Rb20e Not Starting

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In a previous post i stated where i bought a rb20e engine in min condition, i believe that it came out of a c33, now the harness is slightly different than mine, the jacks to the brain are the same however the ones that send signals to the dash are different so that part is not hooked up to the car's harness. but to me the critical things have been pluged in and therefore it should start, however its not, i am not even getting any spark by the no. 1 plug. i removed the harness from the engine and used back mine, so now all the jack plug back into each other, still not starting and still no spark by the number 1 plug. now the the tranny is a RB#2 where mine was originally RB#1 and there are two extra plugs from the tranny harness, this tranny is electronic speedo where mine was cable so i belive one of the extra jack is for that, but i am not sure what the other one was for. any ideas as to why its not starting and would this extra jack from the tranny be my problem?

thanks

roger

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p.s. i know i should have gone rb25det, but funds doh permit at this time, so i really just wanted to get her back on d road

[Nic_A31]

Probably your problem, since the it needs to know that you're in Park or Neutral otherwise it wont start.

The interior loom harness is a bitch, but you can rewire it.

The ECU still needs the dash to some extent, the ECU gets it speed signal from the gauge on cable driven speedo's, unlike electronic speedo's, it might use the dash for temp, fuel, etc.