intake manifold help

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(91 civic)my friend just swaped an si manifold onto his car. and the car wont start.the mani is missing the fast idle valve,could this be the cause of it? and he had take the old tps censor from the other many(could that cause it not to start). also are the hf and the si injector resistor any different ? does he need an si resitor box to push the si injectors.any help is appreciated thanx
 
No, the Si and HF resistors are the same. I'm using my HF ones with my b16 and its running fine. I duno about the other stuff, sorry.
 
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