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I've got a d15b6 and associated parts leftover (air box assembly, ecu, etc...) from a d15z1 swap into my 1990 crx hf. Let me know what you need/want and I'll get you some pics if i've got it. Could be good for someone doing an MPFI conversion. The head is good and has new valve stem seals...

Got the d15z1 fully swapped into my crx. Engine started up no problem, no cels. Engine idles great, revs fine, but has a hesitation/surging problem around ~1500rpm at part throttle (think trying to take off in first gear). Have gone through all the vacuum diagrams and everything is hooked up...