Engine 89 5.0 Backfiring/Missing Under WOT

Was hoping i could get some input on where to start diagnosing a backfiring/popping/missing thats occurring under WOT in my 89 302. Recently replaced the fuel pump, lines and tank, as well as o2 sensors and idle control valve. The only codes i have are for the EGR valve which is capped because im unsure if its leaking or not and TAD/TAB which are deleted from PO. Any insight would be appreciated. thanks in advance

WTB/Trade 1986 GT map light grey.

Here's a couple of choices for ya...

NOS.... oem quality, oe style light bulb, but is a 35 year old part.


Repop.... DCMR quality, brighter, whiter led bulb, relatively recently manufactured (not a 35 year old part).

Random Mustang II Pictures

I know this is the photo thread but didn't want to start a new one so...
Got is e-mail today, any of you guys going?

Carlisle Ford Nationals​

May 31 - June 2, 2024​

Celebrate 50 Years of Mustang II​

A Showcase of Mustang II's You Won't Want to Miss​

Join us this June as we celebrate this historic generation that started in 1974 and went to 1978, becoming one of the best-selling Mustang generations of all time!
Show More

Facebook Twitter Email Share This

Mustang II Anniversary Parade​

Friday at 2PM​

Are you ready to have TWO much fun? Join us with your Mustang II for a special parade at 2PM on Friday at the Carlisle Ford Nationals. This parade is open TWO all Mustang II’s registered for the showfield and in the display tent. Beginning at 1:30PM the parade group will begin lining up by the Mustang II 50th Anniversary Display tent and classes. Special Guest John Clor of Ford Performance will be the Grand Marshal of this parade. The parade will lap the infield of the event and pass in front of the grandstand for all TWO see. This is really TWO cool of an opportunity to miss out on if you are a Mustang II owner.

Paint and Body Is this seam sealer?

Removed the sound deadner in my interior and I was cleaning the floor and I noticed on the passenger side of my car it appears as the two sheet metal pieces have separated. There is now a hole where I can see through to the outside.

Is this seam sealer running across the seam? Should I hit the metal with a hammer and reseal it with seam sealer?

IMG_9321.jpeg
IMG_9325.jpeg
IMG_9322.jpeg


Here’s the other side for reference
IMG_9327.jpeg
What an awesome community!

Filter