I really need some help here. this is a long story, and bits of it have been posted here before - sorry 'bout that, but - OK - it all started a long time ago when a guy wanted a used motor dropped in his '92 960. he got a used motor from a salvage yard - out of a '93 960. dropped it in, crankshaft would not accept the torque converter. he went back to the junk yard and got the converter out of the '93. i bolted it all together and it ran like a top. couple weeks later, he's complaining about an extended crank issue, but doesn't want it repaired. another couple weeks later it won't start at all: code for "no CKP sensor signal" present, no spark trigger to any of the coils, no injector pulse, fuel pump runs "on" and cranking. scoped CKP signal - perfect all the way to the ECM. posted at iATN, got a response from a fellow who had the exact same problem after an engine swap - seems that the ring gear on these two model years ('92 and '93) have exact opposite trigger teeth for the CKP on the outer ring. in his case, swapping '93's ring gear with the one from the '92 solved the problem. tried it - didn't help. at this point, i have tried three different ECM's. i have tried a used CKP sensor from a running 960. i have tried towing it to the local Volvo expert (40 years experience) who, after a good three days of testing, just said "tell this f*ing guy to buy a new car...". i have replaced every ground on the vehicle. i have replaced the positive battery cable and battery. i have tried four or five sets of main/fuel relays. nothing works. still have perfect CKP signal to whichever computer i try and still nothing. have every prescribed input/output present/proper at the ECM and all relays and ignition switch test out OK. AND there is one other issue - once in a great while i will be testing this pig and i'll walk away in frustration and then VIOLA - my injector test light will illuminate SOLIDLY with the key in the off position - the car has decided to send constant power to the injector circuit, even though the key is off, and even though having the injetors on constantly is as useless ass having them off constantly. it will exhibit this behavior for five or ten minutes. LASTLY, it has developed a habit of flashing all trans control lights on the shifter console whenever i turn the key to the on position! ain't that grand!!

this is silly and maddening. ANY IDEAS WILL BE APPRECIATED MORE THAN I CAN SAY!!!!!!!!!!!!!!!!1
have a wonderful day/evening/night/whatever...my head hurts!!!!