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wvumtnbkr
wvumtnbkr UberDork
5/18/19 9:17 a.m.

I have seen some really strange exhaust failures on rx7s.  Collapsed inner wall of exhaust pipe, weird restrictions at y pipe, etc...  the test of disconnecting before the cat is very beneficial.  Just looking in the mufflers won't give you the entire picture.

BirgerBuilder
BirgerBuilder Reader
5/21/19 2:59 p.m.

For the update: 

wired 6 ports open- idled like crap/ no change

realized I also pulled a vacuum line off - idled normal/ no change

pulled TPS sensor off- no change

built a led blinker light for the 'OBD 1' diag. - port throws no codes

Did FSM check of secondary injectors, (Just trying to listen through a screwdriver) Do not hear any firing

 

Next step: build injector noid light, then pull injectors and attempt to get them to spray manually. 

 

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