NoPistons -Mazda Rx7 & Rx8 Rotary Forum

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-   -   Fuel Injectors (https://www.nopistons.com/2nd-generation-specific-17/fuel-injectors-10856/)

critter 01-17-2003 08:43 PM

Are the outer injecters the secondary injectors? Any way to check to see whats working? Are they difficult replace and are the ones at auto zone any good? Help!!!

13BAce 01-17-2003 09:09 PM

You're talking about a non-turbo, right? Yes, the outer injectors are the secondaries. What problem are you having? I've never seen injectors go bad, except for some leaking.

critter 01-17-2003 09:17 PM

The engine cuts out under load around 3 to 4 k rpm. I'm going to check the ground first. I'm starting with the easiest.

1Revvin7 01-17-2003 09:32 PM

yes check the grounds first, could also be the wiring and ecu.

Apex13B 01-18-2003 12:19 AM

tps adjustment??????????????

FCmaniac 01-18-2003 12:30 AM

I didnt know autozone carried RX7 injectors

13BAce 01-18-2003 12:31 AM


Originally Posted by critter' date='Jan 17 2003, 07:17 PM
The engine cuts out under load around 3 to 4 k rpm. I'm going to check the ground first. I'm starting with the easiest.

That's a common problem, but it's probably not your injectors. Try adding a good clean engine ground and see what happens.

dac 01-18-2003 02:13 AM

It's the injectors! Mine did that too... and I spend far too much time chasing my tail on, grounds, tps, tuneups, clogged cats, and the whole time it was my 2nd injectors where bad.



Best way to tell is to swap them... It's a pain in the butt, (The Primarys are under the manifold), but depends what your time is worth.

j9fd3s 01-18-2003 01:09 PM

ive seen the ground side of the secondry injectors fail but the actual injector being bad is super rare



mike

dac 01-18-2003 04:15 PM

Dude you joking right? People are replacing injectors all the time. I have had a set of 460cc injectors get clogged (only the 2ndarys) and I bought a set of 550cc turbo injectors that were clogged.



Injectors are electro mechanical and like everything else they fail... The get clogged, the rust from moisure in the fuel, they simply don't last forever.



Injector rebuild/cleaning companys wouldn't exist if injector failing was super rare.


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