94 4.0 irritation
#1
08-22-2019
Join Date: Aug 2019
Location: Burns
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
94 4.0 irritation
SO. I love this little truck.
But that being said. I'm about to drive it off a cliff.
Rough idle.
New parts.
MAF, IAC, TPS, plugs, wires, coil pack, both o2 sensors, fuel filter, FPR, no vac leaks.
Cat is out. with a big hole in the bottom. (Will replace shortly)
Fuel pressure is at 35 psi, key on engine off.
28 engine running.
Problem is.
With MAF plugged in idles smooth. But down the road, seems like its starved for fuel, bogs down and wont hardly hit 15 mph. NO CEL when plugged in
With MAF unplugged, idles a little rough, but will run down the road just fine. But CEL comes on.
This is the 3rd MAF in this truck and they've all done the same thing.
This is a no EGR 4.0
What am I missing?
But that being said. I'm about to drive it off a cliff.
Rough idle.
New parts.
MAF, IAC, TPS, plugs, wires, coil pack, both o2 sensors, fuel filter, FPR, no vac leaks.
Cat is out. with a big hole in the bottom. (Will replace shortly)
Fuel pressure is at 35 psi, key on engine off.
28 engine running.
Problem is.
With MAF plugged in idles smooth. But down the road, seems like its starved for fuel, bogs down and wont hardly hit 15 mph. NO CEL when plugged in
With MAF unplugged, idles a little rough, but will run down the road just fine. But CEL comes on.
This is the 3rd MAF in this truck and they've all done the same thing.
This is a no EGR 4.0
What am I missing?
Thread
Thread Starter
Forum
Replies
Last Post
M90
2.9L & 3.0L V6 Tech
0
10-09-2017 03:12 PM
TheBearJeweler
Meets, Greets, & Events
3075
06-09-2010 10:41 AM
