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Rb20 Ecu On Rb25 Issues

honan

By honan,
in Engines & Forced Induction

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honan Collaborator

honan

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Hi, have a series one r33 gtst have just fitted a z32 afm, a rb20 ecu with nistune board.

The car has fuel at the injectors, brand new splitfire coilpacks, brand new plugs and cranks over fine, it will just not fire.

Now i Know the ecu is a direct fit BUT the VCT sensor is no longer in use, do i need to earth this to bypass it?

What else can i check? i have been over every sensor...this car was also running a week ago!

any help would be greatly appreciated

thanks guys!

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https://www.sau.com.au/forums/topic/330119-rb20-ecu-on-rb25-issues/
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honan Collaborator

honan

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People were saying there was 2 wires you had to swap but on the inside of the ecu these are connected any way.

Also the ecu was meant to have a safe map loaded in to suit the new injectors and the z32 afm...but after all the stuff arounds ive been getting, i''m starting to think they possibly skipped this step.

every sensor is back in place, the car ran fine a week ago but now nothing.

thanks for the help, bring on anymore!

murrayis Mentor

murrayis

Posted
Posted (edited)
nope, rb20 ecu should run a rb25 without mods, but just wont run well.

Im thinkin maybe something went wrong while loading up the map!

Are you sure?

post-23119-1279929586_thumb.png

I'm just saying because I had to switch mine around using a rb25 ecu on a rb20

Edited by murrayis

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