Hello all. Good day. I have a problem locating the fault in the Passat b5 1.9 BLS. The problem concerns the camshaft sensor g40 sensor error. The customer came to me after exchanging a set. clutch and after a week said that the car started to burn heavily. Actually, you have to shoot about 3s. There is a constant error 00833 G40 impulsable signal (writes from memory). So I changed the sensor g40 and nothing, I replaced the sealer with a pulse ring behind the two-legged and nothing, raised starting doses on the map (KESS, WINOLS) and nothing. From the observation I can see that the VCDS in the engine in group 4 and in the 4th window shows 0.0, regardless of how I change the timing wheel. The client tells me that the problem was observed when he tried to fire once and when he was filming he heard a strong thunder, a thump and apparently from then on he smokes heavily. I attach still a photo from the oscilloscope of both shaft and shaft sensors and please confirm whether you can not see the synchronization and answer the question if it is possible that the pulley on the timing side is moved (no wedge) can cause such an error. I will add that the timing setting has been checked and is ok.
oh ... b5 did not have a BLS, so I'm probably talking about B6 if b6 check the timing, synchro will not set as if it does not see the position of the shaft or shaft. In the passages b6 and probably all the vagas from these years, the peszel ate a bunch of cables that goes by the starter ... pull it out and see if it is not eaten Of course, the timing checked whether it is in its place yes?
Hello, I have a similar problem. What should voltage be on the pins? For me error 19464 camshaft sensor circuit, value out of limits, new sensor (replacement). The car is burning in a check. Sometimes, if it lights only on 3 gars. Is it also possible in this case that the crankshaft position sensor is dead? whether the indication of the computer is unambiguous.
Hello in my case, unfortunately, I did not find the reason because the customer recently sold the car (he even got used to the fact that it harder smokes) to sum up, I replaced the shaft and shaft sensors (the one on the back with sealant ... everything for locks), the bundles from these sensors, the controller (synchronization of the old one and the update in order that it was not there), the battery and finally the starter ... injections on the table needle I regret the fact because I like hopeless cases but I would have to buy it from the client to continue topic I think it is worth leaving open for a collection of useful information
Hello. In this case, gentlemen, plug in the oscilloscope and check the actual mileage from the shaft and camshaft sensor, compare it with the waveform library, e.g. (...) I will not mention the name of the company for obvious reasons, do not follow VCDS. These problems appear, for example, after replacing the timing, a badly seated sensor.
I do not know why it shows that, I know that changing the dose by the tuner will help, vcds can only be changed slightly. You have something to read and write the driver, you can contact us, we will advise you.
I have the same problem but in the B6 2.0 TDI BKP passat
VcDS The problem is that in the engine 01, group 051 shows in position 2 the value of the camshaft sensor (g40) and they are the same as the shaft (g28), the car fires hard on warm.
Sensor replaced, beam checked with a multimeter for a break from the sensor to the controller - everything ok.
Have any ideas ???
Sync angle to 0.
hello ... I think the problem is stereotypical and it's called hotStart and it's not about the size of the doses but the threshold (turnover) of their occurrence, you have to read the flash, not the eeprom. For example, Mpps is diabolically without a problem, but it seems to me that the last update will also solve the problem, because apparently Volkswagen made a patch for it ... apparently greetings
Maybe you are right, but explain to me what the starting dose for a strange start on warm, when cold is great. Besides, why are the values of the camshaft position sensor wrong?
I would like to very much scan the same engine with passat b6. The indications show as I thought so changing a hotstart dose is unnecessary and not needed because this is not the problem. I will replace the sensor with another one
Changing the dose is not a solution to the problem but a workaround. The cause of the problem is unknown.
Hello yes, it is impossible to disagree, but to paraphrase a classic of recent times is an alternative fact By studying the moza temperature map you will find out that fuel injection starts from 200 rpm at 20 degrees C, but at 70 from 250 rpm up to 20 degrees injection in full range and the magic of hotstart is that the engine (read starter) due to its condition is not able to reach 250 rpm after reaching 70 and more This may serve as a clue when looking for an answer to the bug greetings