Reason650

Hi all! I have 2011 B8. A few days ago I filled up my tank and as I was leaving the gas station the car started shaking alot and felt like it wanted to stall. I pulled into a spot, turned off the car, and tried to restart. It only cranked but did not start. It gave P0016 and misfire codes on all 4 banks. Got it towed to a local mechanic and they confirmed that the timing chain has jumped. Got it towed home. I changed the timing chain and put in a new version tensioner. Tried to start it up and still just cranking and no start. Any help would be great!

jagtoes

Do a compression check to see if you did have a chain problem. If 0 compression you bent the valves . Any codes?

Reason650

Thanks jagtoes for the quick response. When the car was at the mechanic they claimed they did a compression test and a free leak down test and both were satisfactory. I forgot to mention that I no longer hear the fuel pump priming when I open the door or put in the key. This noise was very distinctive before and I dont hear it anymore since the original stall. Could this be the issue? How can I test the pump?

Reason650

I didn't check the codes last night it was getting late. I will check it this morning. I have an obd11 scanner. I will keep you posted.

Reason650

The only code that is present is p0016. I just replaced both cam and crankshaft sensors about 2 months ago. Would they have failed so soon?

Reason650

I replaced the the camshaft and crankshaft sensors and put in new spark plugs. The car still will not start. It cranks but will not start. I have spark, air, compression, and fuel. What could be wrong? Please help!!

SMac770

P0016 is not a sensor failed so much as the correlation of the crank and cam. If you've done the chain job and still have a P0016, then I would imagine you're not done with the chain job. The car is not satisfied with the results.
If you don't hear the pump priming, check the fuses. Additionally, www.youtube.com/watch?v=Ll0GTBzv0dI

Reason650

Thanks for the response. I am no longer getting any codes. The p0016 code went away right after I changed the two sensors. I watched the video. I know the car recognizes the door. Interior lights come on and it shows the door open on the display by the gauges. The fuel pump used to have a very distinct winding noise when I opened the door. But I haven't heard that noise in awhile. I changed the spark plugs yesterday and the old ones were wet with gas. So I know fuel is getting to the engine. Another thing that is happening, is when I push in the key to power the car but not start it there is a loud click. Then I push the key and the brake to start and it just cranks but no start. Could it be the fuse near the positive battery terminal in the trunk? I heard they can be a culprit also. Sorry for the long post just trying to give as much info as possible. Any other suggestions out there?

SMac770

If there's no codes and you have the four ingredients, I am not sure.

Hirnbeiss

Do your own compression check. I am skeptical of their claim to have checked compression with a jumped chain. Also, did you see that the chain had jumped? How many teeth was it off?