Fox Head ports

[Canadianfox]

When removing the smog pump and hoses to the back of the heads.Would a leak at the plug used to block off the head cause a code 41 02 sensor issue?

 

[90sickfox]

Those holes should be blocked off. Itll act like an exhaust leak. You need thermactor plugs.

 

[revhead347]

This is a continuing message on this forum. Fix the problems you know you have first. The back of the heads not being plugged is a known problem. Fix that first, and go from there.

Kurt

 

[Noobz347]

Closing this thread.

If you are still having this issue, include that information in the thread that you created here:

C

Electrical Thread 'New fox body owner little worried'

Aug 19, 2019

I hate being a first time poster with a tech issue but I’ve totally run out of ideas and need some help.Ive done a ton of reading and mechanical work based off the forums on this site trying to solve my issues .

I own a 1993 lx 5.0 convertible and am having idling issues ( sounds like its camed but isn’t) and predetonation ,and à first this last weekend the power lose in 5th,4th where my car just lost speed when I was floored on the highway and all I can watch was my speedo drop .No backfiring ,stalling just power loss until I got to a certain rpm .

Here is what I’ve done based off many...

• Canadianfox
• Replies: 30
• Forum: Fox 5.0 Mustang Tech