Nissan Repair: 93 Maxima Sputter, volt ohm meter, pressure test


Question
Eventhough I havent checked the things you stated in my 02/19/2007 question. I did check the Ignition Module, It did appear to work and then I did the whole disconnect plugs from coil packs (RPMs should drop). well from left to right.....the 1st, no drop, 2nd rpm drop, 3rd no drop. I also decided to disco the injector plugs from the front 3, 1st no drop, 2nd drop, 3rd no drop. Could it be my injectors?

Answer
John,

The coils usually do not fail completely and you hav eto do an ohms check to be sure if they are defective as you would do an ohms check on the injectors and a pressure test as well.  I would get an volt/ohm meter and check both and then do a pressure test on the fuel system to see if it is within range as well as do a leak down after the key is turned off to see if you have an injector leaking.