My m50 is pinging. Running out of ideas.

[Matt-B]

So if anyone wants more, your saying hanz and franz will have to strike a few more, from the fire filled forges of the german mountains, where they harvest precious metals to use only on bmw parts??

[Wishno87]

Just installed this.

[THEhomelessONE]

Did it fix the pinging?

[Wishno87]

Appears to be no change.

[e30austin]

I knew it wouldn't.

How did the rest of your sensors check out?

[justin_l_]

My podi is setup for it but I haven't bought the wideband yet because I can't get any of the rest of the gauge working.

I got the one I have all set up if you think I can help send me a pm.

[Matt-B]

I knew it wouldn't.

How did the rest of your sensors check out?

Should have said something...

[e30austin]

It would have needed replacing eventually. Did you ever check out your knock sensors? How about cam sensor?

[Wishno87]

Knock sensors are new. Haven't touched the cam sensor. Will do the coolent temp sensor next time I pull the intake. At this point I'm betting on the vanos. Replacing it next weekend along with some s50 cams and squid tune.

[e30austin]

I would check resistance on the cam sensor, just to be safe. Good luck! You'll want to drive it a lot more after you do cams and a tune.

[butters]

Damn, this sounds frustrating. I'm in just to see what happens, hope you can sort it out.

Seafoam didn't do anything for me either; I had my motor rebuilt afterwards and the pistons and valves were still horrifyingly caked with deposits, though to be fair it was burning significant oil. Also I didn't experience any pinging despite a that and a bad HG / poor compression.

I would check resistance on the cam sensor, just to be safe.

I would check resistance on all the things just to be safe. Seems like it could be one of those terrible electrical gremlins we all dread.

You mentioned it was different/worse on a different ECU - does it change much when you unplug the battery for awhile then try again? I wonder what the adaptations are doing, maybe that holds a clue.

[Wishno87]

I ordered a new cam sensor to install while I'm replacing the vanos unit because you need to remove the vanos solenoid anyway. I couldn't find any ohm specs for the cam sensor though. Just the crank sensor.

[Wishno87]

Well it appears the rebuilt vanos and new cam sensor did nothing. I will still install the rebuilt vanos on the e34 though just because it probably could use it so I will report back with that.

Also yesterday I installed a new ecu coolent temp sensor and new oil cap as well as swapped coil packs. Still nothing.

Today I will swap injectors and fpr.

[Matt-B]

damn... :(


I hope, you can track this down, is it possible, you have bad lifters, or a related head issue?

[Dj Buttchug]

my shit pings still too. Im over trying to fix it. Im gonna mash it till it blows up.






Whatever.