I know theres Stickies but I'm still confused on what I have here. 13B NA 88 in a convertible 5speed. I think their messed up and need replacement same as the plugs bc they broke when removing to replace fuel lines. Thanks in Advance!



While I have yall here what size are the 3 Vacuum lines behind the Alternator on the Dynamic Chamber? Haven't looked em up yet but what do they do?

 

If they're the original Mazda FI's, then there will be a p/n on the side. This photo is a little fuzzy, but the p/n is 195500-2010.

It's best to use the p/n to identify the FI. An '88 n/a should have a 460 cc FI. You should measure the resistance to identify whether it's high or low impedance. Here's a link that might help: https://www.rx7club.com/2nd-generati...mation-713660/

84-85 13B NT low square center 680cc orange 195500-0900
86-87 13B NT low square center 460cc red 195500-1350
86-87 13BT low square center 550cc tan 195500-1370
88 13B NT high square offset 460cc purple 195500-1350
88 13BT high square offset 550cc purple 195500-1370
89-91 13B NT high oval center 460cc red 195500-2010
89-91 13BT high oval center 550cc purple 195500-2020

12-16 ohms is the high impedence
2-3 ohms is low impedence

 

An absolute god send sir 🫡🫡