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Discussion Starter #1
Does anyone know what would be the easiest way to check my injectors?

I think I might have one or two that are bad because the idle is a little rough.

I just changed the distributor cap, rotor, plugs, wires and air filter. I am going to be changing the fuel filter this weekend. I thought it may have been my alternator but it seems to be good, I had it checked out twice.

Does anyone have a used set of injectors at a good price.


Thanks
 

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DIY User
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well i just burned out an injector last month.... i check them by checking the resistance. you can use a multimeter.... my burned otu ones were 0 ohms.

but when cyl 1 was gone you could tell, the idle wasnt rough, it was horrible, and the accelaration was even really bad.....

i dont know much about injectors, but my mechanic is a real cool guy and was teaching me, even after the shop closed, because i absolutely need my car....
also ebay has some sued injectors for a decent prioce.... new ones are expensive.
 

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Just check their impedance with a multimeter that should tell you which ones are worn out. My bad one was off from the others by 1 Ohm I believe (it functioned on and off).

New injector cost ~$100.
 

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Altimaboy
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? If 1 of your injector does not work, does your piston still move, or do only 3 pistons work?
 

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LOL

of course it still moves.. its connected to the frikken crank.

all four still move, but 1 aint making power. (very rough running, poor power etc)
 

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Its pretty bad. Things in the engine are designed to expect certain things to happen at certain times. I assume it would throw off the harmonics of the engine.
 

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Just disconnect each injector harness and probe the two terminals at the top of the injector w/the multimeter...

However-Ohming will not always determine a bad injector. In fact, they will also tick normally. They can get clogged partially shut or open and will still ohm fine.

Still, it's a free and quick diagnostic to ohm them and would be the first thing I'd try. You can always swap a suspected injector to see if that particular cylinder still behaves the same...

BTW, there are a ton of threads on diagnosing injector problems..

Jeremy
 

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Discussion Starter #12
Thanks for the information, I am going to take a look at it tomorrow. I hope I can get it fixed with spending too much time and money.
 
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