Posted 2 Jun 2010 · Report post Codul asta il primesc si eu. Asta am gasit pe net:"Diagnostic trouble code (DTC) ECM-644A is stored in the engine control module (ECM) if the camshaft is not in the correct position. The engine control module (ECM) registers this as a fault as soon as the engine is started.The engine control module (ECM) registers a fault and diagnostic trouble code (DTC) ECM-644A is stored in the engine control module (ECM) if the camshaft position (CMP) sensor flanker is not correct in relation to the engine speed (RPM) sensor.The engine control module (ECM) registers a fault and diagnostic trouble code (DTC) ECM-644A is stored in the engine control module (ECM) if the camshaft does not rotate quickly enough in response to the control signalSubstitute value-the variable camshaft is disabledPossible sourceFaulty position-camshaft belt has jumped out of place on the cogs-defective reset valve-mechanical fault in the Variable valve timing (VVT) unitFaulty control-defective camshaft position (CMP) sensorControl too slow-low oil pressure-poor oil quality-defective reset valve-mechanical fault in the Variable valve timing (VVT) unitFault symptom-poor performance"Mi-ar placea sa se rezolve si pb performantei inlocuind senzorul Din cate inteleg ar putea fi reset valve sau VVT Nu v-ati lovit nicodata de codul asta de eroare?Si ce ma intereseaza cel mai tare: ce pot strica mai rau mergand asa? In plus, exact intr-o luna voi pleca in Grecia, e cazul s-o repar inainte sau singurul impediment ar fi ca nu mai e f vioaie? Share this post Link to post Share on other sites
Posted 2 Jun 2010 · Report post Si am gasit si cum se testeaza:"Checking the fault type:-Check camshaft position (CMP) sensor connector for contact resistance and oxidation-Read out the adapted values for the camshaft. There are 4 values, one for each flank.If one of the adaptation values is 20 degrees, the camshaft reset valve has stuck. Replace the camshaft reset valve.If one of the adaptation values is less than 9 degrees, the camshaft reset valve is defective. Replace the camshaft reset valve.If any of the adaptation values are between 10 and 19 degrees, the variable camshaft must be adjusted in relation to the crankshaft. Adjust the camshaft.Remedy as necessary.-Check reset valve camshaft resistance between both terminals #1 and #2, resistance should be approximately 3.7 ohm.-Check the oil level and oil quality.Check that the variable valve timing (VVT) unit and reset valve function mechanically.Remedy as necessary.=Verification:Hint: After carrying out the repair, check that the fault has been remedied.-Ignition off-Reinstall the connectors, components etc.-Ignition on-Start the engine.Check the camshaft adaptation by reading off the adaptation values of the camshaft (flanks 1-4). All values must be between -7° and +7°.Turbocharged engines: When checking, the accelerator pedal (AP) must be depressed slightly but the engine speed must be below 1200 rpm.Care sunteti dispusi sa m-ajutati cu verificarile astea? Share this post Link to post Share on other sites
Posted 2 Jun 2010 · Report post In concluzie, trebuie un tester serios si un mecanic care stie ce face, in afara de chestia cu masuratul rezistentei la valva de reset. Share this post Link to post Share on other sites
Posted 2 Jun 2010 · Report post In concluzie cred ca Betty o sa mearga in Grecia cu metroul Share this post Link to post Share on other sites
Posted 2 Jun 2010 · Report post Eu cred ca tre sa mearga la Primus pentru o diagnoza profesionala,cel mai bine,nu se stie ce se poate intampla la drum lung. Share this post Link to post Share on other sites
Posted 2 Jun 2010 · Report post Asa e mai tizule, cand ai dreptate ai dreptate Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post @DETONATOR Tu nu faci diagnoza profesionala? Pe la Primus mi-e cam frica sa trec Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post va rog sa puneti o poza cu amplasarea acestui senzor pt ca am gasit pe forum pe cineva care dezmembreaza o masina cu motor ca al meu dar nu stie cum arata si unde se afla acest senzor. Eu nici atat nu ma pricep Dupa ce fac rost de el, as putea sa-l inlocuiesc singura? Sau trebuie umblat si prin soft?Chiar se poate strica mai rau de la senzorul asta? ma cam speriati cu mersul in grecia cu metroul Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post Se afla pe galeria de evacuare in fata catalizatorului, deci undeva in spatele motorului. Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post Merci, dar daca poti sa pui o poza Mi-e clar care-i motorul, in rest....Ca-n reclama cu filtrul de polen. Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post Si sunt 2 senzori de O2 nu doar unul, asta ca sa fie treaba mai interesanta .[attachthumb=#] Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post Eu vb de camshaft senzor acum am impresia ca e undeva in dreapta motorului, cum te uiti la masina.Din cate am inteles o2 senzor da eroare specifica, nu mai cred ca e defect Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post Este in dreapta pe chiulasa, oricum nu stiu daca ai acces la el, trebuie sa verifici in VADIS . Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post Pai daca n-am acces la el cum se inlocuieste? Sau n-am acces pt ca-mi lipseste vreo unealta speciala? Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post Din ce am citit prin linkul ala, eroarea aia poate aparea de la mai multe componente ale distributiei, nu numai de la senzorul de pozitie al arborelui cu came (care e doar o bobina cu un magnet din cate stiu eu, deci n-ar avea ce sa se strice). Pentru cineva care stie ce face e destul de simplu de remediat dupa indicatiile din vadis, dar daca te duci cu ea la vreun gigel care crede ca-i ca la logan dci, garantat mai mult o sa strice. Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post In niciun caz n-o sa merg pe la vreun gigel. Am inteles si eu din link ca ar putea fi camshaft position sensor, reset valse sau vvt.In cazul in care vvt e o valva aflata in stanga motorului, p-aia am schimbat-o deja. Teoretic raman doua posibilitati.Din cate am mai citit pe net codul 644A poate avea mai multe mesaje. Adica exista mesajul meu legat de camshaft position si am mai gasit si legat de reset valve, dar repet acelasi cod. daca gasesc senzorul de camshaft ieftin il schimb si gata. Cred c-o sa merg tot la mecanicul la care merg de obicei, mi-a dat si vvt-ul meu vechi inapoi, in caz ca nu-i de la el. Numai ca mecanicul sta departe de mine si daca e vb doar de scos o mufa si desfacut ceva suruburi n-as mai face drumul ala+ invoire de la munca etc Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post Nu e neaparat senzorul defect, poate fii o problema la VVT, distributia obosita, pana si uleiul conteaza la VVT . Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post In caz ca vrei sa aprofundezi tema. Parerea mea e ca daca ar fi bulit senzorul http://69.0.158.19/live/W01331600318OES.JPG, masina n-ar prea avea cum sa mearga deloc. Nici reglaj nu are. Si vestea proasta e ca s-ar putea sa fie doi senzori. Pozitiile aproximative aici. Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post Mai degraba Camshaft reset valve, oricum e de sapat . Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post @DETONATOR Tu nu faci diagnoza profesionala? Pe la Primus mi-e cam frica sa trec Fac diagnoaza cu acelasi soft si interfata ca la Primus.Pot face ce fac cei de la Primus mai putin nu pot descarca softuri.Am mai vb cu tine despre asta,ai numarul meu pe PM dar din pacate nu te pot ajuta. Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post @DETONATOR Nu poti deloc sau esti ocupat in perioada asta? Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post @xydexterMultumesc mult pt link-uri, foarte utile. Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post Am recunoscut piesa in poza, reset valve a fost schimbata deja. Am eliminat-o Ce e vvt-ul? Share this post Link to post Share on other sites
Posted 3 Jun 2010 · Report post Variable valve timing, e o tehnologie care variaza momentul deschiderii supapelor de admisie si evacuare astfel incat sa micsoreze noxele, consumul, etc. Asta in teorie. In practica e o alta chestie care se poate deregla/defecta. De obicei, e actionata hidraulic de uleiul din motor, cu niste pistonase si e controlata printre altele si de valva aia de reset. Share this post Link to post Share on other sites
Posted 17 Jun 2010 · Report post Am schimbat senzorul de la axul cu came si se pare ca problema s-a rezolvat (am mers deja vreo 30 de km si nu s-a reaprins check engine-ul). Nelamurirea mea este de ce nu se stinge check engine-ul automat la pornirea motorului dupa inlocuirea piesei ci trebuie stearsa eroarea? Nu-si face o verificare oricum la pornirea motorului? nu se prinde singura ca problema a disparut? Share this post Link to post Share on other sites