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1997 BMW 740i: When I first start it up it will run fine until I depress half or more throtle then the CEL light would blink. After that it runs with no power and struggles to even maintain 35 mph speed. Wouldn't accelerate easily past 3000rpm. When I come to a stop light I would feel the engine missing on multiple cylenders and whole car shakes. If I turn the ignition off, disconnect, and reconect the MAF, then start, the missfiring goes away and it idles fine and drives fine if I keep it pampered. No top end. No power.

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  • Cars & Trucks Master
  • 12,104 Answers

Have vehicle scanned most auto stores offer this service for free the code will assist in repairing your problem

Posted on May 09, 2017

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
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click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 625 Answers

SOURCE: 91 nissan Sentra losses power at highway speeds

remove the front 02sensor and drive the car like that, remove means complety take it apart from exaust, if problem goes away or gets so much better then your catalitic converter at the exaust is restricted and need a new one

Posted on Jun 19, 2008

  • 20 Answers

SOURCE: 91 volvo 240 - keeps stalling out, shakes a lot when idling

for the cheapest TEMPORARY solution get some fuel injector cleaner and get on the gas fo about 5 mile at like 100 - 120 miles an hour thats what idid to mine last week hasnt wanted to die out since. good luck.

Posted on Oct 21, 2008

  • 2 Answers

SOURCE: 2003 Crown Vic Misfiring after acceleration

I just came up with that exact issue in my 2003 with 98K police crown vic. And the last time I had this issue in a 2001 police Crown vic it was the crank shaft position sensor. A $20 part and about 30 mins to put it in. located near the bottom of the engine. I had to un bolt the A/C compressor and push it out of the way a few inches to get to the sensor. If you have about 100K mile on it and its an idled heavy police car, this sensor should be changed out anyway. It can leave you on the road dead and some dealers have a hard time find out whats wrong as the OBD 2 does not see it as a problem when it goes bad or becomes touchy as I think mine is.

Posted on Jan 12, 2009

  • 636 Answers

SOURCE: 2001 BMW 325i problem: Car runs very rough, but no warning lights

Sounds like a fuel problem , have you changed the fuel filter in a while ? could be the knock sensor or the knock sensor module needs to be replaced.

Posted on Jul 28, 2009

motor1258
  • 6674 Answers

SOURCE: 2004 subaru forester, 99,000 miles. Check engine

Drop in to an Autozone, or Pep Boys, or similar big parts store & they will usually scan for codes free. This will hopefully eliminate all the guess work, or at least point everyone in right direction for better diagnosis. If not obvious from codes what the problem is, get back to us and we'll help you out.

Posted on Aug 23, 2009

Testimonial: "Thanks for the great suggestion . I'll have Autozone read the codes on Monday. Thanks again!"

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1 Answer

1997 bmw 740i brake lights don't work


Shawnna: I like to start simple so I would pull the lens of the tail light and check and probably replace the light bulbs. Naturally, it could be a short or a fuse problem, but that is the most logical place to start.

May 28, 2015 | 1997 BMW 740il

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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

Brake pedal on my 1994 BMW 740i does not want to return all what way when the car is running. it appears that it seems to return when the car is not running. we have already changed out the brake booster...


brakes locking on is an indication of a failing master cylinder and not allowing the brake fluid back to the reservoir
At this point I would suggest a visit to an accredited professional brake shop for a proper diagnosis and an explanation of what would cause the fault
I am thinking that the rubbers in the master are enlarged and are jamming the return of the pistons in the cylinder

Mar 13, 2017 | 1994 BMW 7 Series

1 Answer

My 1994 BMW 740i only cranks and never runs.


Have you run the fault codes first as it may not be the fuel pump. Find out what is faulty before you spend good money on what is not faulty.

May 05, 2013 | 1994 BMW 7 Series

1 Answer

Why doesn't the drivers side door of bmw 740i 1997


The linkage inside the door for the handle either broke or sliped off,you have to take the door panel off to see it and fix it.

Apr 29, 2012 | 1998 BMW 740i L

1 Answer

A/c fan blower 1997 BMW 740i Not turning on


clogged, fuse, resistor, bad fan,relay, in that order

Jul 15, 2010 | 1997 BMW 7 Series

1 Answer

Both of the brake lights on my 97 bmw 740i don't work


are the dash lights still working,if so,first check the bulbs,you can get a test light at autozone for a couple bucks,with the bulb out,test light grounded,have someone step on the brake pedal,touch the test lite probe to one of the contacts inside bulb socket,if it dont work your brake lite switch is out,its located under the dash,maybe on brake pedal lever

Jan 25, 2010 | 1997 BMW 7 Series

1 Answer

2004 ford f350diesle hard starting depress throtle nothing there


Dear dsmalley427,
I think it sounds like a fuel injection problem. You get fuel for a while until the injector backs up and then all of a sudden NO FUEL. The engine quits and the pressure drops and flow returns enough for you to restart. If I were you I would get to a good mechanic and check the fuel injectors.
OR--try adding a fuel additive that would clean the injectors.--Signed jwr

May 10, 2009 | 2004 Ford F350

2 Answers

Reset check engine light


First of all, you should'nt do this unless you know what the problem is.. or what tripped it. I had this problem when my husband and I were replacing a head unit and disconnected the old head unit, a/c and other stuff then turn the car on. This made the light flash. The first time we took it in and got charged $50 to reset it. The second time we did this procedure and it worked.

ECU Resetting Procedures

Timing is extremely critical. If it is NOT DONE within the specify time, the ECU will not reset and the Check Engine Light (CEL) will continue to remain ON.
A stop watch or an analog clock with a second’s needle will be useful.

Reset Check Engine Light Procedures

1. Confirm that accelerator pedal is fully released, turn ignition switch “ON” and wait 3 seconds.
2. Repeat the following steps (2a and 2b) procedures quickly five times within 5 seconds.
2a. Fully depress the accelerator pedal (HARD).
2b. Fully release the accelerator pedal.
3. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 10 seconds until the CEL starts blinking.
4. Fully release the accelerator pedal (while the CEL is still blinking)
5. Wait about 10 seconds.
6. Fully depress the accelerator pedal and keep it for more than 10 seconds.
7. Fully release the accelerator pedal (The CEL light will continue to blink).
8. Turn ignition switch to “OFF” position and now you can start the car. The CEL light should be gone.

If the CEL light continues to remain ON, repeat the above steps. Timing is EXTREMELY critical to resetting the ECU.

-Christine

May 15, 2008 | 2007 Nissan Murano SE

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