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Well...thanks for the reply ....your not gonna believe this one ...I still can't ...I went ahead and bought the map sensor ...hooked it up and presto ...everything is running like a champ ....I guess that dam sensor can mess up the fuel air mixture so bad if its out that it can cause it not to start ...

Alright guys.....I am no master mechanic...but I am trying to learn....this is an 88 5sp 2.9 4wd....everything has been running fine. let it set for a couple of months and then when I drove it...it started acting up ....it would run fine then all of a sudden shut down ...or idle would jump.....then ...