hellspcangel911

just did a double check, the car is a 87 ... according to the Factory manual (and not TunersShop) the correct plugs are NOT the NGK-R BR9EQ-(XX) , plugs that are in there. Doing some more reasearch I have found that these incorrect plugs that are there are for the 84-85 RX7s....
But the car was said to have ran on them...

SO what plugs should I get: 2 SD11A and 2 SD10A?


Thanks

hellspcangel911

OK, work has been completed. I checked all the vacuum hoses, no leaks or cracks. I checked all the wires for corrosion, poor grounding, loose contecitions...etc, done.
The fuel pump works, jumped the yellow connector, it works, I connected a test light to see if the fuel pump gets power when its supposed to, it does. I cleaned all four injectors, replaced some fuel lines (the fuel rails were totally clean and so were the screens in the injector tops). I cleaned the throttle body, checked to make sure everything was function, check all the contacts, the AF contacts and wires. I bought a working ECU wth the same numbers...etc
I checked that the fuel inectors work by attaching 10 psi of air from my compressor to itand then applyin 12volts to the inector, all of them went click and shot the air out. I checked the resistance per the FSM and my are between 7ohms to 4 ohms, while the manual calls for 10-12ohms or so.... its that a big deal? could ALL four injectors be bad?

anwyas, i replaced all 4 plugs with the NGK-Rs as people have suggested....
But all this work feels irrelevant because it still WONT FIRE!

Help!

hellspcangel911

ya'll stumped?

buttsjim

Someone suggested using starter fluid--did you ever try that? It's a quick way of determining whether you have ignition or fuel problems.

It's also helpful to pull out the CAS and rotate it by hand to see what's going on. With one of the leading plug leads grounded against the block, and with your primary injectors removed from the block, but attached to the fuel rail, you can rotate the CAS and watch for spark and fuel spray (Fire Hazard).

With my S4 TII, I can put a meter lead in the appropriate pin socket of the resistor pack for the primary injectors, and monitor the voltage as I rotate the CAS. I'm not sure, but I think you can do the same. If you've already re-installed your injectors, you can use this method to check them (the voltage drops when they are signaled to spray). You already know they spray fuel--this test will let you know that they are being told to do so.