How to determine ISC year, 90 or 91+?

[robs90tsi]

I want to go to the junkyard and pick up a couple ISC's for my car, just in case, but my problem is that I have a rebuilt 6-bolt from a 1Ga eclipse, but I cant remember if it was a 90 or 91. I know they are different, but my question is how different?? Any obvious differences? Are they in different locations?? Someone please help me determine which year my ISC is, thanks, I could post a pic if needed, but Im really just looking for a place that has pics and can show you thier differences so I know what to look for, thanks.

 

[vintagemuscle]

the isc's on the tb from 90 to 91 are different. the 90 model tb has the isc directly under the tps. the 91+ have the isc on the back of the tb towards the firewall.

 

[robs90tsi]

Ahh, does anyone have any pics of either of the 2??

 

[vintagemuscle]

here ya go. 90tb, notice that round thing under the tps and vacuum nipples. that is the isc.

 

[robs90tsi]

Ok, perfect, thanks for the help, I knew thats where my ISC is, I just wasnt sure if it was a 90 or 91, so the 91 and up ISC would be on the back of the TB facing the firewall?

 

[vintagemuscle]

yes, not sure if it faces the firewall but that is where its located.

 

[robs90tsi]

Awesome, thanks for the help.