I have the H22A4 in the car now and used the TB that came with it (5th gen.), which has the MAP sensor and TPS sensors attached to it. However, the MAP sensor is located on the firewall for the 4th gen. and I am not sure which one I can use....

Do I have to extend the wires from the firewall to run to the TB MAP sensor, or just use the existing one?

 

honestly it doesnt matter which you use

 

only thing I was thinking about was the fact that there is a hole on the top of the TB where the MAP sensor goes, so there is a MAP sensor attached there ... and I still have the one attached to the firewall.....didn't want a weak spot in the vacuum system (if that makes sense)...

 

as long as the sensor on top of the tb is there, or something is plugging its hole, it will be ok....if you have unused vacuum ports, just get some plugs and pop em on