34 PDSIT-2/3 Idle Mixture Enrichment Module

Well here's a story....
In a nut shell i have only started and moved my Bus in and out of the garage due to the welding needed to do to the rust free Aussie import however i also changed the fuel filter which was full of yuk and changed the throttle cable/accelerator peddle, but it does start and run only if i had one thing at a time to eliminate the problem.