fitted mpi fuel inj from a mk2f into my mk2 , cant seem to get it sorted suffers from a bad idle,bit bumpy pop pop sound and refuses to start hot - between 3-20 mins , will start with bts undone , drives fairly okay above idle a few things ive tried /done timing set as per the book air bypass mixtured tired various settings ...its set to 14.1 afr via a wideband gauge at the moment tried another dizzy /cap/arm tried another coil correct plugs fitted earths good tried another tps no obvious air leaks + charcoal can deleted correct 3 bar pump fitted new genuine blue sender plus tried others i had laying around spare set of used inj tried with new o rings spare afm tried blocked the isv at the tb elbow- no change in running engine basics should be fine as ive had the car driving for 2 years on a carb ..ive not touched the internals since has crude diagnostics , no codes showing still waiting on a ecu to try...them im pretty much out of ideas , anyone localish to cambridge that knows these , or a garage that remembers old cars , none of the garages ive spoke to have any ideas and dont really work on old toot
add to the list tried spare ecu , tb , fpr , ran new wires for blue temp sender end to end , o2 sensor fitted no change