96 random miss with fuel knock

Partsman

New member
Joined
Jan 5, 2018
Messages
5
Reaction score
0
Hello all
I'm new here, was a member of another site that got way too commercial a few year back.
I saw Dave(golfer) here and joined.

Working on a friends 96 that has a weird random miss, most pronounced form 2k to 2200 but I feel it at all rpm's.

What I have done so far: CPS and connector(that got it to run)
Tighten loose IPR nut and Replaced fuel soaked connector.
Swapped IDM and ICP with mine.
Unplugged outer VC connectors 1 at a time and miss is still there.
Changed fuel pump that was starting to leak and all new hoses.
Cleaned fuel filter housing that had 1/2 inch of rust in bottom, FPR screen and new filter.

No codes show up with Superchips programmer and program set to stock.
I have a HP oil gauge tee'ed in right side and it looks like the pressure jumps UP when it misses.
It does it in park or driving. I don't have a way to watch real time data at the moment.
 

Partsman

New member
Joined
Jan 5, 2018
Messages
5
Reaction score
0
I got to get back on this thing. Still have not run any live data but I was thinking yesterday. Has anyone heard of a 7.3 breaking a valve spring? I'm thinking what I thought was a fuel knock is a valve slamming home. That would explain when I unhook the harnesses it still misses.
 

Partsman

New member
Joined
Jan 5, 2018
Messages
5
Reaction score
0
CPS CPS CPS CPS
Damn BWD cps was doing the same thing as the old one.
Ford CPS fixed it.
 

Partsman

New member
Joined
Jan 5, 2018
Messages
5
Reaction score
0
Yeah, in the back of my mind I kept thinking the only times I have seen one run goofy it's been the CPS
 

Latest posts

Members online

Top