Zak Ogden

My 1989 Mazda rx7 n/a will bogg out/ loss of power at about 3000rpm... if i start it the light will instantly turn on but if I turn it off then start it back up it will go off and be ok then at a random time after driving it will come on and will idle but will go very slow please help thanks

lduley

iTrader: (1)

Sounds like your OMP is failing and causing limp mode randomly, starting to become very common on s5's

misterstyx69

iTrader: (142)

What Light turns on???

insightful

+1, was common a while ago but now i'd guess the majority of S5's have had at least 1 OMP fail regardless of mileage on them.

Zak Ogden

Ok thanks is there anyway to fix it or where can I find the new omp

lduley

iTrader: (1)

well, your options are pretty much this

Buy a new OMP and ECU (easily going to cost over a grand or more)
Buy a new OMP and hope the old one didn't fry the ECU (still close to a grand, more if the ECU is fried)
Buy a used OMP and Used ECU and take your chances on how long they will last(maybe $200ish)
Unhook the OMP, put on a block off plate, start premixing your gas and get your ECU rteked (bout $500)
Unhook the OMP, put on a block off plate, start premixing and go full standalone ECU (probably over $1K)
change intake over to carb and carb the engine (close to $1K)
v8 swap it
Sell the car
smash the car