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Old 06-05-2015, 06:22 PM   #1
Jaybone586
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Default Codes codes and more codes 99sl2

When I first start it up no matter what time of day or temp car is running bad and stalls then about 10 min at a consistent speed it goes away the codes I'm getting 0404 0405 1404 0341 could one set others off? I replaced the egr and still doing it I'm stumped anyone help me thanks.
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Old 06-05-2015, 11:53 PM   #2
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2003 L-Series 3.0L Sedan
Default Re: Codes codes and more codes 99sl2

Any history to this car?
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Old 06-06-2015, 07:18 AM   #3
Jaybone586
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Default Re: Codes codes and more codes 99sl2

Yes the engine has been rebuilt new trimming chain new temp sensor has about 20000 miles on rebuild other than this problem car runs like a dream burns no oil
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Old 06-06-2015, 09:11 AM   #4
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Default Re: Codes codes and more codes 99sl2

P0404, P0405 and P1404 are egr valve issues. The egr valve only operates during acceleration and cruise, closed while idling or wide open throttle. To check for blocked passages of either the exhaust or intake port under the egr valve; remove it and start the engine - the intake port, if not blocked with carbon exhaust, should have the engine rev up to it's redline limiter and stay there. A blocked intake port from exhaust build up won't allow the engine to rev to its programmed redline. The exhaust port should blow out any loose carbon as the engine runs. If the engine redlines, do this for only a few seconds then shut it off. Testing the intake and exhaust ports covers only the engine. P1404 may be for egr valve failure so testing/eliminating the ports first may reveal a blocked port before troubleshooting a faulty egr valve.

P0341 is about the pseudo cam position error code - an ignition system problem related to the ignition control module and two coils. Remove and clean them of corrosion, paint corroded parts and use some dielectric grease on plug boots to prevent future corrosion and lube them from heat bonding to the plugs. Swapping coils may eliminate the error code too.

Hopefully some minor maintenance will eliminate these error codes and allow a new second life to this car.
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Old 06-06-2015, 09:21 AM   #5
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Default Re: Codes codes and more codes 99sl2

P0341 is usually plug wires 1 & 4 not properly run from the coil packs to the valve cover. Wires 2 & 3 can't run between them at any point, the coil towers need to be clean and the spark plug caps need to be clean.

The other 3 indicate an electrical problem with the EGR wiring. Skip P0404 for now, P0405 and P1404 issues can cause it.
Quote:
Originally Posted by P01404 - EGR Closed Position Performance
The exhaust gas recirculation (EGR) valve consists of a pintle valve which moves by the use of an internal solenoid and an internal position sensor, potentiometer, used to determine pintle valve position. The powertrain control module (PCM) controls the solenoid by supplying it ignition voltage whenever exhaust gas needs to be recirculated into the intake manifold. The PCM monitors the EGR solenoid and position sensor circuits for correct voltage levels at certain times. The PCM will also monitor the position of the sensor in relation to its duty cycle, commanded On-time. DTC P1404 sets when the EGR sensor signal voltage is above the calibrated voltage value when the valve is commanded closed.

DTC Parameters
DTC P1404 will set if the actual EGR position is greater than 4 percent when:

The commanded EGR position equals 0 percent.
The condition exists for longer than 20 seconds.
The engine speed is less than 5,000 RPM.
The EGR valve has been commanded to cycle greater than 61 percent 4 times.
The ignition voltage is greater than 11 volts.
OR

The actual EGR position is greater than 7.8 percent when:

The commanded EGR position equals 0 percent.
The condition exists for longer than 20 seconds.
The engine speed is greater than 5,000 RPM.
The EGR valve has been commanded to cycle greater than 61 percent 4 times.
The ignition voltage is greater than 11 volts.
DTC P1404 diagnostic runs continuously once the above conditions have been met and the engine is running.

DTC P1404 is a type A DTC.

Diagnostic Aids
If DTC P0403 or P1403 is set, diagnose that DTC first. A diagnosed EGR solenoid fault will cause this DTC to set.

Use a scan tool to command the EGR SOLENOID ON (pulse width modulation - PWM), while monitoring the EGR SENSOR. The values for the EGR SENSOR at a commanded state of 0 percent and 70 percent should fall within these ranges:

0 percent commanded state equals 0.5-1 volts from EGR SENSOR.

70 percent commanded state equals 4.2-4.7 volts from EGR SENSOR.

An open in circuit 452 or short to voltage on circuit 1456 will set this DTC.

Debris or binding pintle shaft holding EGR valve open may also set this DTC.
Quote:
Originally Posted by P0405 EGR Position Sensor Low Voltage
The exhaust gas recirculation (EGR) valve consists of a pintle valve which moves by the use of an internal solenoid and an internal position sensor (potentiometer) used to determine pintle valve position. The powertrain control module (PCM) controls the solenoid by supplying it ignition voltage whenever exhaust gas needs to be recirculated into the intake manifold. The PCM monitors the EGR solenoid and position sensor circuits for correct voltage levels at certain times. DTC P0405 sets when the EGR sensor signal voltage is below the calibrated voltage value.

DTC Parameters
DTC P0405 will set if EGR sensor voltage is less than 0.35 volts when:

The condition exists for longer than 5 seconds.
The ignition voltage is greater than 11 volts.
The engine is running.
DTC P0405 diagnostic runs continuously with engine running and ignition voltage over 11 volts.

DTC P0405 is a type B DTC.

Diagnostic Aids

Important
If DTC P1635 is set, diagnose that DTC first.


To locate an intermittent problem, use a scan tool to monitor EGR SENSOR voltage with ignition ON, engine OFF. Wiggling wires while watching for a change in EGR SENSOR voltage may locate the area where an open or short to ground in the wiring could lie.

Normal closed position values from the EGR sensor should never be less than the calibrated value listed under DTC parameters.

EGR is disabled for the entire ignition cycle if DTC P0405 fails within that ignition cycle.

PCM may command EGR solenoid ON at any engine coolant temperature (ECT) regardless of loop status.
...
The proper way to fix a S-Series automatic is to replace it with a manual
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