Question about 2004 Pontiac Grand Prix

1 Answer

Readiness monitors wont reset

Repaced map sensor in 2004 rand prix. Has no codes showing but readiness will not reset.

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1 Answer

You have 8 I/M or Emission Monitors
3 continuous
5 that have to run

They should run clear after 10 or 15 miles of driving
IF,ALL problems have been resolved

The Evap Monitor will only run every few days

Any person or repair shop HAS TO Road Test with scan tool
until the monitors run,except evap,BEFORE,BEFORE,Your given
the car back

It is NOT,NOT your job to run monitors or drive cycles

You would have no idea what they are, or how to perform
them,some shops don't ,as they have no data base or care
to look up that info

Bottom Line

Your car was not properly diagnosed or repaired (YET)

No Codes on a code reader, is not the same as using professional
tools & enhanced data & other data, to find a problem

Don't need codes present to see or find things that are not right

Posted on May 10, 2014

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Posted on Jan 02, 2017

  • 128 Answers

SOURCE: Does anyone know how to reset the

Turn the key ahead to run mode, without cranking and push gas pedal to floor and back up 3 times within 5 sec, this should reset the oil change light. as for the tire pressure light there are a couple of procedures, but ensure first that the pressures are all above 28 psi, and are the same. however, without the use of a tpms tool to communicate with the tire monitor sensors it may not reset. did you have any tires changed over, or rotated? if so the use of the tpms tool is much easier to reset the light. Probably better off bringing to a tire or mechanical shop that deals with it regularly. It is actually not that difficult, but the tool will allow you to tell if a sensor is faulty, or has a weak battery, etc.. hope this helps

Posted on Jan 26, 2010

  • 4336 Answers

SOURCE: I have a Pontiac Grand Prix GT, 3.8 Liter Motor.

Change the throttle sensor first, and see if the map sensor is a victum. throttle sensor is similar to an old volume reostat, on some cars and everything else tries to do react, and everything errors out.... My bet is throttle position sensor... But you never know, it CAN be both, just usually not both.

Posted on Feb 18, 2011

Testimonial: "Thank you very much for the answer. We'll try the Throttle Position sensor first. That does make sense as to what is happening."

chico809876
  • 90 Answers

SOURCE: throttle position sensor 2004 grand prix

have someone test the T.P.S. (throttle position sensor) check to see how much a sensor is and the labor should be no more than 1/2 hour

Posted on Dec 09, 2011

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Hi there:
DTC P1133 - Insufficient switching on Bank1 Sensor1 O2 sensor.


This is the O2 sensor located in the exhaust manifold. The vast majority of the time it is a faulty O2 sensor, but check O2 wiring harness for any chafing, as well as melting(resting on exhaust manifold):



8_21_2012_6_57_12_pm.png

To replace, disconnect the harness connector, and use O2 sensor socket to remove sensor. Once you change it, the code has to be cleared with a scanner. it wont reset itself. Most major parts stores will clear the codes for free. Make sure you get a direct fit O2 sensor. The universal ones that you have to splice into dont work right most of the time. They lose voltage in the wire splice and will reset the code.



Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Aug 21, 2012 | 2004 Pontiac Grand Prix

1 Answer

Throttle position sensor 2004 grand prix


have someone test the T.P.S. (throttle position sensor) check to see how much a sensor is and the labor should be no more than 1/2 hour

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I have a Pontiac Grand Prix GT, 3.8 Liter Motor. Two codes PO108 Map/Baro CKT High Input, and PO121 Throttle/Pedal Position sens A ckt Rng/Perform, according to the scanner. Did I need a Map Sensor and...


Change the throttle sensor first, and see if the map sensor is a victum. throttle sensor is similar to an old volume reostat, on some cars and everything else tries to do react, and everything errors out.... My bet is throttle position sensor... But you never know, it CAN be both, just usually not both.

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Code 22and 34


Code 22 is Throttle position sensor was under 0.25 volts for 4 seconds after ignition was on. Code 34 is map sensor voltage was too low for 1 second under 600rpm or over 600rpm. A tps must be set with a voltage meter or scan tool for correct operation. Check the map sensor vacuum hose for leaks.

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i think it sounds like a MAP sensor... try it if u havent figured it out already yet...

http://www.autozone.com/R,868181/vehicleId,2915702/initialAction,partProductDetail/store,713/partType,00127/shopping/partProductDetail.htm

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