Question about 1998 Ford Taurus

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My 1998 ford taurus has no power to the cam sensor or the injectors I have changed cmp/ckp/pcm/fuses/relays and checked grounds

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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

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My 1995 dodge caravan trys to start but wont im getting no spark to my spark plugs


Hi mate start at the easiest point which will be to check your EARTH to make sure everything is earthed.

Feb 06, 2015 | Dodge Cars & Trucks

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Will not start and no spark


no spark , DIRECTLY at the coil> ??? if not ,THEN DO.
which engine, ? FOUR ENGINES USED. 2.5 to 5.9L????????
its a 1997, In the USA< here we have OBD2 , dirt cheap scan tools
for $9
so scan it. the OBD2 will tell you why spark fails.
not always but not looking is big time , costly.
list:
1: check all fuses. (up to 3 fuses need to be good. for EFI and spark)
2: jack in obd2 scan tool.
3: key on, see that comms with ECU work, (see TPS, see ETC temps? good. its talking.
4: crank for 5 seconds. (must be at least that) SEE RPM PID show like 250 to 300 rpm, cranking, if not, bad CKP or CMP.
5: release the key , is there a DTC stored now? 320, 340 or ?
yes, bingo, it told you.
key off now, will clear any DTCs stored, sometimes,so dont turn fast.
Let the scan tool talk to you, there are other spark codes
see alldata.com, for all codes.

Coil data:
  1. For coils manufactured by Diamond, the primary resistance at 70-80F (21-27C) should be 0.97-1.18 ohms and the secondary resistance should be 11,300-15,300 ohms.
  2. Coils built by the Toyodenso company should exhibit a primary resistance at 70-80F (21-27C) of 0.95-1.20 ohms and a secondary resistance of 11,300-13,300 ohms.

got 5v to both sensors, cKP and CMP
the white/black wire , if not you will get DTC errors above

the coil will be dead, if the automatic shut down relay is dead.
aka. ECU main relay for all cars.
THE PCM closes this relay at key on and
if the line goes dead the PCM sets a DTC code for that.
this relay applies 12v to the coil, DG/OR wire.
the PCM fires the COIL, the ignitor is in the PCM.(coil driver)
so if the relay closes, and 12v hits coil and CKP and CMP work
and the coil i good, bam spark.

the CMP in the DIZZY tells the ECU where #1 TDC is firing.
and the CKP tells exact TDC for #1
it take both working to fire correctly, due to a distributor method.
and inject.
some jeeps , the CKP can be fussy (4L). weak.
the CMP is a hall sensor very strong.
just in case, make sure the dizzy rotor spins, on the off chance
of a dead cam...... some cars have plastic cam gears and crack when cold. (fords mostly)

Dec 21, 2013 | 1997 Jeep Grand Cherokee

1 Answer

1999 Gmc Sierra 4.8L cranks/No Start Using snap-on Solus Scanner. I followed basic diagnostics: Checked fuses- good Pulled PCM and BCM codes- none No spark and no fuel. No ignition power to fuel...


Did you check your CKP and CMP power wires for a short to ground? Short to ground up stream might be pulling the voltage low from the PCM. Also.. have you pulled up the underhood fuse block just to see if there's any rodent damage to the wiring under there? That's a pretty common spot for rodents to cause problems.

Oct 03, 2013 | Cars & Trucks

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

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

1 Answer

Put afuel pump in and not getting gasstill


CHECK FUEL PUMP AND FUEL INJECTOR FUSE AND RELAY.IF BOTH OKAY.CHECK FUEL PUMP WIRING.COULD BE BAD GROUND WIRE.SCAN CAR FOR FAULTY THEFT SECURITY SYSTEM, PCM AND CAM SENSOR SINCE BOTH FIRES THE FUEL INJECTORS.

Feb 26, 2011 | 1998 Oldsmobile 88

2 Answers

What does the code p0442,p0456,p0700,p0645,p0481,p0340


CODE PO442 - EVAP SMALL LEAKED DETECTED. CODE PO456 - LEAK IN EVAP SYSTEM DETECTED. POSSIBLE CAUSES / VACUUM HOSE CONNECTIONS OR SWITCHES HAVE COME LOOSE OR MALFUNCTION / EVAP EMISSION SYSTEM HAS A LEAK / EVAP PURGE SOLENOID OPERATION HAS MALFUNCTION / NVLD SWITCH OPERATION HAS MALFUNCTION / CODE PO 700 - AUTOMATIC TRANSMISSION FAULT DETECTED .POSSIBLE CAUSE TRANSMISSION CONTROL MODULE RELATED SENSOR HAS SOLENOID IS DAMAGED OR HAS FAILED.TRANSMISSION CONTROL MODULE FAILED OR POWER CONTROL MODULE HAS FAILED.YOU TAKE VECHICLE TO DEALERSHIP THEY WILL TO SCAN TRANSMISSION. CODE PO645 - AC CLUTCH RELAY CIRCUIT MALFUNCTION . POSSIBLE CAUSE.INTERNALLY FUSED IGNITION SWITCH OUTPUT CIRCUIT IS FAULTY. AC RELAY CLUTCH CONTROL CIRCUIT IS OPEN OR IT IS SHORTED TO GROUND. AC RELAY CLUTCH POWER SUPPLY FUSED IGNITION CIRCUIT IS OPEN. AC RELAY IS DAMAGED OR IT HAS FAILED.PCM HAS FAILED. CODE PO481 - HIGH SPEED NUMBER 2 FAN RELAY CONTROL CIRCUIT. POSSIBLE CAUSE HI FAN RELAY POWER CIRCUIT IS OPEN FROM THE RELAY TO FUSED POWER.HI FAN CONTROL CIRCUIT IS OPEN OR SHORTED TO CHASIS GROUND. FAN RELAYS FAILED. PCM HAS FAILED. CODE PO340 - NO CAMSHAFT POSITION SENSOR CIRCUIT FAILURE. POSSIBLE CAUSE 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 5 VOLT SUPPLY CIRCUIT. CMP SENSOR 5 VOLT SUPPLY CIRCUIT IS OPEN OR SHORTED TO GROND OR TO BATTERY VOLTAGE. CMP SENSOR GROUND CIRCUIT IS OPEN. CKP SENSOR IS DAMAGED OR HAS FAILED.PCM HAS FAILED. SOUND LIKE PROBLEM IS PCM GROUND WIRE BROKEN OR LOOSE OR PCM HAS FAILED.

Nov 16, 2010 | 2004 Dodge Intrepid

1 Answer

My 2003 ford tauruse will not start. I do not


the pin locations are 21 & 22 on the plug.
I am working on a 02 Sable with the same problem,
let me know what you find out on this as I will be doing the same this weekend.

KK
mrkk6724@yahoo.com

Feb 07, 2010 | 2003 Ford Taurus

2 Answers

I have fuel pressure but the engine wont start unless i spray starting fluid into the intake. the injectors arent working? could it be the pcm is bad?


Not likely. I believe the injectors have 12 volts going to them all the time. The PCM then grounds them so they operate when the crankshaft or camshaft sensor tell the PCM when the cylinder is on compression stroke.

I would check for an injector fuse first (see owner manual), and then check to see if you have a bad crank or camshaft sensor.

The PCM very rarely fails.

Section 03-14: Engine Controls, Electronic 1994 All Aerostar, Ranger, and Explorer Vehicles Workshop Manual
DESCRIPTION AND OPERATION Powertrain Control Module (PCM) The center of the EEC-IV system is a microprocessor called the powertrain control module . It receives data from various sensors:
  • Throttle position sensor (TP sensor) (9B989)
  • Mass airflow sensor (MAF sensor) (12B579)
  • Intake air temperature sensor (IAT sensor) (12A697)
  • Engine coolant temperature sensor (ECT sensor) (12A648)
  • Heated oxygen sensor (HO2S) (9F472)
  • Camshaft Position (CMP) Sensor
  • Crankshaft position sensor (CKP sensor) (6C351)
  • Power Steering Pressure (PSP) Switch
The powertrain control module contains specific calibrations for optimizing emissions controls, fuel economy, and driveability. Based on information received and programmed into its memory, the processor sends signals to control various actuators:
  • Fuel injector nozzle tip (9E527)
  • Ignition coil (12029)(s)
  • Idle air control valve (IAC valve) (9F715)
  • Ignition control module (ICM) (12A297)
  • EGR vacuum regulator control (9J459)
  • EGR external pressure valve (9F483)

Aug 27, 2009 | 1987 Ford Aerostar

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