Question about 1999 Jeep Grand Cherokee

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99 jgc v8 used to get 18 mpg now gets 4-10mpg has codes

Has 6 codes PO202,P0203,P0206,P0208,P0133,P0171 RUNS A LITTLE RUFF AT IDLE BUT FIN OFF IDLE.

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  • Anonymous Dec 21, 2008

    2001 intrepid trouble code p0202,means injector #2 circuit is open or the wiring,could be computer

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P0202,203,206,208 are injector control circuit issues, this means it is either wiring harness related or powertrain control module related, P0133 and P0171 are O2 switching issues, this may be related to the injector circuit problem since it is a fuel control issue. This one is going to ake a trip to the dealer to sort out.

Posted on Nov 27, 2008

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The 0200-0299 codes are injector circut malfunctions, haw many miles are on the vehicle?
The oxygen sensor is bringing up the 0133 code has this ever been changed?
P0171 is another lean running problem i would account to the oxygen sensor which i would replace to see if this clears your problems. May need to get your injectors checked, but i would replace the oxygen sensor first.

Posted on Nov 27, 2008

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Plugs are black and smell gasy, stalls out


P0123 Throttle/Pedal Position Sensor/Switch "A" Circuit High Input (24).P0203 Injector Circuit Malfunction-Cylinder no. 3 (27).0205 Injector Circuit Malfunction-Cylinder no. 5 (27).

P0206 Injector Circuit Malfunction-Cylinder no. 6 (27).

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What does code p0203 mean for bmw 318i


Nr 3 injector faulty or open circuit to nr 3 injector. You could swap injector to another cylinder, clear the code & see if the code changes to another cylinder (PO201 nr 1, PO202 nr2 etc) then you know the injector is faulty or you could just replace & clear & see how you go. Most likly cause is the injector.

Jul 11, 2012 | 1997 BMW 318

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I have a 98 expedition 5.4 l . after warm up runs ruff at idle. codes p0171,p0174.


P0171 - Fuel system lean bank 1
P0172- Fuel System lean bank 2

First steps- search for a vacuum leak and verify proper fuel pressure.

Mar 16, 2012 | 1998 Ford Expedition

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This 1999 dodge 1500 5.9l will start and run fine till about 1500 RPM and then misfires and pings severely. [ CHRYSLER ] Record1 -> 1998~2003 -> PCM -> ECU Information Module of year: ...


Hello.. looks like you are getting good fuel delivery. Is the fuel curve mixture on the scanner in specs? How is the timing, the timing chains on these engines will stretch and throw the timing off causing a ping and missfire -- a weak valve spring is something to consider. Also, the PCM may be faulty. I hope this helps.

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06 chevy trailblazer with fault code P0506 whats best way to clean throttle body


DTC P0506

CIRCUIT DESCRIPTION

The throttle actuator control (TAC) motor is controlled by the engine control module (ECM). The DC motor located in the throttle body drives the throttle plate. In order to decrease idle speed, the ECM commands the throttle closed reducing air flow into the engine and the idle speed decreases. In order to increase idle speed, the ECM commands the throttle plate open allowing more air to pass the throttle plate. If the actual idle RPM does not match the desired idle RPM within a calibrated time, this DTC sets.

DTC DESCRIPTOR
This diagnostic procedure supports the following DTC:
DTC P0506 Idle Speed Low

CONDITIONS FOR RUNNING THE DTC
- DTCs P0068, P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0117, P0118, P0120, P0122, P0123, P0171, P0172, P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208, P0220, P0121, P0222, P0223, P0230, P0300, P0336, P0442, P0446, P0449, P0452, P0453, P0455, P0462, P0463, P0496, P1516, P2101, P2135, P2176 are not set.
- The engine is operating for at least 60 seconds.
- The engine coolant temperature (ECT) is more than -60°C (-140°F).
- The intake air temperature (IAT) is more than -10°C (-14°F).
- The barometric pressure (BARO) is more than 65 kPa.
- The system voltage is between 9-18 volts.
- The vehicle speed is less than 1.6 km/h (1 mph).
- DTC P0506 runs continuously when the above conditions are met.

CONDITIONS FOR SETTING THE DTC
- The actual idle speed is approximately 100 RPM lower than the desired idle speed.
- The above condition is present for 5 seconds.

ACTION TAKEN WHEN THE DTC SETS
- The control module illuminates the malfunction indicator lamp (MIL) on the second consecutive ignition cycle that the diagnostic runs and fails.
- The control module records the operating conditions at the time the diagnostic fails. The first time the diagnostic fails, the control module stores this information in the Failure Records. If the diagnostic reports a failure on the second consecutive ignition cycle, the control module records the operating conditions at the time of the failure. The control module writes the operating conditions to the Freeze Frame and updates the Failure Records.

CONDITIONS FOR CLEARING THE MIL/DTC
- The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
- A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
- A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
- Clear the MIL and the DTC with a scan tool.

TEST DESCRIPTION

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The number below refers to the step number on the diagnostic table.
2. This test determines whether the engine can achieve the commanded RPM. If the engine does not reach the commanded RPMs, the test determines whether the RPM is too high or too low.
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1 Answer

1998 Malibu 3.1L V6, Check Engine code P0171, Both O2 Sensors replaced, ruff idle in park, ruff idle in drive and comes to stop but smooths out, WHAT DO YOU THINK (EGR Valve?)


P0171 - is fuel system is to lean (Bank#1) Take the car back to who ever scanned it for you and see if any codes are now pressent in particular to the EGR Valve they range from P0400 up to and including P0409, or any other new codes.While you are at it make sure they erase the set code P0171 un less it is already don.If no codes show up on the new scan replace the Ignition Control Module not the ( ECM -on board computor).If new codes do show up follow up on them first. Good Luck.

Dec 08, 2010 | 1998 Chevrolet Malibu

1 Answer

I have 1996 Dodge Gran Caravan, and it gives me these codes: 27 and 43, what do they mean??


CODE 27 - Injector Control Circuit, output driver does not respond properly to the control signal

Code 27 MIL light options: OBDII
P0201 - Injector #1 Control Circuit
P0202 - Injector #2 Control Circuit
P0203 - Injector #3 Control Circuit
P0204 - Injector #4 Control Circuit
P0205 - Injector #5 Control Circuit
P0206 - Injector #6 Control Circuit

CODE 43 - Cylinder Misfire, or Ignition Primary Circuit

CODE $# MIL options: OBDII
P0300 - Multiple Cylinder Misfire
P0301 - Cylinder #1 Misfire
P0302 - Cylinder #2 Misfire
P0303 - Cylinder #3 Misfire
P0304 - Cylinder #4 Misfire
P0305 - Cylinder #5 Misfire
P0306 - Cylinder #6 Misfire
P0351 - Ignition Coil #1 Primary Circuit
P0352 - Ignition Coil #2 Primary Circuit
P0353 - Ignition Coil #3 Primary Circuit

Feb 03, 2010 | 1996 Dodge Caravan

1 Answer

My 96 v6 4.0 grand cherokee is reading these codes


douple ck all the ground wiresto engine,trans bell housing ,battery or frame/firewall look for any that may have separated from any pack of wires or broken off eyelets then thightnen all points,,.these grounds are very important to comp/injection controls and can cause a multi code problem like yours.

May 05, 2009 | 1996 Jeep Grand Cherokee

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