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Excentric saft reset

How do you reset excentric shaft base setting in ecu

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Call Mini Cooper Helpline.

Posted on Mar 29, 2014

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How to set toyota avnza timing


The timing is totally controlled by the ECU. The user cannot change the timing with out changing the firmware of the ECU. Yes, early to mid '90s cars you could set the base timing, but any modern car manufactured after 2000 has no capability for the user to adjust the timing.

Jan 12, 2016 | Toyota Cars & Trucks

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CMP - Cam shaft Position Sensor


<p><b><span>3.2) <span> </span><u>CMP - Cam shaft Position </u>(sensor)<u> </u></span></b><br /> <p><b><u><br /></u></b><br /> <p><b><span>What is it?</span></b><span><span> </span>This electrical device is very similar in concept to the crank position sensor (above) in that it detects the position of the rotation of a shaft, in this instance the cam shaft.<span> </span>It is the cam shaft signal that indicates to the ECU that cylinder one is at top dead centre at compression and in the process provides the ECU with the timing reference for fuel injection.<span> </span>The cam shaft sensor provides extra information, to that of the crank sensor, to fine tune timed events such as injection and spark delivery.</span><br /> <p><span> </span><br /> <p><b><span>Where is it located?</span></b><span> The location of this device depends on the design and age of engine.<span> </span>On many modern overhead cam shaft engines the cam shaft sensor is located either on the end, or to the side of the end, of the cam shaft housing.<span> </span>On older pushrod engines the cam sensor is found where the distributor would once have been located.<span> </span>This type sensor assembly makes use of the distributor shaft meshing directly, at its bottom end, with a gear on the cam within the engine block.<span> </span>In this respect the distributor shaft is just an extension of the cam shaft.<span> </span>On the top end of this distributor shaft is a magnetic armature.<span> </span>The cam shaft sensor, that measures the movement of this armature, is located in the cover and uses either magnetic or 'Hall effect' pickup modules.<span> </span></span><br /> <p><b><span> </span></b><br /> <p><b><span>How does it work?</span></b><span><span> </span>The sensor detects the position of a magnet or set of teeth on the gear on the end of the cam.<span> </span>An electrical waveform output signal is sent to the ECU as the cam turns.<span> </span>The cam sensor tells the ECU that cylinder 1 is at TDC on its compression stroke prior to ignition. <span> </span>The cam sensor ensures the correct timing of the fuel injection cycle.<span> </span>If the timing belt ever jumps a tooth on the cam the lack of agreement between the respective signals from the cam and crank sensors is indicated as an error condition by the ECU. </span><br /> <p><b><u><span><span> </span></span></u></b><br /> <p><b><u><span>Symptoms of faulty cam sensor</span></u></b><br /> <p><b><span>Associated OBD2 error codes DTCs: <span> </span>P0341 - P0349; P1345</span></b><br /> <p><b><span> </span></b><br /> <ul> <li><b><span>Hesitant acceleration - </span></b><span>miss-timing of fuel injection due to a faulty CMP can cause intermittent loss of power.<b></b></span></li> <li><b><span>Starting difficulty/failure.<span> </span></span></b><span>If the faulty CMP timing problems are severe they may cause the engine not fire at all, or to fire and then stall, or stall at some random time without warning.<b></b></span></li> <li><b><span>Hot engine stall and failure to restart - </span></b><span>Sometimes the fault of the CSS only manifests itself when the engine is hot.<span> </span>Over time thermal stress can cause cracking and can weaken electrical junctions within the CMP.<span> </span>The CMP may work well at cold start up but can then cause a hot running engine to stop with little chance of restart whilst the engine is still hot;<span> </span>once cooled the down the engine may readily restart and again run for a limited period until hot.</span></li></ul> <p><b><u><span>Note </span></u></b><span>The cam sensor body often protrudes into the cam shaft gallery and when it's 'o' ring seal<span> </span>becomes age hardened, engine oil may leak back into the sensor electrical socket plug connector causing errors due to interruption of signal. </span><br /> <p><b><span> </span></b><br /> <p><b><span>How to check? </span></b><span>It is not technically<b> </b>easy<b> </b>to determine that the CMP is at fault and, like the crank sensor, may require the use of an oscilloscope.<span> </span>If it is part of a sophisticated on board diagnostics system its failure may be logged as a specific error code in the ECU. Due to the variability problems with engine running are often experienced well before any error codes are set by the ECU.</span><br /> <p><span> </span><br /> <p><span><span> </span>2 pin socket (magnetic - sine wave output).<span> </span>One pin is 'ground' the other is 'signal'.<span> </span>A voltmeter set to 2 volts AC should measure a signal in the 0.2 to 2 volts range on the 'signal' pin.</span><br /> <p><span><span> </span>3 pin socket (Hall effect, magneto - square wave form output).<span> </span>One pin is 'reference' (5volts), one pin is 'ground' and the third pin is 'signal'.<span> </span>A DC voltage should be detectable in the 0.5 to 1.5 volt range from the 'signal' pin.</span><br /> <p><span>It is important that the voltage measurement take place at start up when the engine is cold and again, 20 minutes later, when the engine has fully warmed up to operating temperature. Often the voltage output from faulty sensors declines with temperature rise.</span><br /> <p><span> </span><br /> <p><b><span>How to fix?<span> </span></span></b><span>If the CMP failure is due oil leakage into the electrical connector then a thorough clean and a renewal of the oil seal on the CMP may correct the situation.<span> </span>It can be a wise precaution to change the connecting cable as oil migration beneath the insulation may possibly contaminate components at some distance to the CMP.<span> </span></span><br /> <p><span>If the CMP has an internal fault then it must be replaced.</span><br />

on Jul 22, 2011 | Mercedes-Benz E-Class Cars & Trucks

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Replaced battery, but vehicle still won't start. Is there a reset code?


You can reset the ECU but I don't think resetting anything will solve.

There's numerous things that can make a car not start. You don't even mention whether it cranks or not. If it cranks but doesn't start then could be shaft sensor is bad, ECU is bad, no power or not grounded, or the main relay also known as ASD and MFI is blown and won't send power to the ignition and pump.

Aug 25, 2010 | 2000 Mitsubishi Montero Sport

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Failed emission test, codes p1698, p1776, p0700. It is a 1999 Plymouth Grand Voyager, 3 liter


Strange that it failed the emission test. The codes given relate to the transmission computer not outputting the correct signals to the engine (power) control module ECU. Have you noticed any abrupt gear shifts lately? I wonder if the emission test failure is related. Sometimes the gear selection failure can be as result of the ECU getting the incorrect information from a faulty throttle position sensor TPS. The ECU relays the information to the transmission controller and this snatches at the gear shift at slightly the wrong time. A faulty TPS might also be responsible for the ECU setting the wrong fuel air mixture and this would result in inappropriate exhaust gas emission. The TPS is on the throttle plate shaft and is located on the outside of the throttle body. The two outer pins on the TPS plug have 0 volts and 5 volts. The middle pin sends the voltage to the ECU according to the throttle shaft position between 0 to 5 volts. Check out the TPS thoroughly before looking for something more complicated. Then next I would pull the sockets from the respective control units and make sure all the contact pins are clean and bright to ensure good inter connection

Aug 24, 2010 | Plymouth Grand Voyager Cars & Trucks

1 Answer

What sensor is controlled by the accelerator pedal? What sensor controls spark timing? Both on a 1997 v6 Rodeo.


Hello Wayne.
When you depress your accelerator pedal it increases the voltage output of the throttle position sensor mounted on the end of the throttle shaft.
No one sensor adjusts timing though. The inputs from several sensors are integrated inside the ECU computer. Then the ECU adjusts the timing accordingly.
Base timing is taken from the crankshaft position sensor and the camshaft position sensor.
Engine temperature, engine load, revs per minute, gear ratio, speed all have the most effect, but there are others that will have slight effect as well.
If you have any more questions leave them in "add comments" and I will return your question.

KL

Dec 17, 2009 | 1997 Isuzu Rodeo

1 Answer

How easy is it to change water pump gasket on 91


There are two pulleys running in this engine, and the waterpump runs on the second pully behind a case. so you have to take almost everything off to get at it. Then, the waterpump is actually the belt tensioner for that pulley system. it is excentric (sp?) so when you turn it in place, it tightens the belt. then you secure it back with three bolts. The belt system in question connects the drive shaft with the cam shaft, So you do have to be Very Careful with the belt/ pulley alignment. i marked the pulleys very very carefully so i could get everything lined up again.

Oct 16, 2009 | 1991 Pontiac Sunbird

1 Answer

How do you reset the computer on a 09 mazda bt50


Today's ECU's have some pretty awesome abilities.

Many years ago before computers controlled cars, you had literally heaps and heaps of adjustable areas under the engine to get the engine tuned and running sweet, set the fuel mixtures, timing, clearnes for BTDC, etc.

These days the engine has sensors all through the engine to see what is happening and report back to the computer, and based on this information the computer responds with instructions to control the engine and keep it running how it 'believes' it should run based on the information received from the calibrated snesors located in the system.

There are several key-sensors in the system that the ECU learns from, including crank angle sensor, o2 sensor, and knock sensor.

After a while, the calibration of the sensors becomes scewed slightly from wear, from pollution and dirt, etc.

Performing an ECU reset usually means that the computer goes back to factory rom settings, which are fail-safe levels, and then it quickly learns from the readings it gets back, comparisons to what it thinks it should see and what it really is seeing, then it adjusts and re-compares again.

On most cars and ECU reset will se increased fuel consumption for the first 15 - 30km's, but then levels back to normal, and on some cars you can get better consumption after the level off period.

After my speal above... take the negative lead off the battrey for 30mins

Oct 01, 2009 | 2008 Mazda B Series Pickup

1 Answer

My 2000 v6 chevy camaro came up with a code p1514 which i think means something about the tps sensor, im not fosure can some 1 assits me futher with this problem. and where is this located on the car..and...


DTC P1514 Definition: Airflow to TP Sensor Correlation High

When you step on the gas, and the TP opens up, it is set to match the speed of the engine, based on the ECU settings. P1514 means you intake is pulling in too much air for the amount it should be getting at that current engine speed. So basically your getting more air than fuel, because the ECU is adjusting you throttle wrong, you need to lower your air flow. This could be caused by a problem with the ECU, try having the ECU reset, and that may fix your problem. I would not suggest manually restricting the air flow by blocking or pinching the intake tubes or blocking the air filter, this will cause further problems, and would be a temporary and unnecessary fix. If this doesn't fix your problem, than the throttle plate could be out of adjustment by mechanical error, in this cases manually inspect the throttle body.

Sep 27, 2009 | 2000 Chevrolet Camaro

1 Answer

I am trying to find a diagram for belt for a 1995 Ford Windstar


i dont have a diagram but know how it goes on. from the passenger side of the van starting at the crank shaft. it goes from the crank shaft to the ac pump straight up to the power steering pump down to the ideler pully then back up to altinator then down aroun the water pump then over to the tensioner and back down to the crank saft

Mar 30, 2009 | 1995 Ford Windstar

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