Do i need a re map?!?!

[James Alltrades]

Hi all, i have put a 2.4 rwd 125psi engine in a crewcab twin wheel truck, which was previously a 90psi.
I have used the ecu that was already with the new engine. But it is running really underpowered, 1st 2nd and 3rd gear aren't to bad, but unless im going down a steep hill it never wants to leave 4th gear.. And going up a steep hill, it struggles even in 2nd and 3rd sometimes...
I've read a bit about axle ratio's and re-maps. This engine was originally in a single axle van, now its in a twin wheel truck, could this be the problem?
Thanks in advance for any help or thoughts.

[ake]

Sounds like its in limp mode.
You need some to plug it in and check the fault codes

[James Alltrades]

only codes are air to the turbo related.. two of em?
battery isn't charging either...

[James Alltrades]

I will try get the codes, just called me pal, i may have been wrong about that

[ake]

Did the donor have the electric fuel pump on the top of the fuel filter?
Have you transferred it to the new van?

[James Alltrades]

Yes mate, lift pump is on there and working... Had to put the inertia switch in.

[James Alltrades]

Turned out it was a dusty clogged up sensor on the intercooler hose!! Runs like a beaut now!