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'''1991 Audi 100''' (2.3L/5cyl 2 valve NF engine.) originally with KE Jetronic (weird, many older engines had proper fuel injections; this might be the last KE-Jetronic engine built) * fuel rail fabricated * will be kept NA (normally aspirated). 139 Hp ? Smooth and clean running and fuel economy is main target (not power) ** factory compression ? Around 9.6 ? * KE jetronic => replaced with VEMS (speed density setup, 115 kPa MAP sensor) ** owner planned to "alien-log" the factory ignition advance table. However, there is almost certainly no value in that table. Should not be big deal to make a better igntune (for RON95 fuel). Probably the orig is tuned for pessimistic lower RON fuel * ditributer kept for now * either 35pin factory connector kept, and VEMS made with frontplate for that connector '''NOT feasible, because one connector is for ign, other for fuel, better cut off...' ** => '''wires cut and EC36 + EC18 connector crimped''' the way to go ** new '''harness branch:''' 12V + 4 wires from EC18: '''for LSU4 wideband sensor''' ** there are a couple of extra wires, eg to the air filter (originally flap type air-mass / air flow sensor; not needed) If tuned in August, might need some tune adjustment in the winter. ---- '''Sensors''' * MAT ? * WBO2 will be added * knock ? Does the block have provision for 2 bolts ? ---- '''A/C''' compressor is in, but was not operated for some time. Needs gas, most likely (or was it washed and changed to R134A ? dunno) ---- '''Carbon canister''' ---- '''Trigger''' * primtrig: 5 window HALL (on camshaft, in distributer) * sectrig: HALL (not used for now) ---- '''Notes''' Factory harness schematics: https://www.vems.hu/~vemshu/files/MembersPage/MarcellGal/Audi/KEjetronicOut/ Most appropriate is apparently [http://vems.hu/files/MembersPage/MarcellGal/Audi/KEjetronicOut/audi10090.pdf Audi100 90.pdf p4] old: https://www.vems.hu/~vemshu/files/MembersPage/MarcellGal/Audi/KEjetronicOut/nf01.jpg ---- '''injector''' Bosch 280 150 716 (donation from some BMW) cc/min ? recommended cranking pw at 20C = 10 msec ? ** Or req_fuel for VE=100 or VE=200 ? ---- '''35 pin Pinout''' *1 white-grey ICU5 *2 brown-white AFP/2 *'''3 black-red CLT NTC/2 temp sensor (coolant out from cyl head)''' *4 red-yellow KJET pressure control *5 red-white KJET pressure control *6 blue-green EGR TEMP sensor (?) *7 ... *... *'''14 black-green Fuse 26 node15, ECU 12V ?''' * ... *'''18 GND''' *... *'''35 brown-red GND'''
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