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93 jimmy has computer read out of MET code 23

93 jimmy has computer read out of MET code 23 what is this and how do I fix it?

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1 Answer

Keep getting fault codes 12 & 23 on 93 Olds Bravada already replaced Manifold Pressure Sensor and Intake Air Temp Sensor


The code 12 usually just means the system is in diagnostic mode. The code 23 should be for the mat system, not map.

Mat is manifold air temp.
Are there any driveability issues? Does the vehicle start and run ok?

Oct 02, 2016 | 1993 Oldsmobile Bravada

1 Answer

How do i remove and replace my center console in my 1994 jeep grand cherokee


center of dash or seats. sure seats.
no reason stated so cant know the EXTENT ?

all data com.
free 93 is here
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

read that then ask?
chapter 23, its all there read.
page 93 starts.
floor console page 130
10 steps.

manual or auto trans?, both are there.

Sep 27, 2014 | 1994 Jeep Grand Cherokee

1 Answer

I need someone to literally read what i am asking. I keep getting people telling me the same stuff that i know isnt wrong with it. I HAVE A 93 GMC JIMMY WITH THE VIN W. IT STARTS UP AND RUNS UNTIL I PUT MY...


run the fault codes to find the faulty sensor. Look for a accelerator position sensor or MAP/MAF sensor faults. If you run the codes then the CPU will tell you what is wrong

Oct 30, 2013 | 1993 GMC Jimmy

1 Answer

93 jimmy voltage gauge stays pegged all the way up when running


it could be that the regelater is kaput ,take alternator off and take to electical garage such as LUCAShave it check before you damage your electrics????****

Feb 19, 2013 | 1993 GMC Jimmy

1 Answer

Where can i find the computer on a 93 Gmc jimmy


Im pretty sure its under the dash, right under the glove box. Should have a cover over it which could be why you cant see it.

Aug 08, 2012 | Cars & Trucks

1 Answer

Symptoms of a bad map sensor on 93 cadillac fleetwood brougham


Well code 23 is a faulty signal from the manifold air temp sensor. The sensor is telling the computer the air temp in the intake is out of range compared to the other readings.
Code 26 is a quad driver problem inside the computer.
Code 34 is a MAP sensor signal saying the vacuum is high when it should be low compared to the other sensors.
They may be connected or separate issues. You could check the MAP with a vac gauge.
I would clear the codes and see which ones come back again.

Jul 21, 2012 | 1993 Cadillac DeVille

1 Answer

What do i do for code 23


Nice Jeep, I have one '93 GC Limited 5.2L V8, monster engine!!!!

About your fault code, this 23 MAT sensor or circuit, and this appears when the air charge temperature sensor signal is out of range - that is, giving a voltage not expected by the computer programmers. The power limited light will come on and the computer will assume that the temperature from the sensor is 70° F. On turbo models, the air charge sensor is located on the intake manifold. On TBI models (fuel injected, no turbocharger) the sensor is referred to as the throttle body temperature sensor and is located on the throttle body.

Possible Reasons for Chrysler Computer Fault Code 23:
- Defective Air Charge Temperature Sensor - The sensor should measure 5,290 ohms to 5,610 ohms at 77 degrees for the 1984 model year. For later models, the measurement should be between 9,120 and 10,880 ohms at 77 degrees.
- Poor wiring or connection - Read the page 'How to troubleshoot drivability issues'. Check the wiring and connections between the sensor and the logic module. Check the harness from the sensor to the computer. Inspect every connector. Clean and re-grease the connectors with dielectric grease. When setting ignition timing it may be necessary to disconnect the sensor from the harness.

Hope helps (remmeber to comment and rate this)


Its possible that you are interesting in other infomation in this links:
- read_check_engine_codes
- yourself_ecu_reset_procedure

Feel free to shared this info

Sep 29, 2010 | 1995 Jeep Grand Cherokee

1 Answer

For sevice code 23 what do i do


Nice Jeep, I have one '93 GC Limited 5.2L V8, monster engine!!!!

About your fault code, this 23 MAT sensor or circuit, and this appears when the air charge temperature sensor signal is out of range - that is, giving a voltage not expected by the computer programmers. The power limited light will come on and the computer will assume that the temperature from the sensor is 70° F. On turbo models, the air charge sensor is located on the intake manifold. On TBI models (fuel injected, no turbocharger) the sensor is referred to as the throttle body temperature sensor and is located on the throttle body.

Possible Reasons for Chrysler Computer Fault Code 23:
- Defective Air Charge Temperature Sensor - The sensor should measure 5,290 ohms to 5,610 ohms at 77 degrees for the 1984 model year. For later models, the measurement should be between 9,120 and 10,880 ohms at 77 degrees.
- Poor wiring or connection - Read the page 'How to troubleshoot drivability issues'. Check the wiring and connections between the sensor and the logic module. Check the harness from the sensor to the computer. Inspect every connector. Clean and re-grease the connectors with dielectric grease. When setting ignition timing it may be necessary to disconnect the sensor from the harness.

Hope helps (remmeber to comment and rate this).

Sep 29, 2010 | 1995 Jeep Grand Cherokee

1 Answer

Somebody needs a different transmission for their 99 jimmy. Will the one from my 93 jimmy be acceptable?


probably not. 93 was the change over year from vacuum operated to electronic.

Dec 08, 2009 | 1999 GMC Jimmy

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