Ah yes the ole fault codes. I have an 87 and get codes 33,34 & 36 every now and then. Run car up to temp (30mins) and restart sounds like flat battery, occassionaly it gives avery loud sharp "ping" when it fires - very disconcerting, sounds just like a valve being hit. I found 2 & 8 running half the temp of the other 6, had injectors removed, cleaned, both 2&8 clogged up. The car ran great after that, but the codes come and go along with starting issues. Jensen says the nose bush in the S/motor is warn and heat soak is causing the start issue, coupled to battery voltage being drawn down below values that the computer needs to set the timing/advance etc giving the ping !?. Codes 33&34 can be overlooked, they are air flow too high/low and only occur in first 20~120sec upon start up, if not constant (eg blocked aircleaner) they will reset upon restart. The above is very frustrating, since Im a firm believer in things running right, Im also a tight a'$/ who likes to fix them myself, I currently can't get under cars so the battery/ starter motor issues will have to wait. Considering how it was converted, with the battery moved I exect to find issues with earths, leads, connections, crimp terminals etc under the car.