MAP sensor? Options

[bdog_v]

Hello my 94 celica GT has gone from running *only* at idle to not firing at all it is dead in the water. I have checked for spark and fuel both are there. I even installed new fuel injectors with no luck. So I am wondering if the MAP sensor can act like this when it goes out?


-I tried reading the codes after changing the fuel injectors and what I got was constant blinking check engine light, which I don't believe means anything. Then I disconected the Map sensor and hooked it back up and tried to start the vehicle with no luck and did the code reading one more time. This time I got a 31 which I believe is related to the MAP sensor, now I don't know if I got the code because I had just disconnected it and hooked it back up or if it is the problem???? ANy thoughts....




-Also they are very expensive so I was hoping to pick up a test sensor or two out of a junkyard, now I need to know what years and models of vehicles Toyota made that would have this same sensor? I know I won't find any 94 celicas in our junkyard, maybe a few of there trucks?????? THanks guys

[Gary]

Yes, if you disconnect the MAP sensor and try to start the engine, it will throw code 31.
Don't forget to clear that code so you won't get confused. (remove 15A EFI fuse)
There is a method of testing the MAP sensor using a volt meter in the BGB.
Here is for the 5th gen 5sfe map sensor but the procedure should be the same.