the engine?" Your ignition may work, your starter may work, fuel pump may work, but if you have an ignition key with a resistor inside it (little silver piece of metal in the plastic of the ignition key) the key, it could be bad and will shut down the fuel injector. It's part of the security system if some idiot tries to break the steering column to steal your car. It won't run.
I have a 92 Z28 with a 350 and I had to get a new ignition with resistor and correct resistor ohm key. About $400.00 bucks but if you search around Z28 forums there are ways to bypass this for less $$ if you want to.

Posted on Aug 22, 2008

  • 366 Answers

SOURCE: 97 Chevy Astro van lugs, like it misses, B4 finally cranking on

crank shaft sen. is easy enough to change.its mounted near timing chain cover,cam sen.is somewhat harder,its in the distributor,id doubt that both are defect

Posted on Mar 10, 2009

moparownr
  • 667 Answers

SOURCE: OBD II Problem

the code refers to the crankshaft and camshaft sensors, the crank sensor has a higher failure rate, but usually the engine will not start or run when it does. the camshaft sensor can fail and the engine will still run. I would check the connections to each sensor for damage or corrosion, the system has lost signal from one of them, if you check them with an OHM meter they should not measure open

Posted on Apr 08, 2009

  • 24 Answers

SOURCE: my 2001 3.9 dakota have a misfire condition at cold

My 2001 Dakota now works fine, I took it to a good reliable shop after much frustration. The problem was the crank position sensor in combination with an bad oxygen sensor. This was a very unusual problem with no consistency therefore hard to diagnose. Crank sensor $190.00 cdn oxygen sensor $130.00 cdn $300.00 in troubshooting, repair and diagnostics. Repaired by Gerald at AutoPro in Corner Brook, Newfoundland. Thanks Gerald

Posted on Apr 23, 2009

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1 Answer

Does a 2004 chevy venture van have a coil pack?


Your Van ? Yes it does !
• Ignition control module (ICM) and ignition coils
Three dual tower ignition coils are mounted to the ICM, and are serviced individually. The ICM performs the following functions:
- The ICM receives and processes the signals from the CKP sensor B.
- The ICM determines the correct direction of the crankshaft rotation, and cuts spark and fuel delivery to prevent damage from backfiring if reverse rotation is detected.
- The ICM determines the correct coil triggering sequence, based on the 7X CKP signal. This coil sequencing occurs at start-up, and is remembered by the ICM. After the engine is running, the ICM will continue to trigger the coils in the correct sequence.
- The ICM produces and inputs 3X reference signals to the PCM.
- The ICM contains the coil driver circuits that command the coils to operate.
• Crankshaft position (CKP) sensors
The CKP sensor B is a variable reluctance sensor. The magnetic field of the sensor is altered by a crankshaft mounted reluctor wheel that has seven machined slots, six of which are equally spaced 60 degrees apart. The seventh slot is spaced 10 degrees after one of the 60 degree slots. This sensor provides the ignition control module (ICM) with 7X signals, or seven pulses for each revolution of the crankshaft. The pulse from the 10 degree slot is known as the sync pulse. Both of the sensor circuits are connected to the ignition control module (ICM). A signal converter within the ICM produces digital 3X output pulse to the powertrain control module (PCM), the 3X reference is known as the low resolution engine speed signal.
The CKP sensor A contains a hall-effect switch. A hall-effect switch is a solid state switching device that produces a digital ON/OFF pulse when a rotating element passes between the sensor tip and a magnet. This rotating element is called an interrupter ring or blade. In this case the interrupter ring has 24 evenly spaced blades and windows and is part of the crankshaft damper assembly. This sensor provides the PCM with 24X signals, or 24 identical pulses per crankshaft revolution. The 24X signal is used for enhanced smoothness and idle stability at a lower calibrated RPM. The PCM supplies the sensor with a 12-volt reference, low reference, and signal circuit.
• Camshaft position (CMP) sensor
The CMP sensor signal is a digital ON/OFF pulse, output once per revolution of the camshaft. The CMP sensor does not directly affect the operation of the ignition system. The CMP sensor information is used by the PCM to determine the position of the valve train relative to the crankshaft position. By monitoring the CMP and CKP signals the PCM can accurately time the operation of the fuel injectors. The PCM supplies the sensor with a 12-volt reference, low reference, and signal circuit.

Jun 13, 2017 | Cars & Trucks

2 Answers

Replaced timing belt and water pump on a 2005 dodge neon with a 2.0 it starts and idals great but you press or reve it up it backfires through the intake and pulls up code p0344. whats the problem.


Hi Ricky, I'm glad to help. Below is the possible causes for the P0344 code that you have.



Symptom:
P0344-CAMSHAFT POSITION SENSOR INTERMITTENT
When Monitored and Set Condition:
P0344-CAMSHAFT POSITION SENSOR INTERMITTENT

When Monitored: Engine running or Cranking.
Set Condition: When the failure counter reaches 20. One Trip Fault.
POSSIBLE CAUSES

GOOD TRIP EQUAL TO ZERO
WIRING HARNESS INSPECTION
(K7) 5 VOLT SUPPLY CIRCUIT OPEN OR SHORTED TO GROUND
TONE WHEEL/PULSE RING INSPECTION
CHECKING CKP SIGNAL WITH THE DRBIII
t LAB
CAMSHAFT POSITION SENSOR
(K44) CMP SIGNAL CIRCUIT OPEN
(K44) CMP SIGNAL CIRCUIT SHORT TO GROUND
(K44) CMP SIGNAL CIRCUIT SHORTED TO B+
(K44) CMP SIGNAL CIRCUIT SHORT TO (K7) 5 VOLTS
PCM

Apr 18, 2014 | 2005 Dodge Neon

1 Answer

2005 chrysler 300c trouble codes p0344, p0016 p0061c


Trouble Code: P0344

Camshaft Position Sensor Circuit Intermittent

Possible Causes:


.Wiring harness fault.5v supply circuit open or shorted to ground.Tone wheel/pulse ring is damaged or corroded.CMP Sensor has failed.CMP Sensor signal circuit is open, shorted to ground or battery. voltage or 5v supply.CMP Sensor ground circuit is open.PCM has failed.Trouble Code: P0016

Crankshaft/Camshaft Timing Misalignment

Possible Causes:


.Base engine problem (i.e., the camshaft timing is not correct).Intermittent condition.CKP or CMP Sensor signal is erratic (check with lab scope).Tone wheel or pulse wheel is damaged or contains debris.CKP or CMP Sensor, harness or connector has failed.PCM has failed.Trouble Code: P0061

Engine Temperature Control Level 2 RPM Performance

Possible Causes:


PCM need to be reprogrammed.PCM has failed.

Oct 27, 2012 | 2005 Chrysler 300

1 Answer

Please Help 2004 dodge neon have spark engine cranks new camshaft sensor and coil does not pop w/ starting fluid code 340on reader



Trouble Code: P0340

No Camshaft Position Sensor Circuit Failure
Possible Causes:


CMP Sensor connector is damaged, open or it is shorted CMP Sensor signal circuit is open or shorted to ground or to battery voltage or 5v supply circuit CMP Sensor 5v supply circuit is open or shorted to ground or to battery voltage CMP Sensor ground circuit is open CMP Sensor is damaged or has failed CKP Sensor is damaged or has failed PCM has failed

Jun 08, 2012 | 2004 Dodge Neon

1 Answer

Where is the cam sensor at



Description & Operation

2.5L Engines
On the 2.5L 4cylinder engine the Camshaft Position (CMP) sensor is located in the distributor.
The sensor contains a Hall effect device called a sync signal generator to generate a fuel sync signal. This sync signal generator detects a rotating pulse ring (shutter) on the distributor shaft. The pulse ring rotates 180 degrees through the sync signal generator. Its signal is used in conjunction with the Crankshaft Position (CKP) sensor to differentiate between fuel injection and spark events. It is also used to synchronize the fuel injectors with their respective cylinders.
When the leading edge of the pulse ring (shutter) enters the sync signal generator, the following occurs: The interruption of magnetic field causes the voltage to switch high resulting in a sync signal of approximately 5 volts. When the trailing edge of the pulse ring (shutter) leaves the sync signal generator, the following occurs: The change of the magnetic field causes the sync signal voltage to switch low to 0 volts. 4.0L

The Camshaft Position Sensor (CMP) on the 4.0L 6cylinder engine is bolted to the top of the oil pump drive shaft assembly. The sensor and drive shaft assembly is located on the right side of the engine near the oil filter.
The CMP sensor contains a Hall effect device called a sync signal generator to generate a fuel sync signal. This sync signal generator detects a rotating pulse ring (shutter) on the oil pump drive shaft. The pulse ring rotates 180 degrees through the sync signal generator. Its signal is used in conjunction with the crankshaft position sensor to differentiate between fuel injection and spark events. It is also used to synchronize the fuel injectors with their respective cylinders.
When the leading edge of the pulse ring (shutter) enters the sync signal generator, the following occurs: The interruption of magnetic field causes the voltage to switch high resulting in a sync signal of approximately 5 volts.
When the trailing edge of th4.7L

The Camshaft Position Sensor (CMP) on the 4.7L V8 engine is bolted to the front/top of the right cylinder head.
The CMP sensor contains a Hall effect device called a sync signal generator to generate a fuel sync signal. This sync signal generator detects notches located on a tone wheel. The tone wheel is located at the front of the camshaft for the right cylinder head. As the tone wheel rotates, the notches pass through the sync signal generator. The pattern of the notches (viewed counter-clockwise from front of engine) is: 1 notch, 2 notches, 3 notches, 3 notches, 2 notches 1 notch, 3 notches and 1 notch. The signal from 5.7L V8 Engines

The Camshaft Position Sensor (CMP) on the 5.7L V-8 engine is located below the generator on the timing chain / case cover on the right/front side of engine.

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Fig.

The CMP sensor is used in conjunction with the crankshaft position sensor to differentiate between fuel injection and spark events. It is also used to synchronize the fuel injectors with their respective cylinders. The sensor generates electrical pulses. These pulses (signals) are sent to the Powertrain Control Module (PCM). The PCM will then determine crankshaft position from both the camshaft position sensor and crankshaft position sensor.
The tone wheel is located at the front of the camshaft (2). As the tone wheel rotates, notches (3) pass through the sync signal generator.
When the cam gear is rotating, the sensor will detect the notches. Input voltage from the sensor to the PCM will then switch from a low (approximately 0.3 volts) to a high (approximately 5 volts). When the sensor detects a notch has passed, the input voltage switches back low to approximately 0.3 voltsthe CMP sensor is used in conjunction with the crankshaft position sensor to differentiate between fuel injection and spark events. It is also used to synchronize the fuel injectors with their respective cylinderse pulse ring (shutter) leaves the sync signal generator, the following occurs: The change of the magnetic field causes the sync signal voltage to switch low to 0 volts

Jun 08, 2012 | 1999 Jeep Grand Cherokee

1 Answer

What is code P1351


Dec 30, 2011 | 2003 GMC Yukon Denali

1 Answer

Hey i just helped my friend put a motor in is 99 gt, it turns over but no spark from the coils, ive tried eveything i can think of and still nothing


what motor?

Is the PCM power relay activating? If yes, you should hear the fuel pump hum for 5 seconds when the key is turned to ON.

If yes, then check the crankshaft position sensor and camshaft position sensors to be sure they have output to the PCM.

The crankshaft position sensor:
  • sends the powertrain control module a signal indicating crankshaft position.
  • is essential for calculating spark timing.
Crankshaft Position Sensor (Integrated Ignition Systems) The crankshaft position (CKP) sensor is a magnetic transducer mounted on the engine block adjacent to a pulse wheel located on the crankshaft. By monitoring the crankshaft mounted pulse wheel, the CKP is the primary sensor for ignition information to the powertrain control module (PCM). The trigger wheel has a total of 35 teeth spaced 10 degrees apart with one empty space for a missing tooth. The 6.8L ten cylinder pulse wheel has 39 teeth spaced 9 degrees apart and one 9 degree empty space for a missing tooth. By monitoring the trigger wheel, the CKP indicates crankshaft position and speed information to the PCM. By monitoring the missing tooth, the CKP is also able to identify piston travel in order to synchronize the ignition system and provide a way of tracking the angular position of the crankshaft relative to fixed reference (Figure 23) .


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 20) and the two pin connector variable reluctance sensor (Figure 21).



A4 CHECK VREF VOLTAGE TO THROTTLE POSITION (TP) SENSOR
  • Disconnect TP sensor.
  • Key on, engine off.
  • Measure voltage between VREF and SIG RTN circuit at the TP sensor harness connector. Refer to the schematic in Pinpoint Test DH .
Is voltage between 4.0 and 6.0 volts? -------- A17 CHECK PCM DRIVER TO COILS
  • Connect incandescent test lamp between B+ and each coil driver circuit at the harness connector.
  • Crank engine.
Does lamp blink consistently and brightly (one blink per engine revolution)?

Jul 24, 2011 | 1999 Ford Mustang Cobra

1 Answer

No fault codes but no spark or fuel pump operation


if you have NO spark NO injection pulse suspect a Camshaft Position Sensor(CMP), that is the sensor that tells the computer your ignition firing and timing and pulse width for your injectors once it has received a signal from your Crankshaft Position Sensor (CKP) the 2 sensors work together to achieve the correct combination for start up

Aug 25, 2010 | 2002 Kia Sportage

3 Answers

What does code p1391 mean when failing an emissions test


intermittent loss of crankshaft or camshaft position sensor.

Oct 14, 2009 | 1997 Dodge Ram 1500 Club Cab

1 Answer

Trouble codes


Trouble Code: P0139
O2 (B1 S2) Slow Response
Trouble Code Conditions:Engine started; vehicle driven at 20-55 mph with the throttle open for 2 minutes; ECT at more than 158ºF (70C); catalytic converter temperature is more than 1112F (600C); and EVAP purge is active. O2 Sensor signal voltage switches less than 16 times from lean to rich within 20 seconds during monitoring, or will compare the state of change between the front and rear O2 Sensors and if the differences are greater than a calibrated amount, the DTC will set. 3 good trips are required to turn off the MIL.
Possible Causes:
  • Exhaust leak
  • O2 element is contaminated, deteriorated or it has failed
  • O2 signal circuit or return circuit has failed

Trouble Code: P0344
Camshaft Position Sensor Circuit Intermittent
Trouble Code Conditions:Engine cranking or running; system voltage over 10.5v. The PCM detected an intermittent loss of the CMP Sensor signal during the period of 2.5 complete engine revolutions. The failure counter must reach 20 before this code matures and a code is set.
Possible Causes:
  • Wiring harness fault
  • 5v supply circuit open or shorted to ground
  • Tone wheel/pulse ring is damaged or corroded
  • CMP Sensor has failed
  • CMP Sensor signal circuit is open, shorted to ground or battery voltage or 5v supply
  • CMP Sensor ground circuit is open
  • PCM has failed
  • Trouble Code: P0340
    No Camshaft Position Sensor Circuit Failure
    Trouble Code Conditions:Engine cranking or running, system voltage over 10v. The PCM detected CKP pulses without detecting any CMP Sensor pulses for 5 seconds or 2.5 engine revolutions.
    Possible Causes:
  • CMP Sensor connector is damaged, open or it is shorted
  • CMP Sensor signal circuit is open or shorted to ground or to battery voltage or 5v supply circuit
  • CMP Sensor 5v supply circuit is open or shorted to ground or to battery voltage
  • CMP Sensor ground circuit is open
  • CMP Sensor is damaged or has failed
  • CKP Sensor is damaged or has failed
  • PCM has failed
Good luck....

Nov 05, 2008 | 2005 Chrysler PT Cruiser

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