Question about 1999 Lincoln Town Car

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Lackspower on acceleration

Runs at well until you step on throttle such as passing

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  • Lincoln Master
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Clean your throttle at the butterfly with throttle cleaner .or remove the throttle body and clean it.

Posted on Dec 29, 2013

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Posted on Jan 02, 2017

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How to reset ECU,Throttle and Accelerator Position Learning


Hi.

Below the procedure to reset ECU,Throttle and to perform Accelerator Position Learning on Nissan. It works on Titan, Altima, Infinity, pathfinder and other models.

ECU Resetting


While performing the procedures below, ensue that you are respecting the times stated. If the steps are not done within the specified times, the module will not reset. You will need to use a watch or a chronograph while performing the procedures.

Procedure:

1. Ensure that the accelerator pedal is fully released, set ignition switch to the “ON” position, then wait 3 seconds.
2. Follow the steps a and b below, repeat the two steps in sequence quickly for five times within 5 seconds.
a. Push hard the accelerator pedal untill fully depressed.
b. Release the accelerator pedal in full.
3. Wait 7 seconds, then depress the accelerator pedal completely, and hold it for about 10 seconds until the CEL (check engine light) starts blinking.
4. Release the accelerator pedal while the CEL is still blinking.
5. Wait 10 second.
6. Depressthe accelerator pedal in full and hold it for 10 seconds or more.
7. Fully release the accelerator pedal while the CEL light keeps flashing.
8. Turn the ignition switch to “OFF” position and start the vehicle. If procedure has been done correctly, then the light light will turn off.
If the light continues to stay on, repeat the procedure.

Accelerator Pedal Release Position Learning

Procedure

1. Ensure that the accelerator pedal is completely released before starting the procedure.
2. Turn the ignition switch “ON” and wait at least 2 seconds.
3. Turn the ignition switch “OFF”, and wait at least 10 seconds.
4. Turn the ignition switch “ON” and wait 2 seconds.
5. Turn the ignition switch “OFF” and wait 10 seconds.

Throttle Valve Closed Position Learning

Procedure

1. Ensure that accelerator pedal is completely released.
2. Turn ignition switch to the “ON” position.
3. Turn ignition switch to the “OFF” position and wait at least 10 seconds.
Ensure that the throttle valve moves after turning the switch off.

Idle Air Volume Learning (Throttle Position Learning)

Procedure

1. Follow the Accelerator Pedal Released Position Learning described above.
2. Do the Throttle Valve Closed Position Learning also described above.
3. Start the engine, and allow warming up.
4. Turn the ignition on “OFF” positionand wait 10 seconds.
5. Ensure that accelerator pedal is fully released, then turn the ignition switch to “ON” position, and wait 3 seconds.
6. Repeat the steps a and b below five times within 5 seconds in sequence.
a. Push hard the accelerator pedal untill fully depressed.
b. Release the accelerator pedal until reaching full extension.
8. Wait 7 seconds or more, depress the accelerator pedal completely and hold the pedal down for about 20 seconds until you see that the Check Engine Light stops blinking and starts getting steady..
9. Rrelease completely the accelerator pedal within 3 seconds after the light coming ON.
10. Start engine and let it run at idle for about 20 seconds.
12. Test the engine to ensure the idle speed and ignition timing are set correctly.

Regards.

on Mar 25, 2010 | Nissan Titan Cars & Trucks

1 Answer

I'd like to get step to step instructions on how to clean the throttle body in my 2010 Jeep Patriot


  1. Purchase "02 Sensor Safe" throttle body cleaner spray;
  2. Drive the vehicle a few miles, bringing it to full operating temperature, then park it in your driveway with the engine still running;
  3. Gain access to the throttle body, and hold your thumb on the butterfly linkage so that you can open the throttle butterfly when the engine begins to load;
  4. Begin by spraying throttle body cleaner spray on all linkages around the throttle body. If the engine begins to bog because it is aspirating throttle body cleaner, quickly open the throttle butterfly to keep the engine running.
  5. Once you have cleaned all around the throttle body, spray cleaner DIRECTLY INTO THE THROTTLE BODY, opening the throttle sufficiently to keep the engine running. It will run rough during this process but try not to let the engine stall.
  6. If the engine stalls, restart it, and continue cleaning the throttle throat until you see clean metal.
  7. Pour some fuel system cleaner into the gas tank and drive the car a little more before parking it. Try to find an excuse to accelerate hard, WIDE OPEN THROTTLE momentarily if safely possible (as when accelerating to merge into traffic on a highway).
  8. Drive back home.
  9. Done.

Jul 19, 2014 | Jeep Patriot Cars & Trucks

1 Answer

My 88 toyota camry wont accelerate when i step on the gas pedal


tests:

cruise at say 45mph ok?
if i accelerate , it bogs then catches up?
if i accelerate, it bogs and never catches up?
if i go WOT, wide open throttle it has full power up a hill after the bog?

these test , are the KEY tests.
this tells me what is wrong.
i hope the car is tuned up, if not , why no? the 60k mile done?

Jan 25, 2014 | 1988 Toyota Camry

1 Answer

1993 festiva replaced the throttle body gasket now will not accelerate at temp


I have a 1997 ford E 150 customize mark 3 van have driven back and forth to work 5 years ran great Christmas Day drove down to the garage and back up to house and now it will not start turns over has spark will not fire

Jan 07, 2014 | 1993 Ford Festiva

1 Answer

A/c stops when I accelerate..


This is normal. It's called a wide open throttle a/c cutout. It gets rid of the power drain from the a/c to allow better acceleration.

Feb 08, 2013 | 1998 Dodge Ram 1500 4WD

1 Answer

Cant get passed by emission test. No codes are coming up but someone keeps saying evap system Catalytic converter, fuel pump, gas cap. O2 sensor has been replaced . Also eating alot of gas. Engine light...


You have to do a drive cycle, the fuel tank has to be between 1/4 and 3/4 of a tank of fuel, can not be above or below this fuel level.
To perform an OBDII Driving cycle do the following:

1. Cold Start
In order to be classified as a cold start the engine coolant temperature must be below 50ºC (122ºF) and within 6ºC (11ºF) of the ambient air temperature at startup. Do not leave the key on prior to the cold start or the heated oxygen sensor diagnostic may not run.

2. Idle
The engine must be run for two and a half minutes with the air conditioner on maximum and rear defroster on. The more electrical load you can apply the better. This will test the O2 heater, Passive Air, Purge "No Flow", Misfire and if closed loop is achieved, Fuel Trim.

3. Accelerate
Turn off the air conditioner and all the other loads and apply half throttle until 88km/hr (55mph) is reached. During this time the Misfire, Fuel Trim, and Purge Flow diagnostics will be performed.

4. Hold Steady Speed
Hold a steady speed of 88km/hr (55mph) for 3 minutes. During this time the O2 response, air Intrusive, EGR, Purge, Misfire, and Fuel Trim diagnostics will be performed.

5. Decelerate
Let off the accelerator pedal. Do not shift, touch the brake or clutch. It is important to let the vehicle coast along gradually slowing down to 32km/hr (20 mph). During this time the EGR, Purge and Fuel Trim diagnostics will be performed.

6. Accelerate
Accelerate at 3/4 throttle until 88-96 km/hr (55-60mph). This will perform the same diagnostics as in step 3.

7. Hold Steady Speed
Hold a steady speed of 88km/hr (55mph) for five minutes. During this time, in addition to the diagnostics performed in step 4, the catalyst monitor diagnostics will be performed. If the catalyst is marginal or the battery has been disconnected, it may take 5 complete driving cycles to determine the state of the catalyst.

8. Decelerate
This will perform the same diagnostics as in step 5. Again, don't press the clutch or brakes or shift gears.

Aug 26, 2011 | 2001 Pontiac Grand Am SE

2 Answers

'97 suburban runs fine until you kick the


Sounds like your catalytic converters may be plugged up. You can do a quick check by loosening the exhaust pipes from the manifolds and see how it performs.

Apr 05, 2010 | 1997 GMC Suburban

2 Answers

Accelerator got stuck while passing a truck.


When you passed the truck... I guess you couldn't tell if the pedal was stuck since you were focused on braking.

When you brake, your brakes will overcome the acceleration of the car causing it to slow down, but like you describe, the second you let go of your brake, your car accelerates again.

It would sound like either the throttle pedal (gas pedal), the throttle line (connects pedal to throttle assembly) or your throttle assembly (on the engine) may be sticking....

Sep 03, 2009 | 2008 Toyota Camry

4 Answers

Hi i have a 1999 vw passat 2.8 v6 and the problem is that my car does not accelerate as normal,it goes up to 1500 rpm and 2000 rpm and it goes up and down,if i step more on gas it passes the 2000rpm but...


p1545 is a throttle control malfuction code

You can try to reset the throttle body by opening the hood and drivers door then turning your key to the accessory position. You will hear the throttle body whir and click. It may take up to two minutes. Afterward, the car will relearn your habit of driving and adjust accordingly.

Jun 25, 2009 | 1999 Volkswagen Passat

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