Cannot get the car to start. Ran last week, wasn't spectacular, but it ran. This week I took off the sc and the throttlebody to put a new high temp hose on the egr. now it will not start. it fires like one time, but will not run. Have replaced motor mounts in the last 2 weeks, also have done water temp sensor and tps. get codes 51,53,54,34. please help. ps 89 5speed