Question about 1992 Ford F250

1 Answer

Check eng lite comes on

When the light comes the eng loss power . Now I have replaced the O sensor an the map sensor and I don't know how to check for codes HELP

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 319 Answers

Some of the auto parts stores will do an engine code check for free. I would call around your area to find out if that is the case.

Posted on Jul 14, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My Dodge Stratus (1998 4 cyl) check Engine light is on. The error code says oxygen sensors were bad. Both oxygen sensors have been replaced. After resetting the check Eng light. The oxygen sensor


the upper 02 sensor is for air fuel mix while the secondary 02 sensor is for the operation and status of the catalitic converter are you sure the catalitic converter is not plugged. Could be if you have had a loss of power

Sep 16, 2014 | 1998 Dodge Stratus

1 Answer

Engine codes 34


not sure how low ur talking, but is your chk engine light on? Try some new plugs, and an oil change too. If the chk eng lite is on more likely the knock sensor is shot and its hard to get to. But also try some good gas and not cheap stuff either....make sure ur parking brake isnt on too...it happens.

Dec 10, 2013 | 1995 Nissan Maxima

1 Answer

Grand cherokee error code 13,16,24,27,36,51


Hi there: Definetivelly you have a problem with emission and injection syste,, check this code descriptions...

DTC 13 - MAP (Manifold Absolute Pressure) sensor pneumatic failure: sensor output does not change
Power loss light: On
Limp-in mode: TPS and engine speed used as an indication of manifold pressure

Possible Causes:
Broken or disconnected vaccum line - Check the vaccum line leading from the MAP sensor. On '87 and later engines, the sensor is located on the right shock tower and the vaccum line often gets pulled or pushed off. Replace the entire line with a piece of 1/8" I.D. vaccum hose making sure to provide enough slack in the line.

Bad Baro-read solenoid - The barometric read solenoid may not be operating. Try bypassing the solenoid, connecting the MAP sensor directly to the manifold to see if the engine runs better (this may not prevent the code 13, however). If not accompanied by a code 37, you can try to repair or replace the solenoid. See the Understanding Solenoids page for information about how to test and repair solenoids.

Moisture in MAP sensor - If this mostly occurs old cold weather, then you may have water that is freezing inside the sensor. This is a common problem on vehicles that have the sensor located on the logic module. Remove the sensor and bring inside to warm up. Shake any droplets out of the sensor and set it in a warm, dry place for a day or so. Don't try to take the sensor apart because you may destroy it. Check all your vaccum lines because a vaccum leak would be the most likely cause of water entering the system. If your MAP sensor is located on or near the logic module, you may wish to consider moving it under the hood on the right shock tower. All 1987 and later models were set up this way to prevent moisture collection in the MAP sensor.

Pinhole leak in Fuel Pressure Regulator - Occasionally, a small leak will develop in the fuel pressure regulator diaphram that allows fuel to enter the vacuum system. This upsets the response of the vacuum system, triggering this code. Check for the presence of fuel in the vacuum line to the fuel pressure regulator. If fuel is present, replace the regulator.

MAP sensor failure - A bad MAP sensor will usually cause a code 14, so this is not as likely to be the cause of a code 13. But if it comes down to it, replace the MAP sensor which is located on the right shock tower on '87 and later vehicles or in the logic module on previous vehicles. Damage from freezing water can destroy a MAP sensor.

DTC 16 - Loss of battery voltage detected with engine running
Power loss light: On
Limp-in mode: 25% alternator field coil duty cycle

Possible Causes:
Blown fusible link to power module (or SMEC) - Check the only white fusible link (may look grey if dirty) by tugging on it. A good link will feel solid while a blown link will stretch like a rubber band. It is the white link on the two-link circuit (not the four or five link circuit). This link supplies power to the ASD relay and the voltage sense input on the logic module (may be accompanied by a code 42). See the Fusible Links page for more details.

Bad connection or wiring - Check the wiring and connections between the alternator and the battery, power module and the alternator field coil, and the voltage sense line through the power and logic modules.

Alternator failure or bad voltage regulator circuit - See the Diagnosing Your Charging System page.

Diagnostic Method
Trigger Parameters
- 60 seconds after engine startup
- Voltage sense input is below 8.5V
Results If Component Fails
If the voltage sense input is between 4V and 8.5V, the logic module will full-field (100% duty cycle) the alternator field coil for 20 seconds. If the voltage sense input is still below 8.5V, the system enters limp-in mode, the power loss light is turned on, a fault code 16 is stored, and the alternator field coil driver will enter a fixed, 25% duty cycle.

If the voltage sense input is below 4V, the system enters limp-in mode, the power loss light is turned on, and a fault code 16 is stored. The alternator field coil driver will enter a fixed, 25% duty cycle to prevent overcharging of the battery, but allow the vehicle to operate.


DTC 24 - Throttle position sensor (TPS) signal is out of range
Power loss light: On
Limp-in mode: MAP sensor is used as an indication of thottle position

Possible Causes
TPS failure - The TPS is located on the throttle body on the opposite side of the throttle cable. Turn the engine off, disconnect the sensor and test it by connecting an ohmmeter (preferably an analog one) between the center and either outside pin of the sensor. Slowly open the throttle all the way and then slowly close it again. The ohmmeter should show a constant, smooth change in resistance as the throttle is moved. If there are any jumps in reading or no change in reading at all, replace the sensor. If the sensor seems ok, reconnect the sensor cable and turn the ignition on. One outside wire should be 5V, the other ground. The voltage on the center wire should vary as the throttle is opened (about 0V closed, 3V wide open). If power or ground is not present, check the wiring.

Bad connection or wiring - Check the wiring and connections between the sensor and the logic module (or SMEC). Clean and regrease any corroded connectors with dielectric grease. Check connections if there is no power or ground, or for shorts if there is power and resistance, but no output.

Diagnostic Method
Trigger Parameters
- Sensor output less than 0.16V or greater than 4.7V
Results If Component Fails
Fault code 24 is stored, the power loss light is turned on, and the logic module will enter limp-in mode. The logic module will then use the MAP sensor as an indication of the thottle position. A MAP sensor voltage less than 2.0V is considered closed throttle and a MAP sensor voltage greater than 2.0V is considered wide open throttle (WOT).


DTC 27 - Injector driver circuit 2 open or shorted
Power loss light: Off
Limp-in mode: None

Possible Causes
Bad connection or wiring - Check the wiring and connections to injectors 3 and 4 in the injector harness (above the fuel rail) and between the harness and the power module (or SMEC) and the injector contol lines between the logic module and power module. Clean and regrease any corroded connectors with dielectric grease and repair any shorts.

Injector driver transistor failure - Check the injector signals coming from the power module (or SMEC). They should rise to about 12V when the injector is off and drop close to 0V when the injector is on. If they are out of spec, you may need to replace the power module.

Diagnostic Method
Trigger Parameters
- Near 0V or near 12V not detected when the injector driver is turned on or off, respectively
Results If Component Fails
Fault code 27 is stored.


DTC 36 - For MPI N/A engines

Description: Air switching solenoid circuit is open or shorted
Power loss light: Off
Limp-in mode: None

Possible Causes
Bad connection or wiring - Check the wiring and connections between the logic module and the solenoid. Clean and regrease any corroded connectors with dielectric grease and repair any shorts.

Bad solenoid - The solenoid is located in the right, front fender next to one to three other solenoids. See the Understanding Solenoids page for information about how to test and repair solenoids.

Diagnostic Method
Trigger Parameters
- Near 0V or near 12V not detected when the solenoid is turned on or off, respectively
Results If Component Fails
Fault code 36 is stored.


DTC 51 - Oxygen sensor output indicates lean too long
Power loss light: Off
Limp-in mode: Engine allowed to run rich, but prevented from running lean

Possible Causes
Bad oxygen sensor - Replace the sensor which is located on the turbo housing near the down pipe (for turbo) or on the down pipe near the exhaust manifold.

Bad connection or wiring - Check the wiring and connections between the sensor and the logic module (or SMEC). Clean and regrease any corroded connectors with dielectric grease and repair any shorts. Look for melted wire insulation near the exhaust manifold. A shorted connection to ground or any positive source will cause this fault code.

Low fuel rail pressure - See the Diagnosing Your Fuel System page.

Diagnostic Method
Trigger Parameters
- In closed-loop
- Sensor output indicates lean for more than 715 seconds (11 minutes, 55 seconds)
Results If Component Fails
A fault code 51 is stored, the circuit stays in closed-loop, and the logic module will still monitor the oxygen sensor signal. If the condition persists for four times what it took to set the code, the logic module will allow the engine to run rich, but prevent it from running lean.

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.

Dec 21, 2011 | Jeep Grand Cherokee Cars & Trucks

2 Answers

1995 jeep wrangler when cranking sometimes check eng. lite doesnt come on when this happens i have no spark.cranks good but no spark. when the check eng lite does come on when cranking then the jeep would...


Your ecu is in need of repair. Your jeep has what is known as the "delayed check engine light problem". Time has taken it's toll on some of your ecu's internal components, the ones that supply power the fuel and ignition circuit relays. The ecu is slow to supply power to the circuits in the morning, causing the delay. Your jeep may also have a bad crank sensor, which would cause the sudden shutdown while driving. Your ecu can be repaired or replaced, your choice. Both options are available on ebay.

Sep 30, 2011 | 1995 Jeep Wrangler

1 Answer

My engine lite stays on, codes P0526 and P0106 are coming up..we replaced the fan clutch but the lite stays on..what else could be wrong with these codes


You don't say if the codes are same after fan clutch replacement, if you still get the P0526, you may have a bad clutch or a defective wire harness.
For the P0106, this is indicating a problem in the MAP sensor area. In order to check the MAP sensor you need a highend scan tool. But before changing anything, do a thorough cleaning of the throttle body first, make sure to clean the front and rear sides. Also disconnect the battery while doing the cleaning, this will reset the computer to factory defaults and allow it to relearn to the cleaned throttle body.

Sep 03, 2011 | 2005 Chevrolet TrailBlazer

1 Answer

Check eng light comes on and then loss of eng power


The check engine light/service engine soon (yellow light) comes only when the computer control unit (called the PCM) senses a fault in the electronic controls of the engine and/or the emission system u will seldom feel the car engine run any different, there are about 200 possible faults that turn the light on, to know what has developed a problem you must have the system tested, this is called an OBD2 fault code test, Kragen and Autozone parts stores do this testing for free.

Sep 25, 2010 | 1999 Ford F350 Regular Cab

2 Answers

97 grand am 3100 wont start check eng lite dont


if you havn't replaced the fuel pump yet that should do the problem

Oct 20, 2009 | 1997 Pontiac Grand Am

2 Answers

Idling


is the check eng lite on ?

Nov 15, 2008 | 1994 GMC Safari

1 Answer

Eng check lite


weird. usually an intermitent problem like that for are o2 sensor means that your catalytic converter is starting to cause problems but that should only set a code for sensor 2 not both sensors. sorry i cant be more help

Oct 21, 2008 | 2001 Mitsubishi Montero

Not finding what you are looking for?
1992 Ford F250 Logo

Related Topics:

93 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts

yadayada
yadayada

Level 3 Expert

61292 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Fordexpert

Level 3 Expert

5331 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...