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Po843 what is the cause of this error

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Hi 2004 Chrysler Pacifica p2066 p0404 Also it drain the battery when not in use


P2066 relates to a fuel sensor level:
chrysler error code p2066 Google Search

P0404 relates to an EGR fault (Exhaust gas Recycler). You may be able to clean the EGR:
chrysler error code p2066 Google Search

Whether this is causing your battery to drain isn't clear - there are other causes of batteries discharging, such as burnt out diodes in the alternator.

Treat it as 3 faults - try and rectify the 2 error codes first (disconnect the car battery whe not in use to prevent it draining) .. and then look at the cause of the battery discharge

Mar 11, 2017 | 2004 Chrysler Pacifica

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Bad fuel economy and lumpy idling - possibly causes


<p><b><u><span>Excessive fuel consumption and 'lumpy' idling engine</span></u></b><br /> <p><b><span>Possible faults:-</span></b><br /> <p><b><u><br /></u></b><br /> <p><b><u><span>Coolant sensor </span></u></b><span><span> </span>- engine is signaled as being 'cold' all the time, not just at start up, causing ECU to set longer injection cycle </span><br /> <p><span><span>&oslash;<span> </span></span></span><span>Low coolant level can prevent sensor being able to detect coolant temperature</span><br /> <p><span><span>&oslash;<span> </span></span></span><span>Faulty 'open' thermostat allows coolant to circulate without regulation and perhaps prevents the engine from achieving normal running temperatures.</span><br /> <p><span> </span><br /> <p><b><u><span>FPR</span></u></b><span> - broken diaphragm allows fuel to enter the vacuum line and then into the inlet manifold. Additional source of fuel makes the fuel air mix richer causing a faster and lumpy idle.</span><br /> <p><span> </span><br /> <p><b><u><span>Vacuum leak </span></u></b><span>- 'high oxygen' signal from O2 sensor causes ECU to set longer injection cycle.</span><br /> <p><span> </span><br /> <p><b><u><span>O2 sensor</span></u></b><span> - 'high oxygen' sensor error causes ECU to set longer fuel injection cycle</span><br /> <p><span> </span><br /> <p><b><u><span>MAF</span></u></b><span> - 'over reads' in error the amount of air entering causing ECU to set longer fuel injection cycle </span><br /> <p><span> </span><br /> <p><b><u><span>IAT</span></u></b><span> - 'under reads' in error the temperature of incoming air causing ECU to set longer fuel injection cycle</span><br /> <p><span> </span><br />

on Jul 22, 2011 | Mercedes-Benz E-Class Cars & Trucks

1 Answer

Sensor circuit replaced and the defect still shows po843,what could be causing this reading?


A pressure switch is stuck off or damaged wire and computer thinks it's off.

Jan 19, 2015 | Honda Legend Cars & Trucks

1 Answer

2000 saab check engine light came on then it turned off at a light and car was shaking


You need to get an error code (DTC) scan and find out the specific error code. Follow up on the specific error. There are many causes to poor idling if that is the problem (e.g. a leaking turbo bypass valve actuator).
A common cause of this behavior is a faulty transmission TCC lockup (SL) solenoid. If it is this, be aware that the car manual insists on regular transmission servicing - old fluid can cause this problem with the lockup and all of the shift solenoids. This transmission was made in Japan and is expensive to repair.

Sep 27, 2014 | Cars & Trucks

1 Answer

Honda stream 2009 'D' blinking light. diagnostic says po843 code


take it in, get it fixed ? stream?) not sold here, so alldata.com has nada.
or if DIY person
RTM , read the manual the FSM. its all there, look up 843
it tells you all the tests to do , that isolates the true cause of failure.

D flash means the tranny TCM is unhappy.
the CEL glowing too.
the P0843 means.
Data:
P0843: Open in Transmission Fluid Pressure Switch A (2nd Clutch) Circuit, or Transmission Fluid Pressure Switch A (2nd Clutch) Stuck OFF

first google hit.
http://www.civicforums.com/forums/181-8th-9th-gen/351431-engine-ligh-flashing-d-p0843-what-do-next.html#post4616790

Feb 04, 2014 | Honda Cars & Trucks

1 Answer

P1300


Error Code: P0301
Description:
Cylinder 1 - Misfire Detected
Possible Cause:
Wiring.
Ignition system.
Fuel injectors.
Fuel pressure.
Running out of fuel.
EVAP canister purge valve.
Evaporative emission system.
Low compression.
Base engine problems.
Engine control module (ECM).

Error Code: P0302
Description:
Cylinder 2 - Misfire Detected
Possible Cause:
Wiring.
Ignition system.
Fuel injectors.
Fuel pressure.
Running out of fuel.
EVAP canister purge valve.
Evaporative emission system.
Low compression.
Base engine problems.
Engine control module (ECM).

Error Code: P1300
Description: Random Misfire

Possible Cause:
As above.

Jan 22, 2014 | 1996 Honda Civic

1 Answer

I just got my car scanned and a few codes pop up


Error Code: P0130
Fault:
Oxygen Sensor (O2S) 1, Bank 1 - Circuit Malfunction
Possible Cause:
Malfunction Indicator Lamp (MIL) Triggered on first occurrence.
-Wiring harness.
-Oxygen sensor (O2S).
-Engine control module (ECM).

Error Code: P0505
Fault:
Idle Speed Control (ISC) System - Malfunction
Possible Cause:
-Wiring harness.
-Idle speed control (ISC) actuator/Idle air control valve (IAC) valve.
-Throttle motor.
-Throttle valve tight/sticking.
-Engine control module (ECM).

Error Code: P0100
Fault Location:
-Mass Air Flow (MAF) Sensor/Volume Air Flow (VAF) Sensor - Circuit --Malfunction
Possible Cause:
-Wiring harness.
-Mass air flow (MAF) sensor.
-Volume air flow (VAF) sensor.
-Engine control module (ECM).

Error Code: P1491
Fault:
Exhaust Gas Recirculation (EGR) Valve Insufficient Lift
Possible Cause:
-Wiring harness.
-EGR Valve.
-ECM

Error Code:P1607
Fault:
-Engine Control Module (ECM)/Powertrain Control Module (PCM)

Error Code: P0966
Location:
-Pressure Control (PC) Solenoid B - Circuit Low
Possible Cause:
-Wiring short to earth.
-Pressure control (PC) solenoid.
-Engine control module (ECM)/Powertrain control module -(PCM)/Transmission control module (TCM) .


Apr 30, 2013 | 2004 Honda Civic

1 Answer

Engine derates when pulling heavy load code p0093


This is an error which indicates fuel leak. This can also be caused by blockage in the fuel line. Check first the fuel filter. A faulty fuel pump or fuel injector can also cause this error.

Sep 20, 2011 | 2001 Chevrolet Silverado 2500HD

1 Answer

Check engine light stays on. Had code cleared 3 times and when I drive a block it comes back on. When it starts the engine surges on its own and sometimes quits.


Perhaps you need to remember that the engine light is a victum and not a cause. Clearing the codes does not address the issue that caused it to come on.
Pull the error code and follow that indication. REMEMBER that codes are a CLUE and not necessarily the cause. For example, an intake leak will cause misfiring and that makes high hydrocarbons, and that may cause an oxygen sensor error, but the sensor being out of range is NOT the issue, but the result of the issue....

Follow the indications from the error codes. Reset, as you now know, does nothing.

Mar 17, 2011 | Isuzu Rodeo Cars & Trucks

1 Answer

Code # 0843 Code # PO335


po843 is a hydraulic pressure valve in the transmission,that will have to be replaced.The code po335 is crankshaft position sensor a circuit malfunction.The sensor could be at fault here.

Mar 29, 2010 | 2002 GMC Sierra 2500HD

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