Is the N318 interchanageable withthe N326 I have searched. 1987 T2 the 318 is the original.

 

ttt

 

If no one knows just point me in the right direction

 

n318 is turbo and n326 is non turbo. i would recommend not using the n326 sensor in a turbo car. the turbo boost sensor retards the timing at boost so if you don't want to blow it up find another n318 boost sensor.

 

The n318 is for turbo cars, and is calibrated for a range of vacuum up to and including atmospheric, and then up to about 15psi. Voltage range of 0-5v or so.

The n326 is for NA cars, and is calibrates for a range of vacuum up to and including atmospheric and no farther. Voltage range, still, of 0=5v.

So, what does that mean? At, say, 3.5vdc, the turbo sensor may be indicating 6psi. However, since the NA sensor uses the same voltage range but a much different pressure scale, it's 3.5v may indicate well below atmospheric, still in vacuum.

What this means is that, in a car with a turbo ecu, and an NA pressure sensor, going up to atmospheric in reality makes the computer think the car is boosting 8psi or more. This means you could hit fuel cut without even boosting, or could be retarding timing while still in vacuum.

Bottom line, it'll screw things up, don't do it.

 

yeah like i said.