Question about 2006 Chrysler PT Cruiser

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2006 PT Cruiser Check Engine Light Codes P0122 TPS and P2074 MAP

The car's check engine light comes on during normal driving and will feel like it loses almost all power and then when you try to accelerate, it sputters and sometimes dies.  Other times the light will come on and when you accelerate, the car will rev up to about 4500 rpm even if you floor the gas pedal.  The car will shake and feels like it's going to fall apart and it's not a good situation when it dies on the interstate, which has happened several times.  This cycle will last for about 1 to 3 days and will come back on, then go off, then come back on, etc.  I took it to a mechanic and they read the codes P0122 TPS and P2074 MAP.  What is the fix for this problem, either do it yourself or by a mechanic?  What is the approximate cost associated with this problem?

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  • durbs75 Jun 16, 2009

    Matt UK,


    Thank you very much for the input and advice. I will definitely take this to my mechanic and see what he can do. You have a great day and thanks again for the help.

  • Matt UK May 11, 2010

    TPS = Throttle Position Sensor
    MAP = Manifold Pressure

    The fault codes are indicating an abnormal reading from one of the above sensors. This could be a fault with a sensor itself, or it could be something like a split in a rubber hose causing a loss of pressure.

    The reason that the engine is running roughly and will not rev over 4500RPM is because the engine management system has switched over to an emergency running mode to prevent possible damage. (it does this when it can no longer rely on a signal from a sensor.)

    The good news is that it is unlikely to be a major job getting it repaired, and shouldn't be too expensive as it will probably only require the replacement of an ancillary component.

    It's probably best to let a mechanic with suitable diagnostic equipment tackle the repair, otherwise you will have to work on a trial and error basis of replacing sensors (which could prove more expensive in the long run!)

    It's difficult to say what the cost would be without knowing exactly what is causing the fault, but I would not imaging that it would take more that an hour or two to repair.

    Hope this helps.

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SOURCE: Diagnostic Code P2074 on 2007 PT cruiser-can't find on OBD list.

P2074-manifold Pressure/throttle Position Correlation

CORRELATION - HIGH FLOW/VACUUM LEAK

When Monitored: Engine Running, during all drive modes.
Set Condition: If vacuum drops below 1.5 Hg with engine RPM greater than 2000 RPM
at closed throttle.

POSSIBLE CAUSES

VACUUM LEAK
HIGH RESISTANCE IN MAP (K7) 5 VOLT SUPPLY CIRCUIT
RESISTANCE TO GROUND IN MAP (K7) 5 VOLT SUPPLY CIRCUIT
MAP SENSOR
HIGH RESISTANCE IN (K1) MAP SIGNAL CIRCUIT
RESISTANCE TO GROUND IN (K1) MAP SIGNAL CIRCUIT
HIGH RESISTANCE IN (K4) MAP GROUND CIRCUIT
PCM
TP SENSOR OPERATION
HIGH RESISTANCE IN (K6) TP SENSOR 5 VOLT SUPPLY CIRCUIT
RESISTANCE TO GROUND IN (K6) TP SENSOR 5 VOLT SUPPLY CIRCUIT
TP SENSOR
HIGH RESISTANCE IN (K22) TP SIGNAL CIRCUIT
RESISTANCE TO GROUND IN (K22) TP SENSOR SIGNAL CIRCUIT
HIGH RESISTANCE IN TP (K4) SENSOR GROUND CIRCUIT

Posted on Mar 27, 2009

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redbeard00
  • 957 Answers

SOURCE: Diagnostic Code P2074 on 2007 PT cruiser-can't find on OBD list.

Are you sure its P2074. only asking because IM having a hard time finding it. If it was P0274 that would of been a injector issue(high voltage) on cyl. #5. if i find anything else I'll contact you.

Posted on Apr 27, 2009

  • 10 Answers

SOURCE: 2005 pt cruiser engine lite comes on then the car

you need to have this checke out at ashop theycan runthe codes for you

Posted on Jun 16, 2009

  • 1 Answer

SOURCE: Check engine light comes on, car sputters, loses power

you need to change you crank shaft positioning censor

Posted on Sep 06, 2009

  • 5 Answers

SOURCE: 2001 PT Cruiser: How too remove crankshaft pulley 2001 PT Cruiser...

GET A 3 SPOKE PULLEY EXTRACTOR AND SCREW IN THE BOLT BUT IN THE CRANKSHAFT HOLE PUT A MUCH SMALLER SCEW SO YOU WOUNT MESS THE INSIDE UP

Posted on May 26, 2010

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