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2009 chevy malibu with ecotec 2.4 start but immediatly stall fuel pressure 55 psi no catalytic converter block and no DTC, CKP and CMP got 5 volts reference my conputer read RPM so do you have any solution for me

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Posted on Jan 02, 2017

  • 66 Answers

SOURCE: hard start

Its your fuel pump.I had the same plomblem not too long ago.I was spraying either in to start it.I have a 97 chevy truck witch requires 65 psi to start and 55 to run properly.You need to find out much psi you need to start it.You can probaly look in your manual or just make a few calls.My truck had 55 psi and it ran fine i just had to get it running first.Good luck.I wonder if that fuel pressure regulator was a waste of time like it was for me.

Posted on Nov 25, 2008

  • 176 Answers

SOURCE: 1999 chevy silverado 4.8 1500 will star but not idle

Could be as simple as your fuel filter...after the truck starts..can you keep it runing by gunning the motor?

If you can feather the accelerator to keep the motor runing, I'd start at the filter, and then check the fuel pump

Posted on Dec 31, 2008

  • 5568 Answers

SOURCE: 2002 chevy malibu catalytic converter

You probably have way too much unburned fuel in your exhaust system (how's your mileage?) or possibly a failed oxygen sensor that is giving false information to the computer.

Posted on Feb 20, 2009

  • 2760 Answers

SOURCE: what is a 5 Volt Reference Circuit ?

a reference circuit is a reduced voltage(less than 12) that is current controled
without it your car may suddenly accelerate smply by you turning
your heater or Ac on (the battery voltage changes )
it's used on many cars for the sensors like the throttle posisition
or Map
if the fault code says you lost it
you got a shorted wire or sensor somewhere on the engine

consult your vehicles engine wire diagram to see what sensors run on 5 volt ref
then start lookin and unhookin
(chiltons avail in most public librarys has a good wire diagram)

Posted on Jul 15, 2009

  • 3 Answers

SOURCE: 2.2 ecotec engine. Code says random misfire. What

did you fix it? if you did what did you do? i have the same prblm thanks!

Posted on Jan 17, 2010

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2002 Chevy Avalanche 1500 5.3 will crank but not start. Changed cam crank sensor fuel pressure regulator and got 52 pounds of fuel pressure

Why did you replace cam , crank sensor's an the fuel pressure regulator too ? What is or was missing ? fuel or spark ? did you pull a plug wire an check spark . Does the check engine light ,light when the key is turned to the run position ? Do you have a professional type scan tool ? Do diagnostic's ,not guessing an just replacing part's .
056 Engine Hard to Start or No Start Misfire Scan Data
048 Engine Hard to Start or No Start Scan Data for Starting Problems
(55-62 psi) VIN: (V, T,U)
335-375 (48-54 psi) VIN: Z

Dec 03, 2017 | Cars & Trucks

1 Answer

Error code p1041 and p1047 02 chrysler sebring lxi 2.7L

Definition of Diagnostic Trouble Code P1041 Saab: Injector Cylinder 4 Shorting To Ground

There is no definition for DTC P1047

CodeDescription P1192 Inlet Air Temp. Circuit Low P1193 Inlet Air Temp. Circuit High P1195 1/1 O2 Sensor Slow During Catalyst Monitor P1196 2/1 O2 Sensor Slow During Catalyst Monitor P1197 1/2 O2 Sensor Slow During Catalyst Monitor P1198 Radiator Temperature Sensor Volts Too High P1199 Radiator Temperature Sensor Volts Too Low P1281 Engine Is Cold Too Long P1282 Fuel Pump Relay Control Circuit P1283 Idle Select Signal Invalid P1284 Fuel Injection Pump Battery Voltage Out Of Range P1285 Fuel Injection Pump Controller Always On P1286 Accelerator Pedal Position Sensor Supply Voltage Too High P1287 Fuel Injection Pump Controller Supply Voltage Low P1288 Intake Manifold Short Runner Solenoid Circuit P1289 Manifold Tune Valve Solenoid Circuit P1290 CNG Fuel Pressure Too High P1291 No Temp Rise Seen From Fuel Heaters P1292 CNG Pressure Sensor Voltage Too High P1293 CNG Pressure Sensor Voltage Too Low P1294 Target Idle Not Reached P1295 No 5 Volts To TP Sensor P1296 No 5 Volts To MAP Sensor P1297 No Change in MAP From Start To Run P1298 Lean Operation At wide Open Throttle P1299 Vacuum Leak Found (IAC Fully Seated) P1388 Auto Shutdown (ASD) Relay Control Circuit P1389 No Auto Shutdown (ASD) Relay Output Voltage At PCM P1390 Timing Belt Skipped One Tooth or More P1391 Intermittent Loss of CMP or CKP P1398 Mis-Fire Adapter Numerator at Limit P1399 Wait To Start Lamp Circuit P1403 No 5 Volts To EGR Sensor P1475 Aux. 5 Volt Output Too High P1476 Too Little Secondary Air P1477 Too Much Secondary Air P1478 Battery Temp Sensor Volts Out of Limit P1479 Transmission Fan Relay Circuit P1480 PCV Solenoid Valve P1482 Catalyst Temperature Sensor Circuit Shorted Low P1483 Catalyst Temperature Sensor Circuit Shorted High P1484 Catalytic Converter Overheat Detected P1485 Air Injection Solenoid Circuit P1486 Evap Leak Monitor Pinched Hose P1487 Hi Speed Rad Fan CTRL Relay Circuit P1488 Auxiliary 5 Volt Supply Output Too Low P1489 High Speed Fan CTRL Relay Circuit P1490 Low Speed Fan CTRL Relay Circuit P1491 Rad Fan Control Relay Circuit P1492 Battery Temperature Sensor Voltage Too High P1493 Battery Temperature Sensor Voltage Too Low P1494 Leak Detection Pump Switch or Mechanical Fault P1495 Leak Detection Pump Solenoid Circuit P1496 5 Volt Supply Output Too Low P1498 High speed Rad Fan Ground CTRL Rly Circuit P1594 Charging System Voltage Too High P1595 Speed Control Solenoid Circuits P1596 Speed Control Switch Always High P1597 Speed Control Switch Always Low P1598 A/C Pressure Sensor Volts Too High P1599 A/C Pressure Sensor Volts Too Low P1602 PCM Not Programmed P1680 Clutch Released Switch Circuit P1681 No I/P Cluster CCD/J1850 Messages Received P1682 Charging System Voltage Too Low P1683 Speed Control Power Relay Or Speed Control 12 Volt Driver Circuit P1684 Battery Disconnected Within Last 50 Starts P1685 Skim Invalid Key P1686 No SKIM Bus Message Received P1687 No Cluster Bus Message P1688 Internal Fuel Injection Pump Controller Failure P1689 No Communication Between ECM & Injection Pump Module P1690 Fuel injection pump CKP Sensor Does Not Agree With ECM CKP Sensor P1691 Fuel Injection Pump Controller Calibration Failure P1693 DTC Detected In ECM Or PCM P1694 No CCD Messages Received From ECM P1695 No CCD/J185O Message From BCM P1696 PCM Failure EEPROM Write Denied P1697 PCM Failure SRI Mile Not Stored P1698 No CCD Messages Received From PCM P1719 Skip Shift Solenoid Circuit P1740 TCC Or OD Solenoid Performance P1756 Governor Pressure Not Equal To Target At 15?20 PSI P1757 Governor Pressure Above 3 PSI When Request Is 0 PSI P1762 Governor Pressure Sensor Offset Improper Voltage P1763 Governor Pressure Sensor Voltage Too High P1764 Governor Pressure Sensor Voltage Too Low P1765 Trans 12 Volt Supply Relay Control Circuit P1899 Park/Neutral Position Switch Stuck In Park or In Gear

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Jul 26, 2015 | Chrysler Cars & Trucks

2 Answers

What is the fuel pressure specs on a Chevy cobalt 2.2 ecotec 2009

I don't know the exact pressure but 55 psi sounds good to me. Most ordinary passenger cars run at about 2 bar with something like a 5 psi increase for acceleration.
A pressure test isn't a lot of use on its own as it is possible it can provide the pressure when no demands are placed on the engine but not deliver the volume of fuel needed when demands are made. A peak pressure test and a flow test would ensure the fuel system is good.

I am wondering if the egr valve is on the same side as the lean bank? Dodgy egr valves are a big cause of bad running.

Feb 04, 2015 | 2009 Chevrolet Cobalt

1 Answer

1999 Cougar w/2.5L Duratec. The engine starts(sometimes) and will idle poorly for a minute at most. It stalls as soon as you step on it. Fuel pressure is 55 psi, replaced CKP & CMP sensors, cleaned the MAF...

Did you check the IMRC - intake manifold runner control system ? Do you know what this is ? Plastic clip breaks , actuator rod falls off . Video's on youtube .

Feb 04, 2018 | 1999 Mercury Cougar

1 Answer

Wont start

Trouble Code: P0300

Multiple Cylinder Misfire Detected
Possible Causes:

Air leak in the intake manifold, or in the EGR or EVAP system Base engine mechanical fault that affects two or more cylinders Erratic or interrupted CKP or CMP Sensor signals Fuel delivery component fault that affects two or more cylinders (i.e., a contaminated, dirty or sticking fuel injector)

Trouble Code: P0432

Catalyst Efficiency Below Normal (Bank 2)
Possible Causes:

Air leaks in at the exhaust manifold or exhaust pipes Base engine problems (high coolant or engine oil consumption) Catalytic converter damaged or has failed Front O2 older (aged) than the rear O2 (O2 is lazy) Ignition system problem (coil or plug) in two or more cylinders Vehicle driven with low fuel pressure or while very low on fuel

Jul 06, 2012 | 1999 Dodge Intrepid

1 Answer

Where could I find a list of Fault Codes for my 3.3 Litre Voyager?


P1101 HCM/PCM Communication Performance

P1103 Turbocharger Waste Gate Actuator Malfunction

P1104 Turbocharger Waste Gate Solenoid Malfunction

P1105 Fuel Pressure Solenoid Malfunction

P1195 Slow Switching O2 Sensor Bank One Sensor One During catalyst monitoring

P1196 Slow Switching O2 Sensor Bank two Sensor one During catalyst monitoring

P1197 Slow Switching O2 Sensor Bank One Sensor two During catalyst monitoring

P1198 Radiator Temperature Sensor Input voltage too high

P1199 Radiator Temperature Sensor Input voltage too low

P1281 Engine is cold too long

P1282 Fuel Pump Relay control circuit

P1283 Idle select signal invalid

P1284 Fuel Injection pump battery voltage sensor out of range

P1285 Fuel Injection pump controller always on

P1286 Accelerator Position Sensor (APPS) supply voltage too high

P1287 Fuel Injection pump Controller Supply voltage low

P1288 Intake manifold short runner tuning valve solenoid circuit

P1289 Manifold tune valve solenoid circuit

P1290 CNG Fuel system pressure too high

P1291 No Temp rise seen from intake heaters

P1292 CNG Pressure sensor voltage too high

P1293 CNG Pressure sensor voltage too low

P1294 Target idle not reached

P1295 No 5 volts to TP sensor

P1296 No 5 volts to MAP sensor

P1297 No change in MAP sensor from start to run

P1298 lean operation at wide open throttle

P1299 Vacuum Leak detected (IAC fully seated)

P1300 Ignition timing adjustment circuit failure

P1388 Auto shutdown relay control circuit

P1389 No ASD relay output voltage at PCM

P1390 Timing belt skipped one tooth or more

P1391 Intermittent loss of CMP or CKP

P1398 Mis-Fire Adaptive Numerator at Limit (PCM is unable to learn the crank sensors signal

for use in preparation for misfire diagnostics

P1399 Wait to start lamp circuit

P1403 No 5 volt feed to EGR

P1475 Auxiliary 5 volt supply is too high

P1476 Too little secondary air

P1477 Too much secondary air

P1478 Battery Temp Sensor Volts out of limit

P1479 Transmission Fan Relay Circuit

P1480 PCV Solenoid Circuit

P1481 EATX (Electronic Automatic Transaxle) RPM pulse generator performance

P1482 Catalyst Temperature Sensor Circuit shorted low

P1483 Catalyst Temperature Sensor Circuit shorted high

P1484 Catalytic Converter overheat detected

P1485 Air injection solenoid circuit

P1486 EVAP Leak Monitor found a pinched hose

P1487 Hi Speed Fan #2 Circuit

P1488 Auxiliary 5 volt supply output is too low

P1489 High speed fan control relay circuit

P1490 Low speed fan control relay circuit

P1491 Radiator fan relay control circuit

P1492 Ambient/ Battery Temp sensor input voltage too high

P1493 Ambient/ Battery Temp sensor input voltage too low

P1494 Leak detection pump pressure switch or mechanical fault

P1495 Leak detection pump solenoid circuit

P1496 5 volt supply, output too low

P1498 High speed radiator fan ground control relay circuit

P1500 General alternator 'FR' Terminal circuit fault

P1594 Charging system voltage too high

P1595 Speed control solenoid circuits

P1596 Speed control switch always high

P1597 Speed control switch always low

P1598 A/C pressure sensor input voltage too high

P1599 A/C pressure sensor input voltage too low

P1680 Clutch released switch circuit

P1681 No I/P Cluster CCD/ J1850 messages received

P1682 Charging system voltage too low

P1683 Speed control servo power control circuit

P1684 The battery has been disconnected within the last 50 starts

P1685 The SKIM (Smart Key Immobilizer Module) has received an invalid key

P1686 No SKIM (Smart Key Immobilizer Module) bus message received

P1687 No Mechanical Instrument cluster bus message

P1688 Internal Fuel injection pump controller failure

P1689 No communication between the ECM and injection pump module

P1690 Fuel injection pump CKP sensor does not agree with the ECM CKP sensor

P1691 Fuel injection pump controller calibration error

P1692 Fault in companion Engine control module

P1693 A companion DTC was set in both the ECM and PCM

P1694 No CCD message from PCM- Aisin transmission

P1695 No CCD message from body control module

P1696 PCM failure EEPROM write denied

P1697 PCM Failure SRI (Service Reminder Indicator) mileage not stored

P1698 No CCD message from TCM

P1719 Skip shift solenoid circuit

P1740 TCC solenoid or overdrive solenoid performance

P1756 Governor pressure not equal to target at 15-20 psi

P1757 Governor pressure is above 3 PSI when 0 PSI is requested

P1762 Governor pressure sensor offset improper voltage

P1763 Governor pressure sensor voltage to high

P1764 Governor pressure sensor voltage to low
P1765 Transmission 12 volt supply relay control circuit

Oct 03, 2010 | 1998 Plymouth Voyager

1 Answer

After a stop, 2003 GMC Safari act like gas filter or catalityc converter is plug. No power at all, then, 5 seconds later I start rolling, vehicle will get the normal power and kick in. Got code 0016 on...

The power-train (ECM) supplies a 12-volt reference circuit and a low reference circuit to both the crankshaft position (CKP) sensor and the camshaft position (CMP) sensor. The CKP sensor sends a signal to the PCM with each revolution of the crankshaft. The CMP sensor sends a signal to the PCM with each revolution of the camshaft. This diagnostic (DTC) monitors the CKP signal and the CMP signal to determine if they are synchronized. If both signals are not observed by the PCM within a narrow period of time, the PCM will determine that an error has occurred and DTC P0016 will set.

Mar 17, 2010 | 2003 GMC Safari

1 Answer

How do i change the crank positioning sensor on a 8.1 liter chevy silvarado?

Crankshaft Position Sensor: Service and Repair
Crankshaft Position (CKP) Sensor Replacement
IMPORTANT: Care must be taken when removing the crankshaft position (CKP) sensor. Use penetrating oil and allow to soak around the CKP
sensor before removing the sensor. Twist the sensor to break the O-ring seals loose. When removing the sensor, pull the sensor straight out of the
engine block at the same angle the sensor was installed. Failure to be careful may result in sensor damage.
1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.
2. Disconnect the crankshaft position (CKP) sensor harness connector at the CKP sensor.
3. Remove the fuel line bracket and retaining bolt.
4. Use penetrating oil and allow to soak around the CKP sensor before removing the sensor.
5. Remove the CKP sensor retaining bolt.
6. Prior to removal of the CKP sensor, rotate the sensor back and forth.
7. Remove the CKP sensor at the same angle at which the CKP sensor was installed.
IMPORTANT: Inspect the CKP sensor O-ring for wear or damage. If a problem is found, replace the O-ring. Lubricate the new O-ring with engine
oil before installing.
1. Install the CKP sensor at the same angle at which the CKP sensor was removed.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the CKP sensor retaining bolt.
Tighten the bolt to 12 N.m (106 lb in).
3. Connect the CKP sensor harness connector.
4. Install the fuel line bracket and retaining bolt.
5. Lower the vehicle.
6. Perform the CKP System Variation Learn Procedure. See: Testing and Inspection/Programming and Relearning


Crankshaft Position Sensor: Service and Repair
CKP System Variation Learn Procedure
IMPORTANT: For additional diagnostic information, refer to DTC P1336.
1. Install a scan tool.
2. With a scan tool, monitor the powertrain control module for DTCs. If other DTCs are set, except DTC P1336, refer to Diagnostic Trouble Code
(DTC) List for the applicable DTC that set.
3. Close the vehicle's hood.
4. With a scan tool, select the crankshaft position variation learn procedure.
5. Observe the fuel cut-off for the engine that you are performing the learn procedure on.
6. The scan tool instructs you to perform the following:
^ Apply the vehicles parking brake.
^ Block the drive wheels.
^ Cycle the ignition from OFF to ON.
^ Apply and hold the brake pedal.
^ Start and idle the engine.
^ Turn OFF the A/C.
^ Place the vehicle's transmission in Park (A/T) or Neutral (M/T).
^ The scan tool monitors certain component signals to determine if all the conditions are met to continue with the procedure. The scan tool only
displays the condition that inhibits the procedure. The scan tool monitors the following components:
- Crankshaft position (CKP) sensors activity - If there is a CKP sensor condition, refer to DTC P0335 or DTC P0336.
- Camshaft position (CMP) sensor activity- If there is a CMP sensor condition, refer to DTC P0341, DTC P0342 or DTC P0343.
- Engine coolant temperature (ECT) - If the engine coolant temperature is not warm enough, idle the engine until the engine coolant
temperature reaches the correct temperature.
7. With the scan tool, enable the crankshaft position system variation learn procedure.
IMPORTANT: While the learn procedure is in progress, release the throttle immediately when the engine starts to decelerate. The engine control is
returned to the operator and the engine responds to throttle position after the learn procedure is complete.
8. Slowly increase the engine speed to the RPM that you observed.
9. Immediately release the throttle when fuel cut-off is reached.
10. The scan tool displays Learn Status: Learned this ignition. If the scan tool does NOT display this message and no additional DTCs set, refer to
Symptoms - Engine Mechanical. If a DTC set, refer to Diagnostic Trouble Code (DTC) List for the applicable DTC that set.
11. Turn OFF the ignition for 30 seconds after the learn procedure is completed successfully.

Sep 11, 2009 | 2001 Chevrolet Silverado 2500HD

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