My m50 is pinging. Running out of ideas.

[e30austin]

I would just do them all, just so you know. My old m50 ran like shit and got terrible mileage, so I replaced the blue coolant temp sensor and it woke it right up and got my mileage back.

[Wishno87]

Awesome. Thanks for the advice!

My plugs 1-6 from right to left

[e30austin]

Go get the NGK plugs. That was the other half of my issue. Never ran right with the Bosch plugs.

[justin_l_]

Ngk ftw

[Matt-B]

Those are oem. Im running them with no issues.

Josh if you to barrow parts lmk

[Wishno87]

Ryan you figure anything out on your end?

[Ryann]

Updates?

[Ryann]

I've tried unplugging coolant and intake air sensors, no change.

[Wishno87]

I got my fuel pressure tester yesterday. Trying that today or tomorrow. I put some "upper cylinder cleaner" in my tank and running that through. It specifically mentions it is supposed to clean piston tops. If fuel pressure checks out I will probably be doing seafoam next after I peek in the bores with an inspection camera.

[Dj Buttchug]

just did new O2 sensor. Problem solved on mine...

[Ryann]

Hmm, makes sense so far as only pinging when warm (closed loop).

[Wishno87]

just did new O2 sensor. Problem solved on mine...

I guess that's next on the list for me lol.

[Dj Buttchug]

Hmm, makes sense so far as only pinging when warm (closed loop).

this x345422

go to a parts house. Buy A 1995 ford mustang 4 wire O2 pre cat sensor.

38 bucks.


done

[Wishno87]

Just ordered one. Should have it this afternoon. Will update with results.

[Wishno87]

Well no dice on my end. It might be slightly better with the new sensor MAYBE. Or that could just be placebo. Fuel pressure and seafoam next.