crsracing19

alrighty im running lean and i need to test my a/f sensor and injectors.
whats the proper procedure on this do i just grab my volt meter and go to town? As well is there any way by visual inspection i can tell if an injectors bad and how do i test them volt meter?
anyone know where i can find the stock volt ratings for the a/f or 02 sensors and the injectors for an 05 non rev up

Brett@AwesomeZ

In order to get a real reading from your O2, you'll need to connect to it with an appropriate diagnostic tool. Just taking your volt meter to it won't really get you anywhere and you wouldn't be able to get a good reading out of it while driving.

You can check to see if you have battery voltage at your injectors (with the key in the on position) and you can also do a resistance test to check that the coil is good, but they could still be mechanically bad or clogged. You can send em out to be cleaned and flow tested to get some real results.

redlinedifterzx

what about the injector test in the fsm would that work where you disconnect the injectors crank the engine and bag the fuel that comes out and measure that to see if any of them are spitting

Brett@AwesomeZ

Well, you could observe the spray pattern if you had the upper intake off and were watching down the lower intake runner during cranking, but that wouldn't tell you their flow rates. You can check to make sure the resistance is kosher across the coil of the injector with an ohm meter, but again, they could be mechanically clogged and there is really no 100% way to be sure without proper flow testing done professionally.

crsracing19

what do i need exactly as far as testing the voltage correctly my girlfriends dad is any electrician and i enlisted his help this weekend i dont know if he has the correct tools or not for the job

Brett@AwesomeZ

Just a voltmeter set to DC voltage, you can get to the #1 injector clip without removing the plenum. Just turn the key to the on position without starting the car and you should see battery voltage at one of the pins.

crsracing19

what about the a/f 02 sensor if it can be done why not just check and make sure

Brett@AwesomeZ

Not really man, your 02 sensor voltage is going to be jumping around a lot and most voltmeters don't react quick enough to keep up. In order to really check all that out properly you've got to hook up with a scan tool.

Unless you have a high-dollar graphing multi-meter.

crsracing19

scan tool as in obe2 thing idk what are scan tools are called to tired to think

Brett@AwesomeZ

Haha, don't sweat it too much man. These cars are really advanced and if there was something really going wrong with one of your sensors/actuators, your CEL would come on to let you know.

If you are really interested in knowing about all this stuff you can pick up a program that can scan your computer for as little as $150.

http://www.obdscan.net/

P.s. and thats crazy that you are in Thousand Oaks redlined, i used to live in Valencia and my parents did some business out there.

crsracing19

im running a code which y im doin all this im running lean in bank 1