91 pickup
96 3.4 auto harness
98 auto ecu
R150
ORS harness to make “˟˟˟˟”
“Work right”
4:10
305/70r16 A/T. (32.7”)

Only CEL’s are
Shift solenoid (x2)
Tranny temp sensor
Evap purg ( took whole ˟˟˟kin thing out)
The 3 evap sensors are still plugged in
No cat
2 o2 sensors hooked up
Truck weighs 2200kg

125km/
4th gear
3600ish RPM
Flat ground
No wind

My fuel consumption is ˟˟˟king unbelievably horrible

22liters
To travel 107km

Somebody out there encounter this???

This can’t b normal!
Yes .. I know 5.29’s would b beneficial
( that’s coming end of January)

And...
If I plug in a scan tool that has live engine monitoring..
Engine load seams very hi.
Even at a idle

 

I was told that the 98 3.4 had different injectors then the 96
could the b the cause???

 

What do you mean Engine Load seems High??

Just how are you figuring out your mileage ??

Have you done a average of several trips??

If I did the math correct just guessing that is close to what I get .

What is the history of the engine fresh rebuilt all new parts ??

Used engine of unknown miles ??

Then with the 2 senors in the exhaust you no doubt might be confusing the ECM with no cat

You would also be getting a Cat code at least one.

Could your harness be messed up it is if your still getting auto tranny codes

I am hoping you live with no emission inspections