01268 Mengensteller (oberer Anschlag) Fehler wohl gefunden | Posts 32+

'He should just try it once... we'll see what happens... let's see if he can.'

Hello men

Okay. Error code: 01268 - Quantity adjuster (N146) 35-00 - - (Still exists)

00550 Injection start control, regulation difference (resolved).

Possible causes:
Valve for injection start (N108) defective no
Needle feed mechanism (G80) defective no
Fuel tank emptied no
Fuel supply not OK, no.
Fuel shortage no
Air in the fuel system no
Start of funding not OK. yes

The timing belt has skipped a tooth on the crankshaft. The most ridiculous thing about it is that it was working yesterday, and we even checked the mechanical settings to make sure everything was correct. It was perfect. Then we checked the wiring harness, etc., replaced the NHG (presumably a component), and everything else that could potentially cause a problem with the mass airflow sensor. No one touched the timing belt drive or the pump, nor did anyone move or start the car. When trying to drive it in the evening, there was the knocking sound and the lack of power, which was caused by that single skipped tooth. During the inspection today, we discovered that the tensioner pulley was hot, which is how this could have happened. Should it get that 'warm'? The inspection of the tensioner revealed no play in the bearing or imbalance.


Question: How can the timing belt slip by one tooth while the engine is stationary, during engine start-up? Isn't it actually something that's practically impossible?

'Edit: The idle fuel trim (measurement group 13) shows 2.99mg/stroke for cylinder 1, 2.99mg/stroke for cylinder 2, and 0.00gm/stroke for cylinder 3. When you press the accelerator, the result is that cylinder 3 changes (to approximately 0.5mg/stroke), while cylinders 1 and 2 remain unchanged. Is the problem there? Are the injectors faulty?' What about the crankshaft sensor?

Hello,

It sounds very strange. Make sure to definitely check the crankshaft pulley.

Sincerely,
Christian

@mullemaus

It's quite funny... but I remember this from my old 1Z. There were so many markings on the flywheel... maybe I was mistaken? Of course, incorrect timing can cause power loss and engine knocking. But I wonder why the ignition timing was correct at the beginning. Also, from my experience, my old 1Z wouldn't even start if the timing was off by a single tooth. The reason was the many markings on the flywheel. I just chose the wrong one.

'A hot tensioner pulley? When does that happen? Only at idle speed after 10 minutes? Normally, the tensioner pulley shouldn't get *that* hot!'

there were so many markings on the flywheel....... maybe I was wrong after all?!

Certainly not .

Incorrect ignition timing can cause power loss and engine knocking. I'm just wondering why the ignition timing was correct at the start, though.

Yesterday, when I turned it off, the starting process was incorrect. After starting it, the engine didn't make those knocking noises anymore. Should be approximately 1.9, is approximately 19.3.

Furthermore, I can say from experience that when I had a tooth misalignment, my old 1z model no longer started.

To get the car started, we had to 'convince' it to do so. Almost impossible.

A hot tension roll? When does it occur? Only idle speed after 10 minutes?

Yes. It only takes about 5 minutes of idling for it to get quite hot. You can touch them, but they've already reached their pain threshold.

Normally, the tensioner should not get that hot!

Okay, then the timing belt will probably fail soon.

If you can rule out the KW screw, then the only other possibility is a problem with the translation during the 'heating' process. It could also be due to a faulty tensioner. Is that also from that great AT motor company?

Are the timing settings correct now? How does the boat handle now? What errors are being logged?

If you could rule out the kw screw, then the only remaining possibility is a translation issue during the 'heating' process.

What does that mean?

perhaps it's also due to the defective tensioner. Is that also from that great AT-motor company?

Yes, everything was originally installed. Was ist dieser Motor? / What kind of engine is this?

Are the timing settings correct now?

Yes, absolutely .

How does the Kahn drive now?

How to replace a timing belt.

which errors are logged

Again, just the quantifier .

Interesting, interesting! I think a new ZR set is definitely recommended.
Tell your friend that he should definitely try using a different fuel pump. I think that's the solution to your problem. But be careful with the AFN pump, as it has different injector sizes. In that case, at least 206 injectors would be appropriate. He might then be able to remove his chip tuning... the new, larger injectors will take care of that. I might be able to lend you some 206 injectors.

We have injectors and a pump from an AFN available, or rather, a whole engine. We'll be testing it tomorrow. He hasn't had any tuning done at all during this time. He has an AT engine control unit (unmodified) from a '98 model in it. Will the ECU from the AHU engine be compatible with the AFN fuel pump and injectors?

I might be able to lend you some (206-size nozzles).


Thank you very much .

It should actually fit...

why don't you just build the AFN (Automatic Fault Notification) in from the start? it would save a significant amount of time when debugging!

The car is a wreck (Audi A4 '95 with a '99 engine, approximately 40,000 km) and he doesn't own it. We are only allowed to use the parts for testing purposes. The main reason is that, as long as the engine is still there (he's supposed to just return it ), he won't get any money back. That wouldn't be a good deal.

Just try the pump first!

What kind of damage does the A4 have?

Strong front (right side). Both airbags are located externally. Directly above the air filter, approximately. Extending almost to the turbo. The engine is running (barely).

The most important thing is that the engine still works!

Is there no way to get rid of this obviously shoddy engine? It's and will remain a bottomless pit!

Yes. Therefore, a material defect in the tensioner would be a welcome change.

Okay, go ahead and find some material defects. I bet the pump is a major material defect too.